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[2023] Hydrofoil Catamaran: The Ultimate Guide to Foiling on Water

• November 1, 2023
• Hydrofoil Basics

Experience the thrill of flying above the water with a hydrofoil catamaran!

Are you ready to take your hydrofoil boarding to the next level? Look no further than the hydrofoil catamaran. In this comprehensive guide, we’ll dive deep into the world of hydrofoil catamarans, exploring their history, how they work, their benefits and drawbacks, and everything else you need to know to make an informed decision. So, buckle up and get ready to soar above the waves!

Table of Contents

Quick answer, quick tips and facts, how does a hydrofoil catamaran work, benefits of hydrofoil catamarans, drawbacks of hydrofoil catamarans, choosing the right hydrofoil catamaran, maintenance and care, recommended links, reference links.

A hydrofoil catamaran is a type of watercraft that combines the stability of a catamaran with the lift and speed of hydrofoils. It uses specially designed foils to lift the hulls out of the water, reducing drag and allowing for faster and smoother sailing. Hydrofoil catamarans are popular among sailors and water sports enthusiasts for their incredible speed, maneuverability, and thrilling foiling experience.

Shopping Links: Hydrofoil Catamarans on Amazon | Hydrofoil Catamarans on Walmart | Hydrofoil Catamarans on Etsy

• Hydrofoil catamarans can reach speeds of up to 40 knots (46 mph) or more, depending on the design and conditions.
• The foils on a hydrofoil catamaran can lift the hulls out of the water, reducing drag and allowing for a smoother and faster ride.
• Hydrofoil catamarans are used for various purposes, including racing, recreational sailing, and even transportation.
• Foiling on a hydrofoil catamaran requires some skill and practice, but it’s an exhilarating experience once you get the hang of it.
• Hydrofoil catamarans come in different sizes and designs, catering to different skill levels and preferences.

Hydrofoil catamarans have a fascinating history that dates back to the early 20th century. The concept of using hydrofoils to lift boats out of the water and reduce drag was first explored by Italian engineer Enrico Forlanini in the late 1800s. However, it wasn’t until the 1950s that hydrofoil technology started to gain traction in the boating world.

The first hydrofoil catamaran, known as the “Aquavion,” was developed by the French engineer René Guilbaud in the 1950s. This innovative design combined the stability of a catamaran with the lift of hydrofoils, revolutionizing the world of sailing. Since then, hydrofoil catamarans have evolved and become more advanced, offering incredible speed, maneuverability, and stability on the water.

A hydrofoil catamaran works by utilizing hydrofoils, which are wing-like structures mounted underneath the hulls of the boat. These foils generate lift as the boat gains speed, lifting the hulls out of the water and reducing drag. This lift allows the hydrofoil catamaran to achieve higher speeds and a smoother ride compared to traditional boats.

The hydrofoils on a catamaran are typically designed with a curved shape, similar to an airplane wing. This shape creates a pressure difference between the upper and lower surfaces of the foil, generating lift. The foils are usually adjustable, allowing the sailor to fine-tune the performance of the catamaran based on the sailing conditions.

To control the hydrofoil catamaran, sailors use a combination of steering and sail trim. By adjusting the angle of the foils and the sails, they can optimize the lift and balance of the boat, ensuring a stable and efficient ride. It takes some practice to master the art of foiling on a hydrofoil catamaran, but the rewards are well worth the effort.

Hydrofoil catamarans offer a range of benefits that make them a popular choice among sailors and water sports enthusiasts. Here are some of the key advantages of hydrofoil catamarans:

Speed : Hydrofoil catamarans are known for their incredible speed. By lifting the hulls out of the water, hydrofoils reduce drag and allow the boat to glide smoothly above the waves. This enables hydrofoil catamarans to reach impressive speeds, making them a thrilling choice for racing and high-performance sailing.

Maneuverability : The lift generated by hydrofoils enhances the maneuverability of catamarans. With reduced drag, hydrofoil catamarans can make sharp turns and quick maneuvers with ease. This agility is particularly useful in racing scenarios, where every second counts.

Stability : The dual-hull design of catamarans provides inherent stability, even at high speeds. When combined with hydrofoils, the stability of hydrofoil catamarans is further enhanced. This stability makes them suitable for sailors of all skill levels, from beginners to experienced professionals.

Efficiency : Hydrofoil catamarans are more efficient than traditional boats. By reducing drag, hydrofoils allow the boat to sail faster while using less power. This increased efficiency translates to longer sailing distances and reduced fuel consumption, making hydrofoil catamarans an environmentally friendly choice.

Versatility : Hydrofoil catamarans are versatile watercraft that can be used for various purposes. Whether you’re looking for a high-performance racing catamaran or a recreational sailboat for family outings, there’s a hydrofoil catamaran to suit your needs. Some models even offer the option to switch between foiling and non-foiling modes, providing flexibility on the water.

While hydrofoil catamarans offer numerous benefits, it’s important to consider their drawbacks as well. Here are a few potential downsides to keep in mind:

Cost : Hydrofoil catamarans tend to be more expensive than traditional boats. The advanced technology and materials used in their construction contribute to the higher price tag. Additionally, maintenance and repairs can also be costly, especially if specialized parts or services are required.

Learning Curve : Foiling on a hydrofoil catamaran requires some skill and practice. It can take time to learn how to control the boat effectively and maintain stability while flying above the water. Beginners may find the learning curve steep, but with dedication and proper instruction, anyone can master the art of hydrofoil catamaran sailing.

Weather Conditions : Hydrofoil catamarans are sensitive to weather conditions. While they excel in flat water and moderate winds, rough seas and strong gusts can pose challenges. It’s important to be aware of the weather forecast and choose suitable sailing conditions to ensure a safe and enjoyable experience.

Transportation and Storage : Hydrofoil catamarans can be larger and bulkier than traditional boats, making transportation and storage more challenging. Specialized trailers or racks may be required to transport the catamaran, and adequate storage space is needed to protect it when not in use.

Despite these drawbacks, the thrill and excitement of foiling on a hydrofoil catamaran outweigh the challenges for many sailing enthusiasts.

When it comes to choosing the right hydrofoil catamaran, there are several factors to consider. Here are some key points to keep in mind:

Skill Level : Consider your skill level and experience as a sailor. Some hydrofoil catamarans are designed for advanced sailors, while others are more beginner-friendly. Choose a catamaran that matches your skill level to ensure a safe and enjoyable sailing experience.

Intended Use : Determine how you plan to use the hydrofoil catamaran. Are you looking for a racing catamaran, a recreational sailboat, or something in between? Different models offer varying features and performance characteristics, so it’s essential to choose a catamaran that aligns with your intended use.

Budget : Set a budget for your hydrofoil catamaran purchase. Prices can vary significantly depending on the brand, model, and features. Consider both the upfront cost and the long-term maintenance expenses when determining your budget.

Brand and Reputation : Research different brands and their reputation in the hydrofoil catamaran industry. Look for brands with a track record of producing high-quality, reliable catamarans. Reading customer reviews and seeking recommendations from experienced sailors can also provide valuable insights.

Demo and Test Sails : Whenever possible, try out different hydrofoil catamarans before making a final decision. Many manufacturers and dealers offer demo and test sails, allowing you to experience the performance and handling of the catamaran firsthand. This hands-on experience can help you make an informed choice.

Remember, choosing the right hydrofoil catamaran is a personal decision that depends on your individual preferences and needs. Take your time, do your research, and consult with experts to find the perfect catamaran for your hydrofoil adventures.

Proper maintenance and care are essential to keep your hydrofoil catamaran in top shape and ensure its longevity. Here are some maintenance tips to help you keep your catamaran performing at its best:

Rinse with Fresh Water : After each sailing session, rinse your hydrofoil catamaran with fresh water to remove salt and debris. Pay special attention to the foils, as saltwater can cause corrosion over time.

Inspect for Damage : Regularly inspect your catamaran for any signs of damage or wear. Check the foils, hulls, rigging, and sails for any cracks, dents, or loose fittings. Address any issues promptly to prevent further damage.

Store Properly : When not in use, store your hydrofoil catamaran in a dry and secure location. If possible, keep it covered to protect it from the elements. Consider using a boat cover or storing it in a boat shed or garage.

Follow Manufacturer’s Guidelines : Follow the manufacturer’s guidelines for maintenance and care. Each catamaran may have specific recommendations for cleaning, lubrication, and other maintenance tasks. Adhering to these guidelines will help prolong the life of your catamaran.

Seek Professional Assistance : If you’re unsure about any maintenance tasks or need assistance, don’t hesitate to seek professional help. Local boatyards, sailing clubs, or authorized dealers can provide expert advice and services to keep your catamaran in optimal condition.

By following these maintenance tips and caring for your hydrofoil catamaran, you can enjoy many years of thrilling foiling adventures on the water.

How fast is the hydrofoil catamaran?

Hydrofoil catamarans can reach impressive speeds, depending on various factors such as the design, wind conditions, and skill of the sailor. Some high-performance hydrofoil catamarans can exceed 40 knots (46 mph) or more. However, the exact speed will vary based on these factors.

How does a foil catamaran work?

A foil catamaran, also known as a hydrofoil catamaran, works by utilizing hydrofoils to lift the hulls out of the water. These foils generate lift as the boat gains speed, reducing drag and allowing for faster and smoother sailing. The lift created by the foils enables the catamaran to “fly” above the water, resulting in increased speed and improved performance.

What happened to hydrofoils?

Hydrofoils have a rich history and have been used in various applications, including passenger ferries, military vessels, and recreational boats. While hydrofoils experienced a surge in popularity in the mid-20th century, their use declined in some sectors due to factors such as high costs, maintenance challenges, and the development of alternative technologies. However, hydrofoils continue to be used in niche markets, including high-performance sailing and racing.

Read more about “… What is the World’s Largest Hydrofoil Boat?”

Are hydrofoil boats more efficient?

Yes, hydrofoil boats are generally more efficient than traditional boats. By lifting the hulls out of the water, hydrofoils reduce drag and allow the boat to sail faster while using less power. This increased efficiency translates to longer sailing distances and reduced fuel consumption. However, it’s important to note that the efficiency gains may vary depending on factors such as the design, sailing conditions, and skill of the sailor.

Hydrofoil catamarans offer an exhilarating and thrilling experience on the water. With their incredible speed, maneuverability, and stability, they have become a favorite among sailors and water sports enthusiasts. While they may come with a higher price tag and require some skill to master, the rewards of foiling on a hydrofoil catamaran are well worth it.

When choosing a hydrofoil catamaran, consider factors such as your skill level, intended use, budget, and the reputation of the brand. Take the time to research and test different models to find the perfect catamaran for your needs.

So, are you ready to take flight on a hydrofoil catamaran? Embrace the thrill, experience the freedom, and enjoy the incredible sensation of soaring above the water. Happy foiling!

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Discover the Magic of Hydrofoil Sailboats

‍ Key Takeaways

• Hydrofoil sailboats blend speed, stability, and innovation for a fun sailing experience.
• Their design lifts the hull above water, reducing drag and enabling high-speed travel.
• Advanced control mechanisms maintain stability in varying wind conditions.
• Sails and hulls are meticulously engineered for optimal aerodynamics and lift.
• Ongoing innovations in foil technology continue to propel hydrofoils to new heights.

‍ Based on their innovation and nature, the world of hydrofoil sailboats are magical, to say the least. But what exactly makes them so exceptional?

The magic of hydrofoil sailboats lies in their extraordinary speed. They can achieve remarkable speeds that were once thought impossible for sailboats. Their unrivaled stability and cutting-edge technology redefine sailing, offering a thrilling blend of innovation and performance.

Over the years, I've dedicated myself to mastering the intricacies of the yachting world, not just as an observer but as an active participant in the hydrofoil sailing community. My knowledge extends beyond the surface, encompassing the technical aspects of hydrofoil design and the thrill of high-speed sailing. As such, I’ll provide a comprehensive and engaging exploration of what sets hydrofoil sailboats apart, making them truly magical on the waters.

Table of contents

‍ Discover the Magic of Hydrofoil Sailboats

Hydrofoils saw their early development as a concept for enhancing speed and efficiency on the water. From Alexander Graham Bell's experiments to the application of foils on sailboats in the 1950s, the quest has always been for greater speed.

But it wasn't until Russell Long championed these designs with the CEC foiling catamaran and the development of the Hobie Trifoiler that hydrofoils began to carve a distinct niche in the sailing world.

This sailboat operates on a simple yet ingenious principle: as the speed increases, the foils submerged beneath the boat generate lift. This lift thrusts the boat's hull above the water, dramatically reducing drag.

It’s similar to how air flows around the wing of an airplane, only with water's denser environment offering a different dynamic. This revolutionary foiling system allows boats to glide over waves, offering an incredibly smooth ride.

The variety of hydrofoil sailboats is astounding, from the foiling catamarans that have revolutionized the America's Cup to the twin sail trimaran designs. The fastest production sailboat, the Hobie Trifoiler , showcases what hydrofoils are capable of.

Additionally, boats like the innovative Emirates Team New Zealand vessels continue to push the boundaries of technology in competitive sailing. Whether for recreational purposes or high-speed racing, the range of hydrofoil sailboats caters to different sailing experiences and preferences.

Now, let’s explore the various aspects of hydrofoil sailboats that make them truly magical.

The Thrills of Hydrofoil Sailing

When I first stepped onto a hydrofoil sailboat, I knew that sailing would never be the same for me. Harnessing the power of the wind to achieve remarkable speeds while hovering above the water was nothing short of revolutionary.

It's an adrenaline-infused blend of sailing, flying, and innovation that promises high performance and stability with a significant reduction in wetted areas.

The allure of hydrofoiling is not just about the speed; it's the sensation of flying over the waves, defying the conventions of traditional sailing. With each gust, my hydrofoil sailboat becomes a silent, swift car, slicing through the air rather than merely sailing on the water.

When sailing with hydrofoils, you get to experience the following benefits.

• High Speed: With hydrofoils, I've seen and achieved speeds I never thought possible on water.
• Less Wetted Area: As the hydrofoils lift the hull out of the water, drag is reduced, further contributing to the craft's efficiency and speed.
• Stability: Surprisingly, the flying sensation is accompanied by stability once airborne, making the ride smoother.

The America’s Cup Competitive Foiling

Over the years, I've witnessed first-hand how hydrofoil technology has radically altered the landscape of competitive sailing. The introduction of hydrofoils has not only redefined what we consider possible in the sail area but has also brought a fresh surge of excitement to the racing circuit.

The most illustrious event in sailing, the America's Cup , underwent a transformation with the embrace of hydrofoils. Emirates Team New Zealand, a frontrunner in hydrofoil innovation, redefined the America's Cup racing in 2017.

Alongside them, the US team and Luna Rossa played pivotal roles in reshaping the landscape of America's Cup racing.

With their AC50 class catamarans soaring above the waves at top speeds that defy traditional sailing limits, they clinched the title and shifted the focus of competitive racing toward technological prowess.

The spectacle of these vessels racing is not just about the crew's capabilities but equally a testament to engineering marvels.

Also, the advent of hydrofoils in racing has certainly led to a spike in performance metrics. Here's a concise table highlighting the before and after impact of hydrofoiling in competitive Sailing:

This table illustrates just how much the racing landscape has shifted; it's not only sailing anymore.

It’s similar to piloting a high-speed aircraft, with each crew member playing a crucial role in harnessing the raw power of the strong winds in harmony with state-of-the-art technology. Watch this video for a more detailed explanation of hydrofoil sailboats and their magical power.

Technical Aspects of Hydrofoil Sailboats

In diving into the technical aspects of hydrofoil sailboats, I'll give you an insight into the intricate designs that enable these marvels to glide above the water, as well as the cutting-edge foil technology propelling them.

The design of a hydrofoil sailboat revolves around its capability to elevate the hull above the water, reducing drag and enabling high wind-speed travel. Control mechanisms are central in maintaining stability, especially when the sailboat interacts with varying wind conditions or maneuvers through shallow waters.

The hull's length and overall design are calibrated for balancing aerodynamics with hydrodynamics. In designing sails and hulls for foiling, one must carefully balance the need for power with the propensity for lift.

The sails are tailored not only to harness the wind's energy effectively but also to match the unique mechanics of a vessel in flight. Meticulous engineering ensures that the sail configuration works in harmony with the foils to propel the sailboat forward swiftly.

Additionally, the foil technology, which is pivotal to modern hydrofoils, has undergone significant further development over the years . From the materials used to the manufacturing processes, every element incorporates the latest in technology to yield extreme performance.

Advancements have led to foils that can automatically adjust to sailing conditions and speed, which is instrumental for achieving and maintaining high speeds.

Currently, the future of hydrofoil technology seems bound for even further breakthroughs. Customization and refinement of foils for specific water conditions, such as the challenges posed by shallow water, are ongoing.

Each new iteration builds upon the last, consistently advancing the field and informing the next leap in hydrofoil sailing. This persistent innovation in foil and hull technology is a testament to the potential that lies ahead for hydrofoil sailboats.

Are Hydrofoil Sailboats the Right Options for You?

Hydrofoil sailboats offer a unique and thrilling sailing experience, but whether they are the right option depends on your preferences and goals. These high-performance vessels are known for their exceptional speed and stability, making them ideal for thrill-seekers and competitive sailors.

If you're passionate about cutting-edge technology and want to push the boundaries of traditional sailing, hydrofoil sailboats could be a perfect fit.

However, they may require a learning curve for beginners and are typically more expensive than traditional sailboats.

Consider your skill level, budget, and desire for speed and innovation when deciding if hydrofoil sailboats align with your sailing aspirations.

The Future of Hydrofoil Sailboats and Their Transformative Potential

Over the years, I've been captivated by the evolution of sailing and the recent advancements in hydrofoil technology, which promise a thrilling future for these marine crafts.

The technology supporting hydrofoil sailboats is rapidly advancing, bringing us closer to a world where boats gliding above the water's surface is a common sight.

These boats use 'wings' or foils submerged in water to lift the hull above the surface, reducing drag and allowing for greater speeds. This innovation is not just limited to racing but is expected to influence recreational and transport vessels in the future.

Today, we see hydrofoils in action with hydrofoil kiteboards, which have become popular among thrill-seekers. This is due to their ability to harness wind power and achieve impressive acceleration and agility on the water. This same principle is being applied to larger sailing vessels, where performance and sustainability converge.

The further development of hydrofoil technology involves intensive research into materials and design optimizations that can handle the challenges of varied sea conditions.

Electric and solar-powered hydrofoils are on the horizon, poised to significantly impact our world by offering greener alternatives to traditional boats.

Notably, the trends in hydrofoiling indicate a shift towards more sustainable sailing, utilizing advancements in electric propulsion systems to complement the inherent energy efficiency of hydrofoil designs.

The goal is a fleet of sailboats that are not just faster but more eco-friendly, promising an exciting future where the joy of sailing is in harmony with the health of our oceans.

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Daniel Wade

I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

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Sailing’s Hydrofoiling Revolution

• By Herb McCormick
• January 18, 2023

There’s a revolution underway in the sport of sailing, and it can be summed up in one simple word: foiling.

More specifically, we’re talking about hydrofoils , the winglike appendages mounted beneath the hull of a vessel that, at a certain speed, lift the hull clear of the water. When this happens, the foiling sailboats can reach speeds two or even three times faster than possible in “displacement” mode.

And sailboats are just one element of the foiling revolution: Surfboards, paddleboards and powerboats are also getting in on the act.

An Italian naval architect named Enrico Forlanini is credited with developing the first waterborne hydrofoils, which he affixed to a 60 hp, airscrew-driven craft that topped off at 36.9 knots back in 1906. In the century that followed, a series of would-be inventors took a swing at the concept with varying degrees of success. Foiling sailboats finally ascended into the mainstream during the 2013 America’s Cup, when Oracle Team USA beat Emirates Team New Zealand in a match between foiling 72-foot catamarans (the Cup has been contested in foiling cats ever since).

Surprisingly enough, my first foiling experience happened some three decades ago, aboard something called a Hobie TriFoiler, from the popular manufacturer of Hobie surfboards, beach cats and kayaks. The TriFoiler, basically a 22-foot trimaran with a central pod and a pair of mainsails stepped on the twin outriggers, was invented by a fanatical California engineer named Greg Ketterman. The sail controls were laid out just forward of the tiny airplane-style cockpit; you steered with foot pedals. It was so ridiculously easy that even a gremmie like me had the thing foiling within moments of getting in and reaching off.

But after the initial thrill, it was actually kind of boring. Which, I believe, is why it went out of production soon after. The TriFoiler was, unfortunately, way ahead of its time.

Such was the extent of my personal foiling experience until this past summer, when a new class of foiling monohull skiffs called Persico 69Fs rolled into my home waters for a series of races among youth squads in the class’s inaugural season. I got an invitation to take a spin.

After donning my helmet, wetsuit and life jacket, I was handed the helm with a pair of skilled young sailors on board. At 25 knots, we were towed into Narragansett Bay behind a powerful RIB, foiling all the way. It was terrifying. And a preview of coming attractions.

Once the tow dropped us, the sails went up and we bore off. I skied the tiller extension while scrambling out onto the hiking racks. Which sent us off on a screaming reach. Which flipped the 22-foot-7-inch carbon rocket ship.

Twenty seconds into foiling, and I’d capsized the bloody thing. How embarrassing.

The kids, bless them, were kind and patient. We got the whole shooting match, including ourselves, back upright and tried again. The mainsail trimmer sheeted it home, we started to accelerate, and he said: “Here we go! You’re up. You’re flying!” Indeed, we were.

Hard on the breeze in the 12-knot southwesterly, things unfolded quickly. Spray was flying, and I took more than one solid wave to the kisser. I was mostly too frightened to concentrate on anything but driving, but I did glance at the speedo once: 17.4 knots. (I felt pretty chuffed until later learning a 69F’s top speed is 34 knots. Ugh.)

However, I guess I’d proved the point: With a couple of sailors who know what they’re doing, foiling is for everyone. From now on, just call me Mr. Foiler.

• More: Foils , Hydrofoil Boats , Hydrofoiler , November 2022 , Sailboats , Sailing Yachts , Yachts
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This All-Electric 332-Foot Catamaran Concept Is Faster Than Your Gas-Guzzling Superyacht

The boat features a hydrogen- and solar-powered propulsion system..

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It may be hindsight that is 20-20, but Nemesis Yachts still think it has a pretty clear vision of the future of boating. And that vision can be seen in the company’s latest superyacht concept , a high-tech, zero-emission catamaran expected to break speed records.

Dubbed the Nemesis One , the watercraft is a 332-foot hydrofoil catamaran that the boat maker claims can reach speeds in excess of 50 knots, according to a press release. As stunning as that may sound, just as intriguing is its outlandish tech, which includes hydrogen- and solar-propulsion system, a motorized sail and autonomous capabilities.

The Nemesis One with its autonomous “Oceanwings” sail deployed  Nemesis Yachts

Nemesis boldly promises that the concept will be the “world’s fastest luxury foiling yacht.” The boat, which the company says is more like a fighter jet than a sailing yacht, is capable of traveling at a cruising speed of 35 knots. While that’s plenty brisk, it’s nothing compared to the 50 knots the boat can reach when its computer-controlled hydrofoils are fully engaged.

The Nemesis One is able to fly across water thanks to a truly forward-thinking hydrogen fuel cell-powered propulsion system, according to New Atlas . It also gets juice from a set of electric batteries, as well as roof-top solar panels that will provide up to 150kWh of energy. But the entire propulsion system is only responsible for 18 knots of speed. The rest comes from the yacht’s automated “Oceanwings” sail. The computer-operated wing automatically adjusts angle, camber and twist to account for wind and weather conditions and is 2.6 times more efficient than a traditional sail. But that’s not all on the tech front, as the boat is also capable of operating autonomously, with LiDAR making sure you don’t get into any trouble.

Onboard the Nemesis One  Nemesis Yachts

But state-of-the-art tech is not all the superyacht concept has to offer. This is no stripped-down racing vessel, after all. Measuring 332 feet long and 128 feet wide, the living and entertainment areas on the boat are downright palatial. Based on the renders, the quarters are designed to resemble those of a luxurious hotel for jet-setters. Interestingly, the boat’s “living modules” are detachable and can be swapped out depending on the circumstances. They can also be removed entirely if you do, in fact, want to turn the catamaran into a straightforward speed machine.

Nemesis Yachts

As with most concepts, especially the most exciting, there’s no release information for the Nemesis One. But, the boat maker did reveal that it is testing out a shrunk-down, 26-foot prototype, so don’t be surprised if some aspects of this boat become a reality sooner than later.

Bryan Hood is a digital staff writer at Robb Report. Before joining the magazine, he worked for the New York Post, Artinfo and New York magazine, where he covered everything from celebrity gossip to…

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Foiling and Hydrofoiling: Everything you need to know

A foiling International Moth dinghy. Photo: Christopher Ison / Alamy

What is foiling?

Although foiling or hydrofoiling feels like a recent revolution to take the world of watersports by storm, it is actually much older than many appreciate.

In terms of motorised waterborne craft, the first foiler was a motorboat designed and built by Italian inventor Enrico Forlanini in 1906.

It did, however, take quite a bit of time before foiling boats with sails took to the water, but even then many people might be surprised to learn that even in the 1970’s the foiling trimaran, Williwaw, covered over 20,000 sea miles in and around the South Pacific all on its foils.

It turns out the history of hyrofoiling goes back further than many think.

It was not until the early-2000s that foiling really started to take hold, with a  development dinghy class, the International Moth, leading the way.

Foiling boats

With huge amounts of interest in the 11ft Moth dinghy, foiling began to spread throughout the sport of sailing. And it was not long until hydrofoiling boats of all different shapes and sizes were taking the water.

Over time, some traditional classes converted to foiling – the A-Class and C-Class catamarans being examples. But more new boats were also designed specifically with hydrofoiling in mind.

In 2013 Emirates Team New Zealand built their 72ft America’s Cup catamaran to be a foiler, forcing their competition for the Cup, Oracle Team USA to convert their AC72 into a foiler to stay competitive – ultimately Oracle Team USA won the Cup in one of the biggest sporting comebacks of all time .

To date the America’s Cup has not looked back with the competition taking place in smaller hydrofoiling AC50 catamarans in 2017 and the newly conceived monohull foilers, the AC75 s, in 2021.

In 2021 the Olympics Games introduced the first ever foiling catamaran in the Nacra 17.

Foiling yachts

Offhsore, 90ft Ultime multihulls on their foils are competing to be the fastest to race around the globe and design houses across the globe are racing to create foiling yachts for the masses which could dramatically reduce cruising times from one destination to the other.

There are also many classes of yacht that are taking some of the lessons from fully foiling craft and putting them to use in a semi-foiling manner.

Here the biggest technical innovation is in the IMOCA60 class, which is famously used for the single handed non-stop round the world race, the Vendée Globe .

The latest couple of generations of IMOCA 60s have been build with huge, technologically complex foils to generate lift. These are powerful enough to lif the boats fully out of the water, but as yet the class rules do not allow for rudder foils which would stabilise flight and allow for full foiling.

Where sailing boats and yachts have, arguably led the way in the history of foiling over the past decade or so this has filtered down into a plethora of other watersports craft.

Although in the early days foiling was typically the preserve of elite sailors and watersports professionals, increasingly we have seen boats and boards designed to foil in the hands of the average sailor, surfer or windsurfer.

This race to bring the fun of foiling to beginners is continuing apace with beginner foiling boats, windsurfers, surfers etc. coming to the market every year.

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Sunreef Yachts Presents the World First Hydrofoil System for Luxury Open Catamarans

Catamarans offer several specific features that make them a perfect alternative for traditional yachts, e.g. a bigger living space (sometimes even twice as big as on a single-hull vessel), excellent stability and a very long cruising range. However, enthusiasts of motor vessels choose catamarans primarily for their high performance.

In order to meet needs and expectations of our customers, Sunreef’s naval architects team decided to develop a system of retractable hydrofoils that will enable luxurious Sunreef vessels to attain a maximum speed up to 70 knots and literally fly over the surface of water. Such a solution is the best choice for all those who want to fully exploit the potential offered by power boats.

Hydrofoils in catamarans are used to reduce drag that directly affects the speed of a vessel. A vessel fitted with hydrofoils is lifted out of the water which significantly decreases drag, consequently allowing for greater speeds. Additionally, due to excellent stability of catamarans (ensured by two independent hulls), a vessel is adequately balanced without the need to employ complicated stabilizing systems. As a result, both helmsmen and passengers are offered the ultimate comfort and safety even at considerable speeds (such a combination is not possible in case of standard single-hull vessels).

The first model fitted with hydrofoils will be the Sunreef 40 H – a 40-feet motor catamaran of an open type. A specialist in luxurious, custom-made, multi-hull vessels, the Sunreef Yachts shipyard is going to present a perfectly finished catamaran with sleek, sporty silhouette that will be the ideal choice for everyone who values perfect design and top performance.

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fulcrumspeedworks

*NOTE: Sales team will contact you with shipping rates.

WHAT IS IT?

The UFO is a simplistic modern hydrofoiling boat, that allows anyone to fly through the air, freeing the hull from draggy water. More stable than the International Moth -or even a child’s pram- with a simple rig, and a set of fully retractable hydrofoils, all for $11,500 USD the UFO makes flying attainable. Thousands less than it’s nearest competition.  Built in the United States in high volume and quality control, the UFO maintains a one-design philosophy, creating close and exciting racing on foils!

FLY WITH THE UFO

• Designed and built in the USA
• $11,500 USD
• Compatible and rewarding to all skill levels
• Lightweight for easy maneuverability
• Solid, nearly dent-proof, hull
• Unique patented hull and rig designs
• Stable on and above the water
• Small footprint for carefree storage and shipping
• Takeoff from about 8knts of wind
• Fast, fun, easy to control foiling

FUN FOR ALL AGES

The wand system controlling the foils, which can be set to fly very high, very low (even ‘no fly mode’) and all points in between. This means you can progressively add challenges to your UFO experience as you feel ready for them, from ‘beginner mode’ all the way to ‘extreme mode’. Additionally, the highly tunable sail can be set up to provide only the amount of power that your body type needs, and no excess. This means that the UFO is accessible and fun for sailors of all sizes, ages and skill levels. Merely set up the boat for your skill level and body type and go play around.

The UFO is very broadly applicable and has flown payloads from 70 pounds -a tiny kid- to 270 pounds -a tall grown man and a teenage boy-. The foil package just needs power to climb. Ultra light sailors have been caught on camera flying in 5 knots of breeze and the baseline for 225 pound sailors to take off is 10 knots. 270 flies in 12 knots of breeze.

SETUP AND BREAKDOWN

While the boat can be left on shore with everything in place, but the sail down, that doesn’t mean the UFO isn’t easy to put together or take apart. Quite the opposite. Simplicity begets simplicity and the boat is a cinch to put together and take apart.

MANAGEABILITY

Being small is it’s own reward when it comes to handling the boat through all sailing experiences. When you start to really push yourself learning to foil, there are good odds you’ll manage to capsize it. The UFO is easy to right from capsizes and even full “turtle” inversions. This last part is critical, because when catamarans are too heavy to right from turtle the only option is to make the mast float. This has the unintended downside of making the boat very likely to blow away from you. The UFO is designed to stay right alongside you in the event you are separated from the boat. Additionally, the boat possesses an uncommon “park” mode in which it will hold station of its own accord, apparently indefinitely without external input of any kind. The full benefits of that upside have not begun to be fully exploited.

FOILING AT ALL POINT OF SAIL

The Fulcrum design team strictly adhered to the axion “if there’s a point of sail (say, upwind or downwind) that it can’t always foil on, you can’t call it a foiler”. The design team achieved their goal and the UFO is a fully flying boat on all points of sail, which drastically increases its fun-factor.

At what points of sail does the UFO foil at?

The UFO fully foils at all points of sail. Upwind, downwind and reaching.  Additionally, you can set it to  not foil when you’re tired and it will do that as well, so you can get home easily. These two factors make the UFO uniquely good for learning to foil.

Who can fly the UFO?

Within reason, anyone.

UFO pilots have ranged from 8 years old to 72, from 90 pounds to 235. Young sailors do well sailing as pairs or with a middleweight to light adult. It’s rare that anyone on the fulcrum team conceives of a boat with a narrow niche in mind. Why bother? It’s a mistake in yacht design to design a boat for a narrow range of users, when for the most part people are diverse and the objective of one-design boats is to garner large fleets. That said, the boat is likely to be most satisfactory in all wind conditions in the hands of teens, small and medium men and all women. At the extreme low end of the weight range, sailors may find themselves overpowered and at the extreme high end, the wind speed required for takeoff is about two knots higher than average. UFOs have been sailed “two up” as well, though the above limits of weight range still apply to the sum of the two sailors weights.

What wind and waves can I fly a UFO in?

The UFO will sail in practically any wind condition. However, it’s important to remember that with all sailboats there are days that are great to sail in and days where you do something else.

While the UFO can at times with a skilled skipper take off in very low wind speeds, the baseline for reliable flight is around eight knots. Trying to squeeze enough power to fly out of too little wind is tiresome and in those circumstances, it’s best to do something else. In 8 knots and above, flying is magical and unforgettable. In under 8 knots, the UFO reverts to being a pleasant displacement catamaran and goes from being exciting and fast to relaxing and tactical. This is another benefit of being a catamaran.

Over the last six years the UFO has proven to be uniquely good at flying safely and consistently in very high windspeeds. In multi-class foiling regattas the UFO has proven to be the only foiler built to date that simply  loves  high windspeeds. In winds above 22 knots when other foiling boats make for shore, the UFO wants to keep playing. The upper wind limit is more a matter of taste and skill. UFOs have been sailed in 36 knots, but that requires a great deal of skill and focus.  The UFO rig having shared DNA with a windsurf rig seems to play a part in the boat’s remarkable ability to get a kick out of big wind. Since the upper wind limit on the UFO is so much higher, this makes the number of optimal days to fly a UFO (if skilled in sailing one) higher per year than with any other production foiling boat.

Most chop and wave conditions present no issue for a UFO set for the days’ conditions. After all, powered hydrofoils were first developed by various leading Navy’s as a means of smoothly flying over challenging sea-states. Choking up the ride height helps the UFO fly smoothly through the bottom of the wave pattern, undeterred. Rolling seas present even less issue, as the UFO will ride along them just like any other. Extremely tight and tall chop can be very annoying, which is not peculiar to the UFO.

Waves do effect baseline windspeeds to achieve takeoff. Imagine getting a plane to take off on a bumpy runway. This is true for all hydrofoil boats. In choppy water, ten to twelve knots can be necessary to achieve fully easy takeoffs. Some UFO sailors use aggressive kinetic techniques to overcome this and take off in choppy water and low wind.

Will I fly my first time out?

Most people do, but bear in mind that flying is a whole new experience and it takes some learning.

Conditions, setup and technique matter and if you use it incorrectly, you are likely to get some degree of incorrect results. That’s the challenge that the UFO is built to address. Over six years on the market and over 500 boats delivered, the UFO has proven to be the best and most reliable platform for ordinary sailors to reliably teach themselves foiling technique on.

What happens when I crash my UFO into something?

You’ll probably do some damage to it.

The UFO is built with durability as a core objective but it’s worth noting that the gulf between “Feather light under engineered ragged-edge high performance craft” and “literally indestructible” is extremely wide. The UFO represents neither of these extremes. Do not attempt your first flight inside a densely packed mooring field. Obstacles only make you better once you’ve mastered the basics.

How easy is it to rig a UFO?

Best in class, vs other foiling boats on the market. With that said, it’s not easier than doing nothing. Doing nothing is very easy! Putting a boat together is worthwhile but obviously involves effort.

The current cartop to launched speed record is roughly 15 minutes. Socket the mast together. Attach the boom and stays in one go. Step the rig. Flip the boat on its side, insert the foils, right the boat, hoist the sail and launch. Complexity is best avoided.

Leaving the UFO on a dock or a beach with the rig in and the foils simply in the “up” position, achieves an ease of daily use on par with any light beach cat. To go foiling all you need to do is hoist the sail with the halyard, clip the sail to the boom and attach the downhaul line and you’re ready to launch. This brings setup and breakdown to a matter of five minutes or less.

How do I launch and land a UFO?

Far far far more easily than any other foiling boat on the market.

Because the UFO is a very small catamaran, while floating the hulls float relatively deep in the water and create lateral resistance, like the hulls on a hobie 16 or hobie wave. This means that it can sail upwind without a daggerboard of any kind in the water. This is not the case with non-catamaran foilers. The rudder is outfitted with a friction brake and a down-halyard to allow its depth to vary and allow steering in shallow water. So from 16 inches of water and beyond, you can sail away from and back to shore reliably.

Because the UFO’s forward foil assembly is located  in front of  the mast, the UFO can tack and gybe while the forward foil is fully withdrawn from the water. This is unique. It allows the UFO to navigate reliably in the period between launching or landing and flying. The benefits for usability and safety cannot be overstated.

Once you’ve got to deep enough water, lower your foils fully and fly away!

That’s if you’re using a dolly.

If you aren’t using a dolly, the UFO has even more party tricks to show off. Since the foils withdraw to above the waterline of the hull, the hull can be beached or slid up onto a dock float or boat deck without any risk to damaging the foils. The UFO is a boat that’s eager to go sailing.

Can I easily cartop a UFO?

At this hull weight, the boat is very easy to put on top of a car, and its flat bottoms allow it to be strapped down hard with no drama. The other components of the boat collapse down to the point of easily fitting in a standard hatchback.

Where can I store my UFO?

Anywhere you can carry it to. Anywhere it fits.

Behind couches, under beds, under porches, in basements, inside larger boats, chained to apartment fire escapes, hanging in garages. Anywhere it can go that’s convenient for your lifestyle is a good place for it to go.

Why does X look like Y? Surely it would be better to make it like Z.

Just trust us.

If you’ve thought of it, we’ve weighed the pros and cons and its been included or excluded for good reason. Creating a boat that can be produced at an affordable price, for a wide range of sailors with a maximum quantity of accessible performance is an extremely hard target to hit. The UFO meets all of its objectives and does so by blatantly ignoring a few conventions and norms. You simply don’t make an omelet without breaking eggs.

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Designed with a singular vision...To deliver unmatched performance and efficiency!

Introducing the insetta 35ifc  – the bar has been raised.

The Insetta 35IFC was designed with a singular vision… to be the best-performing center console sport fishing catamaran in its class.  Enjoy unmatched performance, range, and efficiency thanks to the 35IFC’s hydrofoil-assisted design.

In addition to being the best High-Performance Fishing Catamaran in its class, it also provides a smoother and dryer ride in the rough stuff!

This boat was designed for people who fish, by people who fish!  From its integrated livewells to its cavernous coffin boxes, level open deck layout, massive insulated storage and so much more, this boat was designed for maximum range and fishability!

Here’s what our customers have to say: “Holy crap do I love my 35 IFC with the Merc 300 V8’s on the back. We ran her down to Key Largo the other day, snorkeled all day, got lunch at Shipwrecks Bar and Grill, and ran back. Cruised between 40 and 45 mph, mostly around 42. So smooth it’s nuts. Burned maaaayyybe 40 gallons for the whole day. As we cruised the dashboard was telling us between 1.7 and 1.8 mpg, but I’m pretty sure we cruised more than 40 miles and burned between 35 and 40 gallons, no more. So… suffice it to say that you guys have absolutely crushed it and changed the game here. Fantastic work”! – Alan, Hull #4

Check out our FAQ’s section below for more about the Insetta 35 with  IFC!

Specifications

Length Overall

Maximum Beam

Maximum Draft

Fuel Capacity

Cruise Speed

Cruise Miles Per Gallon (MPG)

Over 850 miles*

Cruise Range

Standard Features

Standard “Insetta White” Gelcoat Molded in Diamond Non-Skid Tackle Storage Stbd Side Tackle Storage Port Side 19 Gallon Freshwater Washdown/Shower 5 x In Deck Storage Hatch 2 x In Deck Macerated Fish Boxes 625 Qt Insulated Coffin Box, Split Boxes Walk through Transom Access (Door Optional) Two 36 gallon Integrated Transom Livewells Fresh and Raw Water Washdown 34 Rod Holders (gunnels and coffin box) 7 Stainless Gemlux Pull-Up Cleats LED Navigation Lights Boarding Ladder

Recessed Stainless Bow Rail

Helm / Console

Fiberglass Hardtop with Powder Coated Aluminum Supports Tempered Safety Glass Enclosure for Console 6 Integral Rod Holders Built into Rear Support Molded Fiberglass Leaning Post with Rear Face Seating and cooler 3 Wide Helm Seats 6 S/S Cup Holders Storage Box and Rigging Tray on Rear Facing Seat Storage Drawers Under Helm Seats 165 Qt Leaning Post Ice Box Located Under Rear Face Seats

Base Upholstery

Equipment and Electronics

3 Part Internal Foil System

3 Pump Capacity Sea Chest with Dual Livewell Pumps & Raw Water Feed

4 1100 GPH Bilge Pumps (2 in Each Sponson)

Standard Capacities

490 gallon fuel capacity.

625 Qt Insulated Coffin Box with Divider

165 Qt Leaning Post Ice box

Dual 36 Gallon Livewells

19 Gallon Freshwater

Frequently Asked Questions

IFC is Insetta Boatwork's Internal Foiling System.

You can expect a significant increase in cruise speed; Improved handling and stability in rough conditions; Better acceleration; A boat that is less affected by increased payload; A 20-40% increase in fuel efficiency; and a 20-40% further cruise range! Additionally, the IFC technology will also provide a drier ride in choppy conditions and Provide for more responsiveness when turning at speed!

The system is a fixed setup, there is nothing to operate and there are zero moving parts.

The IFC Technology in effect smooths out rough seas by allowing the boat to run from wave crest to wave crest at a relatively smooth and stable attitude. The IFC System creates lift which help to in effect “Carry” the hull higher in the water. The system acts as a set of wings carrying the boat at speed, keeping the hull from having to follow each wave across its entire contour. In other words the surface of the waves have less effect on the hull as the IFC system is lifting the boat. Additionally, the aerodynamic lift created by the catamaran hulls creates even more lift at the bow of the boat, keeping the nose high and preventing the “slamming” or sneezing found in other catamaran hulls.

No, you don’t. The foils are flush mounted to the bottom of the keels of each sponson (as well as up in the tunnel.) At its centerline the main foil of the IFC system is only slightly lower than the keel line. The boat will easily load onto a standard catamaran trailer. There is no big contraption hanging way down under the boat.

Remember, the foils are INTERNAL to the tunnel. At its lowest point the main foil is only slightly lower than the hull and is higher than the props. Because of this the odds of striking the foils are extremely low. The boat is designed to be lifted by the foil. The structural integrity of the foil system is such that the weight of the boat could be supported many times over by the foil. As such, if you did somehow manage to strike the foil on something EXTREMELY SUBSTANTIAL, like a stone shoal, the likely outcome is that you may (in a very worst case scenario) bend or break a foil wing. If that were to happen, you could still operate the boat to port with the remaining foils. The IFC foils are made from a very high-grade stainless steel and designed to meet or exceed relevant guidelines for impact and strength.

As water travels through the tunnel and around the foil, a tremendous vortex is created. This force keeps most debris from being trapped in the tunnel or around the foil. Between the pressure of the air moving through the tunnel, and the vortex created in the water, the tunnel and foils will stay clean and clear.

The outboards of the 35 IFC are mounted on a slight outward angle to place the propellers properly to maximize the thrust and flow efficiency created as the water travels through the tunnel and around the foils. This mounting also helps the boat to lean into a corner, much like a monohull.

Firstly, we’d ask, “Why would you want to?” But the short answer is no. IFC is an integrated system that is integral to the design of the boat.

The short answer is that boats with technology similar to IFC have been in use for many years, but not in the recreational market. Commercial and Military applications are quite prevalent. The initial design of a hull and system like this is quite complex and can be cost prohibitive. We at Insetta feel the gains in efficiency, speed, range and ride quality far outweigh the initial design and build cost.

Upon deciding to build a foiling Cat, Insetta assembled a team of naval Architects and Marine Engineers to refine an existing and proven design. Using their own state of the art construction techniques, Insetta brought an application specific version to the fiberglass Center Console market.

Optional Features

Customizable Garmin or Simrad Electronics JL Audio 10 Speaker Stereo System Flush Mount Acrylic Helm Bow Shade Custom Gelcoat or Combination of Colors Deluxe Upholstery Third Center Livewell Under Rear Facing Seat 40 gallon Seadek Flooring or Flexiteek Decking Additional Gunnel Rod Holders (18 standard) Recessed Wireless Phone Chargers Swivel Base Rod Holders Outlets for Electric Reels Additional Drink Holders on Leaning Post, Coffin Box, Gunnels and Helm Forward/Rear/Side Spreader Lights T-Top Outrigger Bases/Poles Gemlux Electric Head With 19 Gallon Blackwater Holding Tank Freshwater Sink and Vanity Inside Console Underwater Lights Heavy Duty Dive Ladder LED Under Gunnel Lighting On-Board Battery Charger Windlass Custom Aluminum Trailer Cockpit Table/Bow Table

Why did Insetta Boatworks decide to build a boat with IFC?

For decades, Hydrofoil power boats have proven to be the most efficient craft for a variety of offshore operations.

While pursuing a B.S. in physics in 1960, Victor Insetta was employed doing anti-submarine research that utilized high speed Deep-V patrol boats equipped with hydrofoils. Their ability to pursue submarines at high speed, operate safely offshore, and, being foil borne: allowed their hull to run clear of the water avoiding direct hits from torpedoes. Decades later, Vic and his family rode comfortably on hydrofoil ferries in Italy, flying over white capped waves in the bay of Naples.

In 2017, The Insetta 45 was chosen to be the official chase boat of the America’s cup! Four 45’ Insetta’s catamarans were shipped to Bermuda to assist at various cup events. Sailboats, competing from several countries, were catamarans with hydrofoils ! The Insetta 45’s ran parallel to these “foiling sail cats” to assist with TV coverage. The sailing cats were traveling at speeds approaching 50 mph, 2 ½ times the wind speed . Efficient … you bet . They could also turn on a dime at over 40 mph…

It became obvious: that a foiling cat would make a great offshore outboard power boat… Many foil power boat designs in the past, had wide foils that stuck out the sides, increasing their beam and draft. It made them difficult to dock, and they couldn’t operate in shallow waters. Joel Shine (chief operating officer) of Insetta Boatworks found a catamaran design that had hydrofoils mounted in the tunnel, (that location between the tunnel walls actually improves their efficiency), and does not add to its draft. Further improvements could be added by using our ultra-light high strength infused composite construction.

Joel, Vic and our technical staff reviewed the foiling cat’s initial specifications and performance data, and then sea trialed two foiling cats with internal hydrofoils. Our staff includes a second physicist and pilot… Glen Dobbs. We are all active boaters and we determined we would build our version of a foiling outboard powered cat. We contacted a Naval architect, who designed several successful foiling power cats . He is now a member of our technical staff.

Our 35 “foiling cat” design has set the standard for Foil-Assisted Sportfishing boats. The hull, foils, materials, and engines are synergistically combined, to provide: unrivaled high-speed cruising efficiency , and provide safe offshore handling, with unimpeded shallow water operation, including beaching, without foils or props contacting the bottom.

Insetta 35IFC

The premier internal foiling catamaran.

Integrated 36 Gallon Livewells & 625 QT Coffin Box Standard

Designed to fish.

850+ Mile Range!

Best in Class MPG, Smoother/Dryer Ride!

Performance.

Click the button below to contact or email us for more info!

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Winged ships: Soviet hydrofoils forgotten and reborn

Meteor 120R, 2021.

The ‘Raketa’ (“Rocket”) was the first prototype of Soviet hydrofoil ships. It made its maiden voyage on August 25, 1957, and went from Gorky (now Nizhny Novgorod, 400 kilometers north-east of Moscow) to Kazan (720 kilometers east of Moscow) down the Volga River. The ‘Raketa’ covered these 420 kilometers in seven hours - reaching speeds of up to 60 km/h, which was very fast for a river ship. The ships of this type have special foils underneath and this type of design significantly reduces the water resistance. It gives the hydrofoils their main advantage - very high speed. Also, it vastly reduces bumpiness (oscillation) for passengers.

The 'Raketa' on the Moscow channel in 1967.

The foils can be constructed in different ways: For example, ‘Raketa’ had U-shaped shallow-submerged ones. On its first voyage, the 27-meter-long hydrofoil had 30 passengers, even though its capacity was for 64 people. And the ‘Raketa’ was a success: 300 ships were made in total and it was so popular that even the next hydrofoil models were often commonly called ‘Raketa’.

‘Meteor’, the most widespread Soviet hydrofoil, 1968.

New Soviet hydrofoil models appeared thanks to a team of engineers headed by a ship constructor and innovator named Rostislav Alexeyev. Soon after the triumph of ‘Raketa’, they designed a hydrofoil called ‘Meteor’. It was bigger than ‘Raketa’, had a higher max speed of 77 km/h and could carry up to 123 people. The ‘Meteor’ was the most widespread Soviet hydrofoil - 400 ships were produced in total. They were exported to Germany, Egypt, Greece and other countries. Some ‘Meteors’ are still in use in Siberia, in the Far East and in St. Petersburg, where they are used for touristic cruises to Peterhof (23 kilometers south-west of St. Petersburg) and Kronshtadt (30 kilometers north-west of St. Petersburg). 

Strela-1 ship.

Some Soviet hydrofoils were designed to operate in sea waters. One of them was the ‘Strela’ (“Arrow”). Two ships of this modification appeared in 1961 and were used in the Black Sea. ‘Strela’ had two V-shaped semi-submerged foils - a special construction for the sea. It helped these ships travel up to 70 km/h even in rough seas (with waves up to two meters high). The ‘Strela’ could carry up to 90 passengers on board.

Volga ship, 1972.

The ‘Volga’ hydrofoil holiday cruiser was universal: it could be used both in shallow-sea waters and on rivers and lakes. The ‘Volga’ was created in the early 1960s. At just 8.5 meters in length, the cruiser was really small and could only carry 6 people, including the captain. It also had a removable awning instead of a roof. The ‘Volga’ had T-shaped semi-submerged foils and a max speed of 60 km/h. Later, the cruiser was remodified with V-shaped foils that helped it withstand stronger waves.

‘Burevestnik’ river ship, 1968.

Rostislav Alexeyev always wanted his ships to be faster. The diesel engines limited the speed, so he decided to try to equip a hydrofoil with a gas-turbine motor taken from a plane. This type of engine is lighter and gives more power than a diesel one. One of the results of this experiment was the ‘Burevestnik’ (“Petrel”) river ship. It also had two water jets instead of a propeller. These construction changes helped the hydrofoil reach a speed of 95 km/h. The ‘Burevestnik’ was 43 meters long and could carry 150 passengers.

‘Tayfun’ hydrofoil, 1969.

The ‘Tayfun’ (“Typhoon”) hydrofoil wasn’t just a usual passenger boat. It was created in St. Petersburg as a part of a military hydrofoil project to set up some experiments. ‘Tayfun’ was finished in 1969 and was used both in river and sea waters in the 1970s. It had innovative T-formed fully-submerged foils with autopilot controlled flaps. ‘Tayfun’ could reach speeds of up to 83 km/h and withstand rough seas. It had a maximum capacity of 98 passengers and was 31 meters long. It turned out to be efficient, but never went into mass production, because its designers didn't consider it to be a self-sufficient project: it had been initially created for experiments in the development of a military hydrofoil called ‘Uragan’ (“Hurricane”). 

There were several types of military hydrofoils like coast guard motor boats and a missile-carrying ship with the code name 1240 ‘Uragan’ (“Hurricane”). The military ship was built between 1972-1976 and was in service in Crimea between 1979-1990. It had a length of 56.6 meters and a standard weight of 342 tons (while the ‘Meteor’ weighed just 36.6 tons). The foils of the ‘Uragan’ were fully-submerged and autopilot controlled. It was possible to raise the foils up, so they didn’t touch water. In this mode, the ‘Uragan’ could travel in high seas with waves up to six meters high. In calm seas, the hydrofoil ship could reach a max speed of 111 km/h. It was operated by a crew of 34 people and armed with anti-ship cruise missiles and a guided missile defence installation. Unfortunately, only one was ever made, as it turned out to be a very complicated and costly project.

Project 23160 SEC "Comet 120M".

After the fall of the USSR, hydrofoil construction was halted, but recently, the development of these ships has, once again, resumed. In 2013, the construction of a modern Russian hydrofoil called ‘Kometa 120M’ (“Comet 120M”) began in Rybinsk (260 kilometres north-east of Moscow). It was finished and sent for testing to Crimea in 2017. The ‘Kometa 120M’ is constructed for sea voyages, where it can travel at speeds of up to 65 km/h. The hydrofoil looks more like a spaceship and has an autopilot system for its foils. The new ship is 35.2 meters long and has a maximum capacity of 120 passengers.

Hydrofoil vessel "Valdai".

Next, a hydrofoil modification called ‘Valdai 45R’ was built in 2017. It was designed for full-flowing rivers. It may become very helpful in the northern regions with a lack of roads. This new hydrofoil isn’t very big: it’s just 21.3 meters long, needs only two crew members and a maximum capacity of 45 people. It can travel at speeds of up to 65 km/h. Several ‘Valdai 45R’ ships are already in operation on the Ob, Irtysh and Volga rivers.

‘Tsiklon 250M’.

There’s also a huge sea hydrofoil called ‘Tsiklon 250M’ (“Cyclone 250M”) in the project stage. It’s a double-decker ship equipped with airliner-type seats. It has a gas-turbine motor and an unusual system of small foils. The design allows the ‘Tsiklon 250M’ to gain speeds of up to 101 km/h. The ship is 46 meters long and has a maximum capacity of 300 passengers - more than any other Russian or Soviet hydrofoil ship.

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F1x hydrofoils

Ultra-modern, lighter = better, craftsmanship, f1x hydrofoils - design.

Since 2014 the A-Class with our design hydrofoils is the founder of the so-called Z-foil configuration.

Because both foils are inserted downwards, a V-shape is created under water. The A-cat flies above the water on this created lift surface.

The latest generation of Z-foils of the DNA F1x is a design by the designers of Emirates Team New Zealand (ETNZ) and Glenn Ashby .

We build your new foiling boat!

Material & technology.

Base material: All F1x hydrofoils are made of carbon pre-preg. Thanks to our unique ‘one-shot’ production process, we manufacture all our continuous fiber foils, cured under vacuum in our 6.5 x 2.20 meter Autoclave.

The specially developed production method creates a hydrofoil that cures in one go, without any glue joints and including internal stiffening ribs. The result is a super-strong hydrofoil that is as light as possible. All foils are finished with high-quality paint finish. Color of your choice.

Our automated pre-preg cutting machine from the Zünd brand prepares the laminates with high precision. A five-axis milling machine with a working range of 5.5 x 2.5 x 2 meters molds the required tooling fully automatically. All of this in-house.

CHARACTERISTICS F1x HYDROFOIL

The production of the F1x hydrofoils for the A-cat is entirely in the hands of DNA Performance Sailing. We are constantly working on the further development of this super fast foiling catamaran. Besides the latest version DNA F1x, we now also have the DNA F1 Vintage, for the non-foiling group A-class sailors.

Depth: 1.37 m Widest point: 0.16 m Smallest point: 0.05 m Design: Emirates Team New Zealand and Glenn Ashby .

The above specifications refer to the daggerboard foils.

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Sailing at the 2024 Olympics: What to know, rules, schedule

Here's all the information you need to know about sailing, which returns to paris this summer at the 2024 olympics., by logan reardon • published june 26, 2024.

One of the oldest Olympic sports is returning to its roots at the 2024 Summer Games .

Sailing made its debut as an Olympic event at the 1900 Games , which were held in ... Paris . France won the most sailing medals that year, and the sport has been a mainstay ever since.

Now, with the Olympics returning to Paris , sailing will again be in the spotlight this summer. Here's all the info you need to know about the sport:

What is sailing?

Sailing is the art of moving a boat using only waves and the wind. While it used to be the way that people traveled and traded, now it's mainly used for sporting and leisure.

2024 Paris Olympics: See dates, sports, how to watch and more

Here are the rules for the 2024 Olympics in Paris

Get to know Team USA Olympians ahead of the 2024 Paris Olympics

How does sailing work at the olympics.

There are 10 different sailing events that will be contested at the 2024 Olympics, with medals handed out for each competition. Here's a brief look at each:

Men's events

IQFoil: One person windsurfing where the athlete stands up and guides the single sail.

Formula Kite: One person kitesurfing featuring a foil kite and a board with a hydrofoil.

ILCA 7: One person using a standard rig (singlehanded dinghy).

49er: Two people, one at the helm making tactical decisions and steering and one doing most of the sail control.

Women's events

IQFoil: Same as the men's event.

Formula Kite: Same as the men's event.

ICLA 6: Same as the men's event with a smaller rig.

49erFX: Same as the men's event with a slightly different rig.

Mixed events

470: Two people (one man, one woman) guiding a 470 cm boat.

Nacra 17: Two people (one man, one woman) using a performance catamaran.

Where is sailing being held at the 2024 Olympics?

All sailing events for the 2024 Olympics will be held at Marseille Marina . The venue is located in southern France on the Gulf of Lion , which is part of the Mediterranean Sea.

What is the schedule for sailing at the 2024 Olympics?

Sailing events will take place from July 28 through Aug. 8 , with series races and medal races taking place each day. Here's a day-by-day breakdown:

July 28: Men's and women's IQFoil (series races), men's 49er (series races), women's 49erFX (series races)

July 29: Men's and women's IQFoil (series races), men's 49er (series races), women's 49erFX (series races)

July 30: Men's and women's IQFoil (series races), men's 49er (series races), women's 49erFX (series races)

July 31: Men's 49er (series races), women's 49erFX (series races)

Aug. 1: Men's and women's IQFoil (series races), men's 49er (medal race), women's 49erFX (medal race), men's ICLA 7 (series races), women's ICLA 6 (series races)

Aug. 2: Men's and women's IQFoil (medal races), men's ICLA 7 (series races), women's ICLA 6 (series races), mixed 470 (series races)

Aug. 3: Men's ICLA 7 (series races), women's ICLA 6 (series races), mixed 470 (series races), mixed Nacra 17 (series races)

Aug. 4: Men's and women's Formula Kite (series races), men's ICLA 7 (series races), women's ICLA 6 (series races), mixed 470 (series races), mixed Nacra 17 (series races)

Aug. 5: Men's and women's Formula Kite (series races), men's ICLA 7 (series races), women's ICLA 6 (series races), mixed 470 (series races), mixed Nacra 17 (series races)

Aug. 6: Men's and women's Formula Kite (series races), men's ICLA 7 (medal race), women's ICLA 6 (medal race), mixed 470 (series races), mixed Nacra 17 (series races)

Aug. 7: Men's and women's Formula Kite (series races), mixed 470 (medal race), mixed Nacra 17 (medal race)

Aug. 8: Men's and women's Formula Kite (medal races)

What countries are the best at sailing?

When it comes to sailing, two nations are traditionally dominant: Great Britain and the United States.

Great Britain leads all nations in sailing gold medals (31) and total medals (64), while Team USA has the most silver medals (23) and second-most total medals (61).

Norway is third in gold medals with 17, trailing only Great Britain and the U.S. France, meanwhile, is third in total medals with 49.

In recent years, Great Britain has only gotten better at sailing. The country has won the most sailing medals at five of the last six Olympics, only losing out to Australia in 2012. The Brits won three golds and five total medals at the 2020 Tokyo Olympics, while the U.S. was shut out.

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The Candela C-8 electric hydrofoil crossed the Baltic Sea within 24 hours and returned to its home port in the same time.

The Candela C-8 on a record run.

(Image: Candela Boats)

• Oliver Bünte

The Swedish boatbuilding company Candela has set a world record by becoming the first electric boat to cross the Baltic Sea in 24 hours with its Candela C-8 electric hydrofoil. The electric boat even managed to return within the same day on Thursday.

The record-breaking boat is the latest version of the Candela C-8 electrified hydrofoil boat, which lifts itself out of the water at a certain speed and then glides over the water on underwater hydrofoils, thereby achieving a high level of energy efficiency. Designed as a leisure boat, the electric vessel was unmodified and used a battery from the Swedish electric car manufacturer Polestar .

The record journey began at 6 a.m. in Frihamn near Stockholm in Sweden. The C-8 reached Mariehamn, the capital of the Åland Islands, an autonomous region of Finland, at around midday.

Before that, however, a loading stop had to be made in Kapellskär. A mobile 40 kW charging station from Kempower was used for this. It was connected to the power grid in the port. At the destination, Mariehamn in Finland, the battery was then charged in the town's marina. A three-phase socket was used for this. In the evening at around 6 p.m., the C-8 set off for Sweden again and reached its home port in Frihamn at 11.30 p.m. in dense fog. Before that, the hydrofoil boat made another loading stop in Kapellskär.

No "range anxiety"

By Candela's own admission, she had no "range anxiety". Three loading stops were enough to cover the distance of around 150 nautical miles. The petrol-powered support boat, on the other hand, had to be refueled six times, resulting in significantly higher operating costs. Gasoline was refueled for a total of 750 euros. In contrast, the C-8's electricity costs for 213 kWh amounted to around 40 to 50 euros.

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Das Video zeigt, wie die Candela C-8 von Schweden nach Finnland die Ostsee überquert.

Candela wanted to use the trip to show that the disadvantage of electric boats, their shorter range, can be compensated for by technology. Conventional boat hulls consume significantly more energy. However, the Candela C-8's hydrofoil technology lifts the hull out of the water, creating less resistance and allowing the boat to travel faster.

Candela has already demonstrated the performance of its C-8 electric boat on several occasions. In 2023, for example, the company set a distance record of 420 nautical miles within 24 hours . Previously, the record had been 79 nautical miles within 20 hours.

Elektro-Schnellboot Voltari 260: Von Florida zu den Bahamas mit einer Ladung

Classic look hydrofoiling electric boat debuts in Moscow

A team in Russia has developed this sleek hydrofoiling electric boat with a retro-tech classic runabout look, both inside and out.

The boat is called the Molniya – Russian for ‘lightning’ – and uses fixed surface piercing (SP) foils rather than the retractable inverted-T fully submerged (FS) type on boats like the Candela 7 .

The Molniya prototype was built by Artem Markov and a small team he assembled in Moscow. Markov is a graduate of the Moscow Automobile and Road Construction Institute, where he was part of their Formula MADI electric car racing team that competed against other universities from around the world.

Hydrofoiling electric boat idea started in 2016

Like many other electric boat developers he is also a long time sailor and says “ I have never been able to understand what is the beauty of going on motor boats with a lot of vibration and noise. So, I decided I wanted to find a way to transfer the silence and comfort of a sailing yacht to a boat. The idea came to me in 2016, and from that moment I started working on the project .”

He is a big fan of the work that the team at Candela has been doing, and is well versed in their reasonings of why hydrofoiling is the way to reduce drag and increase efficiency and comfort. So he knew foiling was the way to go and began to design his dream boat.

It is one thing to know exactly what one wants, but b udget realities quite often make inventors adapt. So he found a classic fibreglass-and-aluminum hull and went to work redesigning and converting it. The team had to strengthen and reinforce the hull to handle the stresses from the front foils. At the stern of the boat they designed  protruding half-wings that would help lift the boat onto those front SP foils as it accelerated.

80kW motor mounted to stern drive unit 

That gives the 8.9 m • 29 ft boat a cruising speed of about 20 kts • 37 km/h and maximum speed of 36 kts • 66km/h. As for range, the Molniya can go for 135 Nautical miles at 5 kts, 17 Nm at 25 kts and 20 Nm at the top speed. 

For the battery, they have taken stock lithium-ion cells and developed the modules themselves. The size is 160kW and there are some creative and useful ideas incorporated into the charging and battery management systems. One is the ability to connect a warning system to a GPS route so if you are driving at a speed that is taking yo u beyond range of getting back to shore the motor will automatically slow down. When you do get back, a full 0-100% charge takes 3.5 hours and you can check status through SMS.

One of the intriguing things about the Molniya is that all of the electric boat technology has been incorporated into a striking overall retro look. The dashboard looks like it might have been taken from a 1950s luxury car catalogue, but of course the actual meters are all digital. The interior of the entire boat harkens back to an earlier day, appearing ready to whisk 6 passengers off to a swing era supper club.

From prototype to production

Having built and tested the prototype from an existing hull, the goal of Markov and the team is to move to production mode and use the materials he always envisioned in his dream boat. While the aluminum and fibreglass of the original have been useful for testing, speed and range will benefit from materials like much lighter carbon-kevlar.

The adapted stern drive was useful for proving the hydrofoiling electric boat concept, but all of the designers and engineers are keen to see the improved efficiency they will get from a motor, drive and battery system they have designed from scratch for the Molniya. As for the foils themselves, the production model will use lighter, thinner composites instead of stainless steel.

Obviously the spring and summer of 2020 has not provided the best opportunities to introduce the prototype at boat shows and stir up interest with consumers, the trade or investors. It seems, though that the Molniya is the type of boat that should appeal to peopl looking for the same thing Artem wanted for himself: a classic motor boat experience but one that is quiet, odour free…and smooth sailing.

You can find out more on the Molniya website, lightning-foil.com .

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• New French electric rim motor now taking pre-orders
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