cal 24 sailboat review

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Review of cal 24

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

CentreBoard

The cal 24 is equipped with a centreboard keel. A centreboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.

The boat can enter even shallow marinas as the draft is just about 0.76 - 0.86 meter (2.49 - 2.79 ft) dependent on the load.

An outboard motor is often used on this boat. In that case the boat will typically require a power of 3 - 4 hp, alternatively 74 - 89 lbs thrust if you prefer an electrical motor. Electric outboards are becoming popular for sailboat owners who want clean instant power with less noise and no exhaust fumes.

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 5.9 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is Displacement Length Ratio?

What is SA/D (Sail Area Displacement ratio)?

Maintenance

Are your sails worn out? You might find your next sail here: Sails for Sale

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

We are always looking for new photos. If you can contribute with photos for cal 24 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us . Criticism helps us to improve.

The Cal 24 is a 24.39ft fractional sloop designed by Lapworth and built in fiberglass by Jensen Marine/Cal Boats between 1958 and 1965.

184 units have been built..

The Cal 24 is a light sailboat which is a high performer. It is reasonably stable / stiff and has a low righting capability if capsized. It is best suited as a racing boat.

Cal 24 for sale elsewhere on the web:

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The Best Sailboats for the High Seas?

At the St. Petersburg Boat Show month last month, I had the pleasure of seeing delivery skipper and author John Kretschmers presentation on what he called sailboats for a serious ocean. I have reservations about any ideal boat list, but Kretschmer, who reviews boats for Sail Magazine and whose most recent book Sailing a Serious Ocean is available in our online bookstore , has the ideal background for this sort of work, and a list like this is undeniably helpful for wannabe cruisers who need a place to start their search.

I certainly wouldnt limit my search to boats on such a list, but by paying careful attention to the pros and cons of each, you can find something that suits your own aspirations.

Here are the boats Kretschmer suggests: Contessa 32, Pacific Seacraft 34, Pretorien 35, Cape Dory/Robinhood 36, Valiant/Esprit 37, Prout Snowgoose 37, Alajuela 38, Privelege 39, Freya 39, Passport 40, Caliber 40, Baba 40, Hallberg Rassy 42, Taswell 43, Hylas 44, Norseman 447, Beneteau 456, Outbound 44, Hylas 46, Kaufman 47, Tayana 48, Hylas 49, Amel Maramu 53, and the Sundeer 60/64. For a brief capsule summary of each, be sure to check out his website.

The list is hardly definitive. There are plenty of good boats that arent featured, and some of these would be ill-matched for the wrong sailor-Kretschmer clearly pointed this out during his talk. I like how the list presents a good cross-section of the various shapes and sizes for a boat in this category. For example, Kretschmer includes the Prout Snowgoose and Steve Dashews Sundeer 60, boats that, notwithstanding their successful record at sea, fill an outlying niche.

If I were going to expand the list, one of the heavier-displacement microcruisers like those I blogged about would be a nice addition. Although I would be wary of promoting even the most formidable of this breed as well-suited for a serious ocean, John Neale of Mahina Tiare Expeditions includes one of them, the Dana 24, on his own list of recommend cruising boats . Neales much broader list of boats is accompanied by a very helpful discussion of design elements to consider.

What got me thinking about formidable cruising boats was our series of reports o n sailboat construction , focusing specifically on structural details. Although there are plenty of excellent coastal cruisers on the market, once you start talking about offshore duty, scan’tlings (the dimensions for structural components) take on far more importance.

A few years ago we touched on this subject in our Mailport section, encouraging readers to suggest their own nominees for a list of what we called at the time, tough boats, vessels that were built to take a beating, requiring minimal care and upkeep.

Here are some of the boats that were suggested from our readers: Mariner 36, Cal 34, Morgan 43, Swan 43, Bermuda 40, Island Packet 26, Mariner 47, LeComte Northeast 38, Westsail 32, Dana 24, J/35, and the CSY 44.

Id be interested in hearing of other nominees for this list, or other good resources for sailors looking for a short list of good offshore boats.

For those who are frustrated to find that their own ideal boat isn’t on anybodys list, I wouldnt be too miffed. The best line Ive heard in a while on this topic came from Steve Callahan, the author of the survival classic Adrift , who gave a presentation at the Port Townsend Wooden Boat Show . When I asked Steve, who has sailed extensively on both multihulls and monohulls, what type of boat he preferred, he said, quite seriously. Well, at the end of the day, the best cruising boat is the one that you are on.

RELATED ARTICLES MORE FROM AUTHOR

On watch: this 60-year-old hinckley pilot 35 is also a working girl.

Interesting list. I am fond of Hylas of which you chose three models. However, I am suspect of their yard and construction techniques and do not have confidence that they are as strong as they are beautiful. Only one Hallberg-Rassy was selected, which is a far more robust and dry sailing boat than the Hylas. Passports make a good boat as does Cape Dory and several others on your list. Didn’t four sailors die on a Beneteau in 2018? Over all it is a decent list.

https://metro.co.uk/2018/04/25/last-pictures-doomed-yacht-cheeki-rafiki-sank-killing-four-british-sailors-7497805/

I believe this is the accident you’re talking about in which a Beneteau and it’s bolted on keel parted company.

Almost all of the sailing clubs in San Diego rent Beneteaus out. They are a decent coastal sailboat. I have a couple friends who have even made the crossing to Maui in them..not me, not ever. I consider them a living room boat. Having said that, I am certainly no expert so its just my opinion. If I am crossing an ocean I want a capable kindly strong boat with redundancy built into critical systems.

Curious to think what people think about the early 70s Swan 43 as a cruising boat for a couple with occasional guests for a round the world trip? I have an S&S 30 which is too small but I do have some bias towards their designs. Add a watermaker and some power generation and off you go… Any thoughts?

Are Motor Sailors like the Nauticats or Fishers ocean worthy ( if their pilot house windows and sliding doors are lifeboatified ? )

Walt Schulz’s Shannon 43 is a beautiful, sea kindly, comfortable and sturdy bluewater boat. Walt had not only the ICW and Bahamas in mind when he designed and built 52 of them. He designed for ocean cruising. He believes his boats should outlive him and still sailing for generations. We sailed the Chesapeake, Bahamas, Caribbean and Pacific to Australia on a Shannon 43 ketch. She took great care of us and is still turning heads.

Great article! John Kretchmer is one of my fave modern day sailors. While there is only one Crealock design on John’s list, and the Dana is added on John Neale’s list, I was surprised not to see a Crealock/ Pacific Seacraft 37 mentioned. But there are so many great serious off shore boats, it’s hard to narrow it down to 10. Here’s a few to think about. Cape George Cutter 36. Biscay 36, tradewind 35, Rustler 36, Nicholson 31 (never talked about) and 32. Seldom seen on top 10 lists, but great boats. Thanks for the article.

Great comment and interesting to note that the first four of your additions are those currently entered in the 2022 Golden Globe Race – kind of the definition of a blue water boat.

Hey! I know this is somewhat off-topic however I needed to ask. Does operating a well-established blog like yours take a massive amount work? I am completely new to writing a blog but I do write in my journal everyday. I’d like to start a blog so I will be able to share my experience and feelings online. Please let me know if you have any kind of recommendations or tips for new aspiring blog owners. Thankyou!|

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Cal 48 reviews and more

Jensen Marine/Cal Boats

Founded by Jack Jensen and originally located at Costa Mesa, CA. The company first sold the centerboard LAPWORTH 24 designed by Bill Lapworth. The Lapworth’s 24 sold well. The name was first changed to CALIFORNIA 24 and then CAL 24. The name Cal stuck with the company until it closed in 1986. The 24 was a success and Jensen hired Lapworth to design several more yachts including a 27 foot pop-top racer/cruiser. (there would ultimately be 3 Cal 27’s) The CAL 40 was introduced in 1963. These yachts became one of the most celebrated production racings yachts of all time. Bangor Punta purchased Jensen Marine in 1965*. Boats were still listed as being built by Jensen Marine for a number of years after this date. Jensen Marine also built RV/Motor homes for few years at the Costa Mesa plant. The Cal Yacht factory was moved to Tampa, Florida in January of 1981. The factory remained in Tampa until March of 1985. It was then moved to Fall River, Massachusetts and was managed by Jim Hunt, son of yacht designer C. Raymond Hunt. Bangor Punta also owned O’Day Yachts and Prindle Catamarans. Later there was Siegler Marine, Starcraft Sailboat Products, and then finally just Cal Boats. If all the later takeovers are included, Cal boats continued to be built until 1989.(Eds. note: An attempt was made to list the boats as they were named by the manufacturer. For example, the second version of the CAL 30 was called the CAL 2-30. In cases where a later model used the same name as an ealier one, the boat is listed here with a unique identifier in parenthisis, such as CAL 24 (HUNT)to designate it as a separate model.) Together, Lapworth and Jensen produced thousands of boats including the Cal 20 (the most successful with more than 1,900 boats produced from 1961 to 1972), 24, 28, 29, 30, 33, 34, 36, 39, 40, and 46. The Lapworth/Jensen association continued until the Jensen’s death in 1980. In is later years Lapworth kept his own Cal 46 which he said was the favorite of all his designs.

C. William Lapworth

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• Sailboat Guide

Cal 2-24 is a 24 ′ 0 ″ / 7.3 m monohull sailboat designed by C. William Lapworth and built by Bangor Punta Corp. and Jensen Marine/Cal Boats between 1967 and 1971.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

A completely new design replacing the CAL 24 that Bill Lapworth had turned out in 1958. It is the first in a line of what Lapworth himself called his ‘finer-bow’ models which (according to him) had a slight advantage sailing to windward in a seaway.

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What about a cal 20? Any exp?

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A couple of questions since my deal with the Lightning fell through. If anyone has had a cal 20 or has been crew on one, where the hell are the life-lines? is the thing entirely sailed from the cockpit? No hiking out? I crew on a J-24 in SF bay. You need life lines, people hydro-plane off decks all the time. I did it a month ago and it was only 15-20 knot winds ( and saw another guy go in on another boat). I got my legs wet; half man overboard, thanks to the life lines. Anyway, I'm looking at a cal 20 tomorrow after the race (Berkeley Mid-winters) and would like some feedback for the community on this boat. This will be my first sailboat.  

Check out the Cal page on this site. Jim has some excellent photos of his restoration of a 20. Don't worry about the life-lines, you'll be hanging on to that ride! Surf-boards don't have life-lines either. And, if I'm not mistaken, i believe there is a pretty active Cal 20 racing assoc. on SF bay.  

Lifelines and pulpits used to be, and I think still are, options on smaller boats, although most people opt for them. I prefer having lifelines, but people shouldn't be going MOB very frequently, either with or without lifelines. If they are, they might be waiting too long before they re-position themselves after a tack. You always need to situate yourself so that you have solid footing, a low center of gravity, and a strong grip on the boat. When tacking, you shouldn't wait too long before you start moving from the old high side to the new high side of the boat. You should start moving to the other side when the skipper starts the tack, and not wait until he has completed it. If you wait until the tack is completed, you have a steep climb to get to the high side, and might have to do it with wet shoes. For a sailor, the first order of business is to make sure he stays on the boat. Everything else is secondary.  

JimDaddy said: Anyway, I'm looking at a cal 20 tomorrow after the race (Berkeley Mid-winters) and would like some feedback for the community on this boat. This will be my first sailboat. Click to expand...

Thanks for the links Thanks for all the info! I looked at a sad cal 20 yesterday after the Berkeley Mid-winters. It needs quite a bit of cosmetics and wood work. I'm going to wait for a nice one to come available locally. I'm also considering the Santana 22; very active class here in the bay area. Thanks again for the links! Great restore job on the linked cal 20!  

JimDaddy said: I'm also considering the Santana 22; very active class here in the bay area. Click to expand...

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