international one metre yacht

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Drone photo from IOM regatta

"Butterfly" downwind sailing

Trim and setup check before sailing

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What is IOM Sailing? * A Perfect Blend of Skill, Precision and Sailing Strategy. * The International One Metre (IOM) class represents the pinnacle of RC sailing in 38 countries worldwide, demanding precision, tactical skill, and technological expertise. Governed by the International One Metre International Class Association (IOMICA), this class adheres to strict specifications and "open box" rules, ensuring fair and competitive racing on the highest levels. IOMICA facilitates international competitions, fostering a global community where seasoned sailors challenge their skills and innovate in sailboat design and strategy to win most prestigious IOM events worldwide.

An Introduction to the IOM International Class Association

The IOM ICA has three major areas of responsibility, it covers: the class rules, international events, and class measurers. It exercises these responsibilities under the jurisdiction of World Sailing.

Read More About IOM ICA

World Championship 2024 (AUS) - UPCOMING!

Every two years, the International One Metre (IOM) class of radio controlled yacht invite the best radio control sailors from around the globe to compete for World Championship glory. In October 2024, the eyes of the radio sailing community turn to Queensland, Australia as the harbour city of Gladstone prepares to host this prestigious international event.

IOM class YouTube channel

International One Metre class YouTube currently promotes all major events that are uploaded and free to share in our playlists, we suggest you open your videos publicly if you wish us to promote them to our IOM sailors worldwide.

Visit our YouTube channel

A welcome from the IOM ICA Executive Committee

It is my honour as one of the youngest IOMICA Executive members to address you on behalf of our newly elected Executive Committee. Like you, my passion and commitment for this brilliant global class have only strengthened with my growing participation. It is fitting having this address come from one of our youngest members, as more than 50% of our electorate is new to the Executive Board. So, to initiate this address, I would simply like to start by pausing to thank each and every one of you. Thank you for your support and participation in a radio sailing class that has origins dating back to 1958. What an accomplishment! This lengthy tradition  has produced some amazing sailboat designs and memorable events year after year. The shared passion for IOM has generated a  global camaraderie  that unites us all. Recognizing this, we would like to acknowledge some remarkable individuals for their stalwart commitment and personal sacrifice in promoting our IOM Class and the infrastructure behind it.

We must congratulate Mr. Fred Rocha for his eight years of service as the IOM ICA Chairman and acknowledge everything he accomplished. His perpetual enthusiasm   and  inclusivity  are traits that have greatly benefitted our class. He aspired to improve both our internal and external communication, promote the development of our class in new territories, and openly embrace new concepts and ideas. Fred was very generous with his time and support of all our organizational requirements, and worked tirelessly in this pursuit. Congratulations also need to be extended to our newly elected IOM ICA Chairman, Mr. Olivier Cohen. Additional changes in the Executive resulted in the position VC – Technical is going from Mr. Jeff Byerley to Mr. Robert Grubiša, VC – InfoComms passes from Mr. Pedro Egea to Josip Marasović, and the position of Treasurer formally transferring from Mr. David Turton to Mr. Sean Wallis. Pedro Egea deserves special recognition, as he’s tirelessly served our group with IT and “common sense” support for now eleven years — you are a genuine rockstar!! VC Measurement position is vacant, but we wanted also to congratulate Mr. Lawrie Neish, a true veteran who was helping us for around 11 years!! Gentlemen, you all deserve our heartfelt thanks for your service, and be assured we will raise a glass on your behalf.

As COVID continues to be a present challenge for all of us, I’d like to conclude this greeting with a note of  enthusiasm .  Always remember why the IOM Class is held in such high esteem in so many different countries,  surviving the test of time!  No matter how technologically advanced and exceptional IOM sailboats become in future, we will always rely on an overwhelming and continued desire to explore all facets and possibilities to improve performance and everyone’s experience in the end.  We need to continue to push our limits in all sectors of this class, and convey that information in an  open  and  democratic  fashion. This voice needs to be expressed beyond just our annual vote, but vocalized at every race, regatta, start, and buoy rounding, and literally every metre moving forward. Whether you are sailing at a top international regatta or having a twilight club race with friends, you are all part of this active global  IOM family . We are all facing challenges and uncertainty in our daily lives, but we do not have to question our passion and commitment to IOM. Through your individual activities and support, each of you is responsible for helping make this class what it is now and will ultimately become. Our growth and transformation evolve only when you  participate ,  experiment , and continue to  explore , so your engagement is crucial to our success in the future. We look forward to seeing you at future regattas, active in our forums and chats, social media and in photos. The year 2021 is at the very end, but we are just getting started, so let us all continue our story  together .

– Josip Marasović, new VC InfoComms

The IOMICA Technical Sub Committee is dedicated to maintaining the technical integrity of the International One Metre model yacht in the best interests of IOM class owners world-wide.

The IOMICA Events Sub Committee is a committed group of international IOM sailors, who are dedicated in bringing you the very best of IOM championships.

The IOMICA InfoComms Sub Committee takes care of the IOMICA website and the forum.

The IOMICA Measurement Sub Committee is responsible for the class measurement rules.

Dibley Yacht Design

The dibley design advantage.

Dibley designed International 1m (IOM)

We started designing international one metres (iom) and marbleheads in 2008 and for a few years from 2011 we had a separate company building them in production runs..

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Tel +64 (0)275 933 692 Contact Dibley Dibley Newsletter

PO Box 2836 Wakatipu Queenstown, 9349 New Zealand Tel +64 (0)275 933 692

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Achieve Your Potential in Competition IOM Sailing

Vickers RC Sailing

Producer of the V11 Competition International One Metre Design by Ian Vickers.

Our workshop opened in 2014 with the V8 IOM. Since then we have produced hundreds of hand crafted IOM yachts in the Vickers design range. Yachts that have helped IOM competitors around the world achieve their potential and exceed expectations in competition.

We are currently offering the V11, the innovative design that finished 3rd at the 2019 World Championships in Port Alegre, Brazil.

When our clients return, they know they are tapping in to smart, competitive technology in IOM design and build. Stiff, Lightweight boats, that are Easily Assembled, Fast and Forgiving to sail. Join the fun!

Improve your results at the club and the regatta, with the fast and forgiving V11 from Vickers RC Sailing

Set Up and Sail

The V11 detailing is simple but effective. In conjunction with the V11 Set Up Guide, assembly is straight forward, and vital tuning information assists you to quickly understand and master your V11's potential

Vickers RC Sailing build processes are well refined and thought out.

Our boats are light, stiff and clever,  keeping to a simple and effective philosophy around detailing

The V11 design is a hull, foils and bulb package to compliment the full range of conditions experienced in RC Sailing. The hull design has full volume forward and features the familiar chines and tumblehome of the modern IOM for reduced weight and windage, as well as good tracking characteristics. The V11 features our peaked style foredeck for efficient water shedding when buried downwind and a geometrically strong shape for the forestay and mast ram areas.

Foils are slippery and strategically positioned with the rig to balance the yacht. The V11s forgiving balance through the wind range, allows the skipper to focus on the race at hand, and not rely on micro steering to maintain a consistent VMG.

The rig sits solid on its deck stepped mast step, complimented at deck level with an encapsulating mast gate arrangement over the mast ram. The rudder tube is rigidly supported inside the moulded servo tray. 

Hull construction is from E-Glass Fibreglass Cloth and High Grade Epoxy Resin.

The foils are Carbon Fibre Layup with High Grade Epoxy Resin.

Paint system is a 2 pot Urethane and the boat is thoroughly post cured before finishing.

The V11 Features-

Plastic main hatch access. 

Ready to accept RMG Winch and Standard sized Rudder Servo

Bow Bumper attached.

Hardware is Bantock including an adjustable mast ram, adjustable mainsheet post and tiller arm.

All necessary fittings attached for standing and running rigging.

The V11 comes out of our workshop in Beach Haven, Auckland New Zealand and is ready to accept rigs and electrics.

We also make sails that can be added to the order, or ordered separately.

So hit the enquiry button to discuss delivery times and options.

We are ready to help.

Essential to success in sailing comes down to the  Rig and how it is set up and tuned. The V11 comes with a Set Up Guide that covers all the expert information needed to set up like the guns. It specifies the hardware, construction and tuning information to get your rig and sails set up and sailing near optimum straight off the bat, so you can enjoy your racing and punch above your weight.

Include Sets of sails from Vickers RC Sailing and enhance the experience.

Vickers Rc Sailing is back taking orders again for the V11

We look forward to hearing from you 

Thanks for submitting!

The organising authority

assisted by

2024 INternatonal One Metre WORLD ChampionsHiP

Presented by the Australian Radio Yachting Association (ARYA)

Gladstone, Queensland, AUSTRALIA

20th - 28th October, 2024

* Image by Nick Lindsley

TIME TO SUBSCRIBE. Every Race, every day, for six days of racing, will be live-streamed to the world on our official YouTube channel. ALL Fellow RC sailors, share the link on your social pages, Tell everyone, lets promote our sport to a worldwide audience! Subscribe now and don't miss a race.

20TH - 28TH OCTOBER, 2024

Every two years, the International One Metre (IOM) class of radio-controlled yachts invites the best radio-controlled sailors from around the globe to compete for World Championship glory. In October 2024, the eyes of the radio sailing community turn to Queensland, Australia as the harbour city of Gladstone prepares to host this prestigious international event. 

Our goal is to provide the best on-water racing experience for competitors, teamed with enjoyable off-water social experiences, hospitality and fellowship.

With Gladstone ideally situated as the departure point for access to the Southern Great Barrier Reef - bring the family, come for the racing and stay for a holiday.

Take a look at our Trip Logistics page for more information on getting here and what is on offer when you do. The Gladstone Region is waiting....  

The LATEST NEws

100 days out - and the countdown is on....

Major Sponsor announced for International One Metre World Championships in October 2024

IOMWC24 - NOR Released

For the partners - what's to do?

What is an IOM?

It’s a misconception that the International One Metre (IOM) is a model or toy. The IOM is actually not a model of anything (to scale) but a stand-alone,  registered and governed class of yacht, internationally recognised and raced in over 30 countries by thousands of sailors. The IOM class is the most popular radio-controlled racing yacht in the world today.

1994 was the first World Title event held in Saint-Cyr, Vienne, France and was swept by three Englishmen, Graham Bantock, Chris Dicks, and Mark Dicks. Since then, only two Australians have sat on the highest step, Craig Smith (1997 & 2005) and Brad Gibson (2007). The current World Champion is Olivier Cohen from France (2022).  

Basic Specifications: Hull length: 1 metre Displacement: 4 kgs Draught: 420 mm Sail area: 0.6 m²

In rough order of importance, the performance of a RC yacht is a function of the following parameters.  It is interesting to note that, of all the major performance factors, only the beam of the hull has been left free by the IOM class rules.  It is therefore primarily differing beams, and positions of maximum beam, which currently distinguish the different IOM designs.
 

Mono/multi-hull	yes	Mono-hull
Sail area	yes	3 rigs only "A" approx 6000 sq cm "B" approx 4100 sq cm "C" approx 2700 sq cm
Bulb draft	yes	420mm max
Ballast ratio	yes	62.5% max (2500g bulb max)
Hull length	yes	1000mm
Sail aspect ratio	yes	"A" rig approx 4.8
Displacement	yes	4000g minimum
Rig plan	yes	Bermuda sloop, 7/8 fractional rig
Beam	no

Hull materials	yes	Wood, glass fibre, resin
Sail materials	no
Sail construction	yes	"Soft" sails Limits on panels, seams, reinforcements, battens, etc
Bulb materials	yes	Lead
Spar materials	yes	Wood, aluminium
Fin, rudder	no
Radio control	yes	2 channels
Rig construction	yes	Limits on shrouds, spreaders, stays, gooseneck, kicking strap, etc
Rig materials	yes	Steel wire, polymer

IOM success

Where might we go from here.

My first thought was to simplify the measurement of an IOM, and thus to simplify the class rules.  After a couple of years of trying to simplify the rules, I realised they were about as simple as they could possibly be and still achieve a "home-build one-design".  [Yes, indeed!  For those doubters out there, I invite you to have a go yourselves at simplifying the IOM rules and still end up with essentially the same boat.  Jan always reminds me that the apparently "simple" IOM class is achieved by "complex" rules.  There seems to be something of an inverse relationship between the "simplicity" of a class and "complexity" of the rules.]  The idea, of course, is to maximise the appeal of the class to the club skipper, to encourage its increased adoption in countries where it has not yet achieved a significant position, and to minimise regulatory and measurement problems and overhead.  I now think that the IOM class association should introduce an IOM design which is a strict one-design hard-chine hull (the Boxkite is on offer from Graham Bantock) with materials restricted to wood only in both hull and appendages.  This kind of IOM would use "normal" measured IOM rigs and sails, but ball-raced goosenecks or jib swivels would not be permitted.  Using an idea of Charlie Coventry, whenever this kind of design races with other IOMs, the other IOMs would have 2 points added to their score in every race of that event.  We might call this kind of IOM the BOM -- the Box One Metre and provide it with its own class rules.

Following this idea, and taking it one step further, is to introduce a "manufacturer" IOM.  This design would consist of a complete kit of materials and fittings, needing only radio control to go racing.  Its rules would be very simple -- you can use only what is in the kit, and you have to use it the way the kit instructions say.  This would be the MOM class, and it would have its own class rules.

My second thought a while ago was to improve the standard of sailing at IOM events.  We now have umpiring at International events, and this I think is an excellent development.  So my second thought now is to give experimenters and tinkerers a class to play in as well -- a "Marblehead" IOM, if you like.  So I think the IOM class association should introduce a kind of One Metre, where there are no restrictions on materials or fittings, while keeping the "normal" IOM length, weight, and overall draught limits for a mono-hull, and the "normal" IOM dimensions for the sails.  Everything else is "free".  Extending Charlie's idea, every such "unlimited" One Metre would have 1 point added to its score when racing.  We might call this kind of One Metre the FOM -- the Free One Metre, and again provide it with its own class rules.

While the BOM and MOM could measure as an IOM, the FOM obviously would not.  The FOM's attraction is that it conforms to the IOM "core" idea -- a minimum displacement in a one metre length with standard size sails -- while allowing itchy fingers and enquiring minds to enjoy freedom...  Neither the BOM, MOM, nor the FOM would be "International" classes, but who knows what time might bring us if boats were built and raced in these classes around the world?  It might be worth being clear that none of these ideas actually affect the IOM class and the IOM class rules -- these continue exactly as they are.  If you are interested in reviewing and commenting upon the proposed BOM, FOM, and MOM class rules, e-mail me and I can send you a document.

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The International One Metre (IOM) class is a 1m long hull with 1.7m mast height and a minimum weight of 4kg. The class rules are very tight and limit yachts to 2-function control and 3 one-design rigs. Hull, ballast, draught and construction materials are also limited. There is sufficient freedom to allow different hull and fin/rudder shapes to be developed.

Pos	Crew	Mast	Boom	Spi Pole	Main	Jib	Spinnaker	Rudder	Board	Hull

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International One Metre (IOM)

Sanctioned in 1998. The International One Metre (IOM) is the fastest growing class in the world. The rules in this class are identical to those used throughout the globe. The class has a one-design rig and weight minimums, but the hull design is very much developmental.

IOMs Are Sailed At...

Workers Hubertus Model Boat Club

Illawarra radio yacht club, sydney maritime modellers club inc, newcastle radio yacht squadron inc., lake macquarie radio yacht club inc., koonawarra bay sailing club inc., lastest iom news & results....

IOM GP2 Susan McAnna Memorial Trophy

Eastcoast IOM Championship – Rnd1 Feb 2024

IOM East Coast Challenge – 2024 – Gordon Maguire & Greg Torpy

New new new news – east coast iom championship.

Close of 2023 Message from NSWRYA President

Nswrya 2023 iryc iom invitational report.

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International One Metre

The International One Metre (IOM) is the most popular RC racing yacht in the world and is raced in over 30 countries.

The class was created in 1988 by Jan Dejmo aided by Graham Bantock and the Technical Committee of the IMYRU (predecessor of IRSA).  It has continued to grow steadily since its creation.

Although carbon fibre is allowed in the construction of the fin and rudder, construction of the hull must be of either wood or glass fibre. Spars shall be of alloy or timber and the sails are to 'One Design' sizes. 

The number of rigs is limited to three. This makes  the class very popular for amateur builders and many designers have plans for competitive boats. Builders who can supply kits for home completion or completed boats are plentiful.

The IOM class is managed by its own International Class Association, the IOMICA. Please visit the class website at  www.iomclass.org 

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International One Metre Radio Sailing Great Britain

About iom gbr.

IOM GBR is the class owner group for IOM RC yachts in the UK. It represents the class to the IOM International Class Association (IOMICA) who manage the class globally on behalf of World Sailing.  This includes ensuring that IOM owners are able to propose and vote on proposed changes to class rules, including administration, to IOMICA.

Any MYA member with a registered IOM is automatically a member IOM GBR, further registration is no longer required.

IOMICA have responsibility for:

The World Championships

The European Championships

The IOMICA Annual General Meeting

More information on IOMICA can be found here

The International One Metre Radio Controlled Yacht

  “The first boat in my life that didn’t require a mooring, dinghy park space, launching trolley, foul weather gear or harbour dues and gives me two days sailing a week. Fantastic!”

To find a club nearby click: Here or send us an email from the Contact Us   page if you can’t find what you are looking for.

Enthusiasm for the sport is addictive, many clubs have ‘guest’ days, some have loan boats, and all will welcome you to their community.

The IOM is a great boat to sail and its rules and measurement are relatively simply allowing the amateur and professional alike to exploit hull shape/fin/mast/ deck configuration - Steve Taylor

History of IOM RC Yachts

Created in 1988 by Jan Dejmo, the IOM class rules were written to enable boats to be built from scratch or kit by non-expert builders and inexpensively by a commercial builder without disadvantage to either group.

or glass re-inforced composite with carbon fibre being allowed in the construction of the fin and rudder. 

Spars shall be of alloy or timber and the sails are to 'One Design' sizes, with the number of rigs is limited to three.

Hulls must be constructed of either wood as this beautiful example

This makes  the class very popular for amateur builders and many designers have plans for competitive boats. There are a number of Builders here in UK and overseas,  who can supply plans for home completion, hulls and rigs or complete boats.

A limit of three different rig sizes allows sailing in most conditions from a lazy summer day to winds gusting over in excess of 30kts!

These boats, which handle beautifully, are fast, responsive and quite addictive. Once you have experienced  sailing one, there is no going back.

New Zealand Radio Yachting Association Inc.

The home of Radio Sailing in New Zealand

International One Metre (IOM)

International One Metre

Our most po pular class sailed in New Zealand and raced in over 30 countries.. The IOM is very lively and fun to sail. The hull cannot exceed 1000 mm in length an d the complete boat ready to sail must exceed 4000 gms. Two channel radio equipment is  required, one operates the winch the other the rudder.

The class was created in 1988 by Jan Dejmo aided by Graham B antock and the Technical Committee of the IMYRU (predecessor of IRSA). It has continued to grow steadily since its creation.

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Ranking Regatta

Event Location

Anzac Bay - Waiheke Island Radio Yacht Club

Awatea Lake, Paraparaumu - Kapiti Radio Yacht Club

Best Island - Nelson Radio Sailing Club Inc

Kai Iwi Lakes

Lake Dunstan - Cromwell Radio Yacht Squadron

Lake Manuwai - Kerikeri Radio Yacht Squadron

Lake Pegasus - Pegasus Radio Sailing Club

Lake Rotomanu - New Plymouth Radio Control Yacht Club

Lake Rotoroa, Hamilton - Waikato Radio Yacht Club

Lake Rua, Harewood - Christchurch Model Yacht Club

Lake Taurikura - Tauranga Radio Sailing Club

Orakei Basin - Oarakei Yacht Club

Quarry Lake - North Shore Radio Yacht Squadron

Regency Lake - Gulf Harbour Radio Yacht Club

Southern Reservoir - Otago Radio Yacht Club

St Mary's Bay, Westhaven, Auckland

Vauxhall Yacht Club

Victoria Lake, Hagley Park - Christchurch Model Yacht Club

Wattle Farm - Northern Marine Model Society

Whitby Lower Lakes - Wellington Radio Yacht Club

Winstones Lake, Otaki - Kapiti Radio Yacht Club

Event Organizer

Christchurch Model Yacht Club

Cromwell Radio Yacht Squadron

Gulf Harbour Radio Yacht Club

Kapiti Radio Yacht Club

Kerikeri Radio Yacht Squadron

Nelson Radio Sailing Club

New Plymouth Radio Control Yacht Club

North Shore Radio Yacht Squadron

Orakei Yacht Club

Otago Radio Yacht Club

Pegasus Radio Sailing Club

Tauranga Radio Sailing Club

Waiheke Island Radio Yacht Club

Waikato Radio Yacht Club

Wellington Radio Yacht Club

Westhaven Radio Sailing

Past and Future Events

Only Past Events

Only Future Events

Events Status

Moved Online

Rescheduled

august 2024

2024 sat 31 aug All Day sun 01 sep Taranaki Classic IOM Regatta Class IOM Event Type Regional Event Organized By New Plymouth Radio Control Yacht Club Lake Rotomanu - New Plymouth Radio Control Yacht Club , Clemow Road, Fitzroy, New Plymouth

Event Details

NoR SI Entry Form Entry List

August 31 (Saturday) - September 1 (Sunday)

Calendar GoogleCal

Clemow Road, Fitzroy, New Plymouth

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september 2024

2024 sat 14 sep All Day sun 15 Northland IOM Championships Class IOM Event Type Ranking Regatta, Regional Event Organized By Kerikeri Radio Yacht Squadron Lake Manuwai - Kerikeri Radio Yacht Squadron , Sandys Road, Northland

september 14 (Saturday) - 15 (Sunday)

Sandys Road, Northland

2024 sat 21 sep All Day sun 22 2024 Kapiti IOM Classic Class IOM Event Type Club Event Organized By Kapiti Radio Yacht Club Winstones Lake, Otaki - Kapiti Radio Yacht Club

NoR SI Entry Form Entry List 

september 21 (Saturday) - 22 (Sunday)

2024 sat 28 sep All Day sun 29 Canterbury IOM Championships Class IOM Event Type Ranking Regatta, Regional Event Organized By Pegasus Radio Sailing Club Lake Pegasus - Pegasus Radio Sailing Club , Lake Pegasus, Kaiapoi, South Island, New Zealand

september 28 (Saturday) - 29 (Sunday)

Lake Pegasus, Kaiapoi, South Island, New Zealand

october 2024

2024 fri 04 oct All Day sun 06 IOM National Championships Class IOM Event Type National, Ranking Regatta Event Organized By Cromwell Radio Yacht Squadron Lake Dunstan - Cromwell Radio Yacht Squadron , Partridge Road, Cromwell 9310, New Zealand

october 4 (Friday) - 6 (Sunday)

Partridge Road, Cromwell 9310, New Zealand

november 2024

2024 sat 16 nov All Day sun 17 Murray Rountree IOM Regatta Class IOM Event Type Ranking Regatta, Regional Event Organized By Kapiti Radio Yacht Club Winstones Lake, Otaki - Kapiti Radio Yacht Club

NoR

SI

Entry Form

Entry List

november 16 (Saturday) - 17 (Sunday)

december 2024

2024 sat 07 dec All Day sun 08 IOM Top of the South Class IOM Event Type Ranking Regatta, Regional Event Organized By Nelson Radio Sailing Club Best Island - Nelson Radio Sailing Club Inc , Barnett Ave, Best Island, Nelson

december 7 (Saturday) - 8 (Sunday)

Barnett Ave, Best Island, Nelson

february 2025

2025 sat 15 feb All Day sun 16 2025 North Harbour IOM Championship Class IOM Event Type Regional Event Organized By Gulf Harbour Radio Yacht Club Regency Lake - Gulf Harbour Radio Yacht Club , Regency Park Drive, Gulf Harbour, Whangaparāoa 0930, New Zealand

 NoR SI Entry Form Entry List



NoR

SI

Entry Form

Entry List

february 15 (Saturday) - 16 (Sunday)

Regency Park Drive, Gulf Harbour, Whangaparāoa 0930, New Zealand

Coalhouse Fort Radio Yacht Club

Radio Yacht Racing for Everyone

INTERNATIONAL ONE METRE (IOM)

Club racing of the International One Metre Yachts at Coalhouse Fort RYC takes place on Wednesday mornings throughout the year as well as the 4th Sunday of each month. The club also plays host to a Number of Regional and National meetings during the year on Sundays – see club calendar .

The  International One Metre (IOM)  is a class of Radio Controled Yacht used for racing under World Sailing  Racing Rules of Sailing. It is a measurement-controlled box rule originally created by the ISAF-RSD, now the  International Radio Sailing Association (IRSA), in 1988 in an attempt to harmonise the various one metre rules created around the world. The IOM Class Rules specify a standardised sail plan and control of the other major performance dimensions (displacement, length, and draught) while allowing some freedom in hull design. The IOM is now the largest and arguably most competitive of all radio sailing classes.

In the UK there are currently over 1000 registerd IOM’s with a strong national open event series as well as club racing through out the country. Although Carbon fibre is allowed in the construction of the Fin and Rudder, construction of the hull must be of either wood or Glass fibre. This makes the class very popular for the amateur builder and most of the professional builders have plans and kits for home completion.

Maximum overall length 1000mm

Maximum draft of 420mm

Minimum total weight 4kg (Excluding burgee!)

Three closely controlled sailing rigs

This allows the top sailors and designers to produce a range of designs within the one class. (There is a website on the internet that has a database of designs listing over 215 different designs currently.) The same CAD software that the top keelboat designers’ use is used by IOM designers, in fact some of the top round the world yacht designers have designed IOM yachts.

With three closely controlled sailing rigs, a maximum overall length and weights which are kept to within grams of the minimum weight, the emphasis is on boat set up and control, with even the smallest of changes in mast rake or sail camber being “felt” by the skipper. Once you get over the concept of sailing from the shore rather than in the boat, there isn’t really a lot of difference in the racing, we race to the same standard racing rules with a few minor amendments. In fact the only real difference is that we can get up to 16 races in a day.

We recommend buying 2nd hand to start off, but under the guidance of club members. This way the right boat can be selected for you. Quite often word of mouth is a good source, but lOM’s for sale can be found on the Model Yachting Association For Sale section .

The club is proud of the achievements, within the sport, of a number of its skippers. With a history of some the top Regional and National skippers from whom much can be learned about racing and boat setup.

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• Dragon Flite 95
• Hales Micro
• Sail Accessories
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• Sailmakers Full Roll
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  Product Description

Brighton Boat Works is proud to be a US distributor for the exceptional new IOM the Goth MX14 . Designed by the legendary Australlian Frank Russell with production machining designed and produced by Maurizio Morbidelli 's Italian Company MX Components. This boat comes from the factory complete with Hull, Deck Fin-box,Deck accessories, Carbon Fiber Foils; both rudder & Keel, Carbon fiber coated Ballast. Additional included deck accessories are a radio pot, Rudder arm, mast ram and main sheet riser, and silicone nose bumper. Just add servos and rigs (we are happy to provide those as well!!) and you are good to go racing! This Item is Special Order Please allow 8-10 weeks for delivery.

THe MX14  is the next evolution of the extremely successfull Goth Hull design.The MX14 features a 12mm narrower beam and additional forward deck volume. The new design is complete with a new keel, rudder and bulb design. The MX14 is available as either a single color boat or a 2 Color boat(Hull and Deck). Any Color may be selected from the RAL Color Chart. That chart can be found at http://www.ralcolor.com/ . Please specify the desired color when ordering. Color is added to the boat in the mold to insure an excellent finish without the additional weight of a gell coat.

The deck, hull, fin box and deck accessories are assembled at the factory. all openings to the hull are factory cut. Additional Accessories for this boat include:

1. Black painted Carbon Fiber Rudder

2. Black painted Carbon Fiber Keel

3. Carbon fiber coated and black painted Ballast

4. Mast Ram

5. Sheet riser

6. Battery/Radio Pot

7. silicone Nose Bumper

8. Rudder steering arm

9. Installed Nickle plated Sheet guides and Back stay mount.

10. Servo tray is predrilled to receive the RMG Drum Sailwinch. THe MX14 can be outfitted with an arm winch if desired.

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Status of Class: Adopted Administrative Body: IOMICA

Since its inception in the late 1980’s the International One Metre (IOM) has become the most popular class in the UK.

Sailed at most clubs on a regular basis it is now the class that creates the largest fleets, with regular fleets of 30 boats at district level and a maximum entry at most international events. The class rules for the International Classes are governed by the International Radio Sailing Association (IRSA) and IOM ICA.

• IOM GBR Events here
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• You will find further Q&A relating to the IOM Class here
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International One Metre (IOM)

The class was created in 1988 by Jan Dejmo aided by Graham Bantock and the Technical Committee of the IMYRU (predecessor of IRSA).  It has continued to grow steadily since its creation. Although carbon fibre is allowed in the construction of the fin and rudder, construction of the hull must be of either wood or glass fibre. Spars shall be of alloy or timber and the sails are to 'One Design' sizes. 

The number of rigs is limited to three. This makes the class very popular for amateur builders and many designers have plans for competitive boats. Builders who can supply kits for home completion or completed boats are plentiful.

The International One Meter class (IOM) is the most popular and most competitive international class in the world. The class is administered by the International One Meter Class Association. They hold World Championships every two years as well as European Championships in the non-Worlds years. Approximately 40 countries around the world sail this class, most of them holding National Championships annually.

In Australia, over 2000 boats have been registered up to the year 2020. There is an active circuit of racing with each of the States holding their own State Championships as well as Regional events. These events count towards a National ranking system, which is used to select Australian participants in International regattas.

At the other end of the spectrum, the IOM class is a great class for local clubs to sail. The boats are small enough to be easily transported and handled, whilst being large enough to sail really well. Most of the clubs in South Australia sail the IOMs and there is an active calendar of events.

Details of the class:  Box class,   One Design rigs Glass hulls, carbon foils and alloy spars Hull length 1 metre Displacement 4 kgs Draught 420 mm Sail area 0.6 m²

Further details about the class can be found at the website of IOMICA:  www.iomclass.org

Class rules and technical information

Sunday, 08 September, 2024

Latest results, coming events.

Colin Thorne's Radio Sailing Technology

Drag measurements on an international one metre yacht.

• Thoughts on Chines Aug 2013
• Methods for estimating heeled resistance (Dec 2013)
• Estimating the hull drag of an IOM Yacht (August 2014)
• Ballast Bulbs
• Keel Deflections
• Measuring the Drag Difference Between Two Hulls
• Simple Towing Gauge
• Observations at IOM Nationals 2011
• Part 1 Balance of a Yacht to Windward
• Part 2 Balance of a Yacht to Windward
• Part 3 Balance of a Yacht to Windward
• The Concept of Sailing Regimes
• Heel effect on wind and water angles (Nov 2013)
• Part 1 Sail Dynamics: The Concept of Automaatic Rigs
• Part 2 Sail Dynamics: Automatic Rigs
• Mast Section Stiffness
• Luff at back or side of mast Aug 13
• Wind Speed and Gradient Observations at Lake Julienne (Jan 2014)
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The hydrodynamics of radio control yachts generally and International One metre Class yachts particularly are considerably more complex that that for full size yachts because they operate through the range of Reynolds Numbers that spans laminar flow to turbulent flow in flat plates, and also because at this scale surface tension can affect both the water forces around the waterline and also the wave formation made by the hull.  

A series of drag measurements was made on an older IOM design (Hull A) and a few on an even older IOM (Hull B).  The results of these measurements were compared to various theoretical predictions to investigate what areas deserve further investigation.

There were three findings from this work:

The measured skin friction of the hull was at least 30% more than the author anticipated.  This needs to be checked with more accurate measurement systems and is worth investigation with an assessment of the role of surface tension and possibly hull surface coatings, since this represents a chance to make a substantial improvement in performance.

Adding the skin friction drag as described in Section 3 to the residuary resistance predictions from Keuning (2008) gives results that show a very nice fit to the observed drag values within the test range of up to 2.5 knots. Pending further data, this seems a reasonable empirical formulation for IOM drag prediction, though the physics of why any non surface friction drag should increase with speed squared is not clear.

The author measured an average speed on the downwind leg at the 2011 Nationals as 5 knots in a strong C rig breeze and with considerable help from wave surfing.  Thus tests to this speed should be adequate.

There was also the apparent sudden increase in keel and bulb drag at 1.5 knots.  The data without the keel at higher speeds was sparse and scattered, better data is needed before this can be considered proven behaviour.

  1.0 General

This article describes towing tests done in April and May 2012 at the lower end of Pittwater, an estuary north of Sydney.  The aim of the tests was to allow comparison of the measured drag with predictions made using common methods.

The tests were done by towing the boat from a point beside, but well clear of any wake of a dinghy fitted with an electric outboard with a built in GPS.  Time trials showed the speed readout to be accurate to 0.05 knots.   Drag was measured with a simple but carefully calibrated gauge.  The calibration of the gauge used to measure drag forces is given in Appendix 1.

All tests were done in the morning with a glassy water surface and no discernable wind.  There was a slight undulation in the water surface but not enough to cause any pitching of the hull, and the water temperature was estimated as 20 degrees centigrade. No attempt was made to allow for the bow down moment caused by the sails both because the data to evaluate the moment was not known and because this investigation was about fundamentals.

Most tests were done on hull A fitted (in the keeled tests) with an Obsession keel and a Sails Etc bulb.    The hull was not new but had sheen and a few small scratches on the starboard side. When in the water a meniscus could be seen at the stern.  The test series were as follows:

(a) With keel and rudder and weighted to a total of 4 kg using weights attached to replace the rig weight at a position closely approximating the rig C of G.  A limited number of tests were also done on a Hull B with the surface wet sanded with 400# paper, this boat had a TS2 style keel and bulb.  

(b) With the keel removed from the and internal lead ballast added to bring the weight of the whole to 4kg less the buoyancy from the keel and bulb, estimated as 300g. Care was taken to ensure the centre of gravity was maintained in the same place as in the keeled tests, and the keel slot was covered by smooth waterproof tape. All these were on Hull A

(c) As (b) above but with three turbulence inducing strips in the forward half of the hull.  All these were on Hull A

2.0 Keel and Bulb Drag

Normal methods of hull drag prediction are for the hull only.  It is impracticable to tow a boat without a rudder, and so an estimate of appendage (keel, bulb and rudder) drag is necessary.

Figure 1 Shows the drag for the Hull A in Newtons (9.81 N= 1 kg) measured in Series (a) with the keel and bulb in place, plotted against boat speed as yellow triangles.  The yellow curve is a line of best fit to these data.  Likewise the drag from Series (b) (Hull A without the keel and bulb) is shown as pink squares and the curve of best fit is in pink.

 The drag from the keel and bulb is the difference between these two curves, which is shown in Figure 1 as the pink curve with square dots.

The theoretical drag for the keel and bulb was estimated using data for low Reynolds numbers published by Selig et al and the results are also plotted in Figure 2 as a blue solid curve.  At speeds below 1.5 knots the theoretical drag is reasonably close to the measured drag, however beyond that the measured drag increases sharply.  It was determined that this was not just the result of the mathematical form of the trend lines in Figure 1 by using different mathematical forms for the trend lines, the result was also unchanged by removing individual data points.  The result is thus reasonably robust, however clearly more data at speeds over 1.5knots is needed for confirmation.

In the interim, however, for the purposes of reducing the measured drag to that of the hull, the values shown by the blue dots was adopted as the keel and bulb drag.  The rudder drag was estimated from the Selig data by the same means as for the keel and was used unchanged on the grounds that there was no data to show whether or not the rudder experienced the same turbulence.  This uncertainty in the rudder drag affects the implied bare hull drag by less than 3%.

3.0 Skin Friction 

In towing tank testing the objective is usually to predict the behaviour of much larger boats than that tested, and as a result the models towed are fitted with turbulence strips or studs on the hull to ensure that the flow round the model is turbulent.  IOM’s are smaller than most models tested these days and are certainly not fitted with strips or studs. 

The transition between turbulent and laminar flow is often quoted as between Reynolds numbers of between 500,000 and 1,000,000.  Now an IOM reaches 500,000 at about 1.5 knots and 1,000,000 at about 3 knots so it lands in the difficult transition area.  Also there is no reason to believe that a hull will see the same transition zone as a fully submerged flat plate, especially since there is an air/water interface and a keel and rudder to create turbulence, and also a bow bumper that is rarely hydro-dynamically smooth.

This form of drag clearly is a good one to investigate. It can be seen from the next section that residuary drag is negligible at speeds up to about 1.25 knots, and hence the results from lower speeds are useful for examining skin friction behaviour.

Figure 3 shows the drag value from the un-keeled tests (Series (b)) with the drag reduced by the estimated rudder drag (a rather small correction) as pink triangular symbols.  Also shown is the same thing for tests with turbulence strips as blue diamond symbols.  

It should be noted that the wetted surface of most of the general type of IOM designs falls within a relatively narrow range, of about .147 to .154 square meters.  In the absence of lines plans, an estimated value of 0.148 was used.   

Because boats are curved rather than flat, a “Form Factor” is used to move from the flat plate value to one for the actual boat.  The ITTC (1957) turbulent drag factor used includes a 1.12 shape factor but it was necessary to add a further 40% to give the dashed blue curve, which is in reasonable agreement with the data from the Series with turbulence strips (Series (c)).  This implies a total shape factor of 1.57.

Using the same form factor with the laminar values for a flat plate gives the dotted brown curve.  It is obvious that this is below the drag measured without turbulence strips (Series (b)), so there must be some turbulent areas along the hull, which is not surprising for the reasons given above.

It was found that an assumption of 35% turbulent flow and 65% laminar with a shape factor of 1.57 for both gives a reasonable fit to the bare hull data around 1 knot.  This is shown as the solid blue line on Figure 3, and compares with the measured bare hull data shown as pink triangles. 

The data shows that the drag for the cases with and without turbulence strips converge to be similar by 2 to 2.5 knots.  For the purposes of the next section it was assumed that the transition from 65/35 laminar turbulent to 100% turbulent would be completed by 2.5 knots and the solid dark blue line shows these values.

The round green dots on Figure 3 are from the tests on Hull B with the calculated appendage drag subtracted from the measured values.  They are in the same order of those of Hull A, suggesting that these high values are not solely attributable to the shape of Hull A.

It must be said that the form factor of 1.57 is extremely high and it begs the question as to whether there may be some other form of drag operating. The accuracy of the gauge is worth further improvement but is thought unlikely to be bad enough to cause such a high value. The resistance for an apparent wind blowing head on was calculated as .002N for 1 knot and .008N at 2 knots.  It is therefore unlikely that this was a contributory factor.

Surface tension is another area worth examining; we all remember the toy boats that whizzed around the bath with a bit of camphor on the back.  The surface tension of water is 0.078N/m and around the perimeter of the waterline of an IOM this amounts to about 0.16N.  Only a small fraction of this would make a substantial contribution to the drag. 

4.0 Residuary Resistance Prediction Methods and total resistance

Resistance prediction methods are at the heart of most performance prediction programmes. This section reviews the predictions from some current methods with the observed results. There are two parts to this, skin frictional resistance and residuary resistance. Other sources such as that due to heeling or waves are outside the scope of these notes.

Skin frictional resistance was discussed in the last section. This section looks at predictions of residuary drag and total drag. For the purposes of examining these predictions, data were used from a generic IOM design similar in type to Hul A.  The data used for input are presented in Appendix 2.

The yellow chain dotted lines in Figure 4 show the residuary resistance for this generic IOM design using the method of Gerritsma (1996) as used in the hull design program Hullform 9P.  The shape of an IOM is actually outside the limits of validity of this method, which is similar though not identical to the one used in Delftship. The Delft yacht series has been extended to cover longer thinner and faster boats and a method was presented in Keuning (2008).  The residuary resistance calculated for the same generic IOM design using this method is shown in the thin green dotted line in Figure 4.  The results are roughly similar to, but lower than that of Gerritsma (1996).

The Delft series hulls also have overhangs, which the IOM does not.  An estimate of the added drag from the lack of overhangs was made from data in Keuning (2008) and the resulting residiary drag with this addition is shown by the thick  green line.  This effect does not apply at speeds below about 3 knots.

It should be noted that in the Delft series the residuary drag is calculated from the towing tank tests using only the 1957 ITTC value (which has a form coefficient of 1.12), for all turbulent drag coefficients.  This is because of the difficulty in measuring accurate drag values at low speeds in test tanks and the subsequent uncertainty of form factors.

If this usual Delft system is followed, the drag curve shown as a thin dotted blue line is obtained. It will be seen that it slightly overestimates the drag at low speeds and underestimates the drag at higher speeds by up to 15%.  Clearly, some different formulation is required.  The Delft series was aimed at predicting the drag of yachts 10 to 15m long, not downwards to 1 metre, and the models had water line lengths of 1.6m in the initial set and 2m thereafter.  Steps to avoid surface tension effects are sometimes taken in towing tests but even so the potential effects on models this size would be substantially less than on an IOM.   

Adding the skin friction drag as described in Section 3 to the residuary resistance predictions from Keuning (2008) gives results that show a reasonable fit to the observed drag values within the test range of up to 2.5 knots and is shown by the solid green line. Pending further data, this seems a reasonable empirical formulation for IOM drag prediction, though the physics of why any non surface friction drag should increase with speed squared is not clear.

5.0 Discussion  

There were three findings from these tests that deserve more investigation with better experimental methods:

Combining the skin friction data calculated as in Section 3 with the calculated residiary drag calculated from Keuning (2008) gave reasonable agreement with observed data up to the top of the test range i.e. 2.5 knots,  though the physics of this is not clear. Most club boats are in this range about 90% or more of the time, however the calculations have been only demonstrated to 2.5 knots and may to be incorrect above this, so checking above this level is clearly desirable. 

The author measured an average speed on the downwind leg at the 2011 Nationals as 5 knots in a strong C rig breeze and with considerable help from wave surfing, so tests to this speed should be adequate.

There was also the apparent sudden increase in keel and bulb drag at 1.5 knots.  The data without the keel at higher speeds was sparse and scattered, and better data is needed before this can be considered proven behaviour.

This series of tests is only a beginning and not an end to the investigation into the basics of IOM behaviour.  The tests also need to be extended to other designs with different surfaces to those tested.  Better experimental techniques have been developed which will hopefully decrease the scatter in results.  

Acknowledgments:

The Author would like to thank Phil Best and Bob Vine who assisted in the tests, and Julian Bethwaite and Simon Wotin who obtained the Keuning reference for me.

References:

Keuning, J.A., and Kargert, M.; A Bare Hull Prediction Method Derived from the results of the Delft Systematic Yacht Hull series extended to higher speeds; International Conf on Innovation in High Performance Sailing Yachts, Laurient, France, 2008

Fossati, F. Aero-hydrodynamics and the performance of sailing yachts. Allard Coles Nautical London 2009 Marchaj, C.A Sailing Theory and Practic3. Allard Coles Nautical, 1964

Gerritsma (1996) from the hull design program Hullform 9P.

Bantok, G. Article in Seahorse Magazine

Selig, M., Donovan, J. and Frazer,D. Summary of low speed airfoil data Vol 1 From soartech-aero.com

Selig, M., Donovan, J. and Frazer,D Airfoils at low speeds  From soartech-aero.com

Data used for residiary drag calculation using Keuning (2008).

Input data: Description, Units, Generic IOM:

AWS Wetted Surface M^2 0.14739

LWL Waterline Length M 0.9905

BWL Waterline Beam M 0.175

Cp Prismatic Coefficient.  0.52

Del  Volume Displaced M^3  0.003609

LCB  C of B from forward perpendicular M 0.5181

LCF  C of Water-plane from forward perpendicular M  0.5518

AWP Water plane area M^2  0.11452

Cm Mid-ship section coefficient.  0.723

g Acceleration due to gravity M/s/s 9.81

ρ Density of water Kg/M^3 1025

Tc Hull draft m 0.056

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Live updates: Seven dead in 56m superyacht Bayesian sinking tragedy

Seven people have died in the Bayesian sinking disaster. These include the six missing people who were inside the yacht when it sank, as well as a seventh person who was located shortly after the disaster. The seventh person is understood to be the yacht's chef, Recaldo Thomas. The other six are:

• British tech entrepreneur Mike Lynch, once dubbed 'Britain's Bill Gates'
• Lynch's 18-year-old daughter, Hannah
• Morgan Stanley's chairman, Jonathan Bloomer
• Judy Bloomer, wife of Morgan Stanley chairman
• Chris Morvillo, a lawyer working for London-based law firm Clifford Chance
• Neda Morvillo, an American jewellery designer and Chris' wife

It is understood that the yacht was being used to celebrate Lynch's recent victory in a 13-year £8 billion fraud acquittal.

No one remembers the mast snapping before 56m superyacht Bayesian sunk, says crew

No one recalls seeing the mast snap on board the 56-metre Perini Navi sailing yacht Bayesian which sank off the Italian island of Sicily on 19 August. The eyewitness account of a crewmember on board the vessel, which was obtained by BOAT International , said that the boat was struck by a freak weather event which led to the yacht heeling at around 20 degrees to starboard. As crewmembers were securing items, the heeling angle began to increase rapidly until the yacht started taking on water and sank rapidly.

The crewmembers who were up on deck were able to evacuate the yacht with minor injuries. The yacht is understood to have sunk in just twelve minutes, and it is believed that a "major ingress" of water from the top down would have caused the sinking, according to a captain who wishes to remain anonymous. This is based on the fact that no breaches have been reported in the yacht's hull, and the fact that the yacht should have been able to remain afloat with two flooded compartments.

"Very difficult to understand what could have overwhelmed a vessel of that size" says captain of sistership

The captain of the sistership to the sunken 56-metre Perini Navi sailing yacht Bayesian has said it is "very difficult to understand what could have overwhelmed a vessel of that size" and called the 56-metre Perini Navi series "bulletproof".

David Hutchinson, captain of Rosehearty , said he had taken the yacht around the world multiple times and he had "total faith in the boat".  "We've been to Antarctica and Chile, and we've had her in 70 knots of wind," he says, and the vessel had never put them in a situation that felt unmanageable.

However, Hutchinson noted there were differences between Bayesian and Rosehearty ; notably, Bayesian's  74-metre mast, which would have been heavier and added increased windage. The yacht's layout was also different, with guest accommodation on Bayesian located further forward.

Live updates

• During a news conference on Saturday morning (24 August), prosecutors confirmed they are in the early stages of investigating a "crime hypothesis" of culpable shipwreck and manslaughter. Authorities also said the yacht likely sunk because of a downburst (powerful wind that descends from a thunderstorm), rather than a waterspout.
• A search and rescue for six missing people has concluded. The final missing person is understood to be Hannah Lynch. 
• According to Reuters, six bodies have now been found in the sunken yacht. These include Mike Lynch, a British technology entrepreneur who co-founded Autonomy Corporation and founded Invoke Capital, although Italian authorities have not confirmed this.  
• One person was found immediately after the yacht sunk, and this is understood to be the yacht's chef. 
• Lynch’s wife, Angela Bacares, and a one-year-old are among the fifteen people rescued along with Bayesian' s captain, James Cutfield.
• Another sailing vessel in the area, the 42-metre Sir Robert Baden Powell ,  stepped in to offer assistance in the initial rescue.
• Divers have been able to reach Bayesian' s sunken hull, which lies at 45 metres of depth about half a mile from the coast. The yacht had the largest aluminium masts of any sailing yacht on the water.
• Eyewitnesses in the area reported "hurricane" conditions off the coast but local weather websites did not indicate any severe squall, which suggests that the weather event was not forecast.
• At around 5am local time on 19 August, Bayesian was hit by bad weather and sunk.  The sailing yacht was anchored or idle at the time of the incident.

Built in Italy by renowned builder Perini Navi and delivered in 2008, the yacht's naval architecture was developed by Ron Holland Design while the interior design is by Rémi Tessier . She was formerly known as Salute and was last refitted in 2016. She was listed for sale earlier this year, according to BOATPro . The yacht had accommodation for nine guests and 12 crew.

BOAT International will update the story as it develops.

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5th Moscow Boat Show, March 20-25, 2012

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Written by Zuzana Bednarova

The 5th edition of the International exhibition of yachts and boats –  Moscow Boat Show , held from March 20 to 25, 2012 will be hosted by the first pavilion of Crocus Expo International Exhibition Centre. This popular show is dedicated not only to the specialists of the market segment and professional sportsmen but also to those who consider sailing sport to be their hobby and well cherished dream.

The project is the result of joint efforts of the Crocus Expo International Exhibition Centre and the National Marine Industry Association. The event is supported by Aston Martin Moscow, Burevestnik Group logistics department and the Yachting specialized magazine. Moscow Boat Show is the largest project in Russia presenting all the best in the world of yachting.

The exhibition annually shows high level of attendance and has already proved as significant and noteworthy event in the world of yachts and boats. Every year new exhibitors join the list of participants, genuine “sharks” of yachting business, the quantity of visitors considerably increases and the exposition becomes more sated and diverse.

The best companies professionally involved into yachting and small navigation business – 180 exhibitors from 17 regions of the Russian Federation and 15 countries traditionally presented the best and the newest in the world of yachting at 2011 edition: from design and facilitation of vessels and up to cruising and training courses for beginning skippers. In 2011 the overall exhibit space comprised 18 000 sq m. More than 25 000 visitors came to the show.

This year the exposition space will increase up to 30 000 sq m and will be accommodated in 4 exhibition halls. The scale of the project confirms confident positions of its positive development. The organizers will try to arrange a genuine fiesta of water on land!

Quite a number of foreign exhibitors will participate in the show. Foreign companies show increasing interest to yachting business in Russia.

Moscow Boat Show provides the perfect platform from which to preview new products, evaluate market trends, and establish long-lasting and commercially profitable partnerships. Despite the dynamic changes taking place in Russia and the rapid growth of the yachting sector, the show continues to complement and reflect the industry’s demand and is a promotional opportunity not to be missed!

As its popularity and success rate has grown over the last years Moscow Boat Show 2012 has developed to incorporate more than just an exhibition. These special events serve to attract leading exhibitors and visitors and allow all participants the chance to broaden their knowledge and of course their sales potential.

Moscow Boat Show helps representatives of yachting business to get acquainted with their Russian colleagues and gradually improves national yachting market to a new level. It is obvious that for 4 years of its running the project has turned to a status event of the international exhibitions calendar. The organizers of the exhibition aim to bring together on the same platform all key national and worldwide players and to offer an excellent platform to encourage networking among specialists and visitors in order to accelerate the development in this field as well as implementing new technologies, the newest equipment, materials and components.

Please contact CharterWorld - the luxury yacht charter specialist - for more on superyacht news item "5th Moscow Boat Show, March 20-25, 2012".

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Superyacht news:.

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Ship captain who saw Mike Lynch’s yacht sink blames ‘extreme mast’

An eye witness to the sinking of British tech entrepreneur  Mike Lynch ‘s yacht on Monday attributed the tragedy to the extremely tall mast, which made the vessel more vulnerable to the violent storm that was lashing the area.

Dutch ship captain Karsten Börner, whose own boat was anchored near Lynch’s Bayesian , told the Financial Times that the superyacht appeared to have stability problems.

“The center of gravity is too high with this extreme mast,” he explained, while also dismissing the Italian coast guard’s initial view that the Bayesian was in the wrong place at the wrong time.

“I was on the same spot,” Börner added. “I have two masts and they are 28 and 29 meters above deck, she has one, 73 meters (239.5 feet) above deck.”

Authorities are looking into  possible reasons Lynch’s yacht quickly sank , when other boats nearby seemed to weather the same storm without issue.

The 56-meter long superyacht had been carrying 22 passengers and crew. Börner rescued 15 passengers and said they told him the ship sank in less than two minutes.

He also described the wind as “violent, very violent,” telling the FT that the wind speed likely reached hurricane strength as “tons of water” came down.

“I never saw that before, there was a water tornado,” he said.

The CEO of the Italian Sea Group, which owns the company that built the Bayesian , previously told the FT that it was designed to be stable with its tall mast and suggested the crew didn’t carry out proper safety measures.

But Börner said the crew told him they “closed the ship,” according to the FT .

The Italian Sea Group didn’t immediately respond to Fortune’s request for comment on Börner’s remarks and declined to comment to the FT .

Meanwhile, prosecutors in Italy have launched a probe into the shipwreck and multiple counts of culpable homicide, which are equivalent to manslaughter charges.

The Italian coast guard also confirmed Friday that it had recovered the body of Lynch’s 18-year-old daughter, Hannah. In addition to Lynch and his daughter, the other victims included  Morgan Stanley  International chair Jonathan Bloomer and his wife, Judy Bloomer; Clifford Chance lawyer Chris Morvillo and his wife, American jewelry designer Neda Morvillo; and chef Recaldo Thomas.

On Saturday, Italian prosecutors told reporters that the emergency began at 4:38 a.m. local time , when a red flare was launched and seen by the coast guard, adding that the passengers were likely asleep at the time.  

Deputy prosecutor Raffaele Cammarano told reporters that a crew member had been on duty, as required, when the “truly sudden” storm struck.

Chief prosecutor Ambrogio Cartosio   said ship-tracking data showed the yacht started to drift from anchor just before 4 a.m., then traveled about 360 meters over five minute to the spot where it eventually sank some 15 minutes after that.

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Ukraine war latest: Ukraine 'launches raid on second Russian region' - as it tests first domestic-made ballistic missile

Volodymyr Zelenskyy says his country has run a test of its first domestic-made ballistic missile. It comes as Ukraine attempts to push into Russia's Belgorod region, according to reports. Watch a Sky News exclusive on the Ukrainian resistance operating behind Russian lines.

Tuesday 27 August 2024 14:06, UK

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• Ukraine trying to break into new Russian region - reports
• Border 'under control', says Russian officials
• At least four people killed as Russia pounds Ukraine, with hotel 'wiped out'
• It comes after Russia unleashed missile and drone barrage across Ukraine yesterday, killing at least seven
• Kyiv tests its first ballistic missile
• Watch: Who are Ukraine's secret resistance?
• Your questions answered: Can Ukraine advance further inside Russia?
• Live reporting by Mark Wyatt

By Dominic Waghorn , international affairs editor 

This is the first major Russian air assault on Ukraine since Kyiv's surprise cross border invasion.  

The multiple drone attack has wrought yet more damage to Ukraine's power infrastructure, which had just been restored to some level of stable supply. 

After months of stalemate, the war has shifted into a dynamic struggle to seize the initiative and maintain it.

Russia is hitting back with force after Ukraine's surprise cross border invasion. 

Its forces have seized a large chunk of territory in southern Russia and claim to have made more advances over the weekend, seizing more villages.  

For its part, Russia is also making advances in eastern Ukraine. 

Ukraine's offensive does not seem to have lured many Russian forces from that front in the Donbas.  

Having been on the front foot for the last few weeks, Ukraine is under pressure again and pleading for more military support from the West and greater flexibility in the way it can use it.  

Most of all, it wants to be able to strike Russian targets deeper inside Russia which allies are reluctant to authorise, fearful of the risk of further escalation.

Ukraine's offensive into Russia's Kursk region could go one of three ways, according to the UK's former deputy chief of the defence staff.

Kyiv's top military commander said today that Ukrainian troops now controlled 100 Russian settlements since the start of its invasion into the Kursk region on 6 August.

Speaking to Sky News, Sir Simon Mayall says that, as we move closer to a third year of fighting, the situation in Kursk is pertinent.

"The Kursk offensive could go three ways," says Sir Simon.

"They could expand it. They could keep on the offensive, which would really unsettle the Russian defences, including their logistic support for their troops in Ukraine. 

"It could sit there and draw people away from the frontline, in order to try and pince that off. 

"Or equally, of course, it could backfire on the Ukrainians because they've committed quite a lot of foreign equipment, and they could sit there being just managed by the Russians with no real effect on what's going on in the Donbas."

Sir Simon also says that the invasion into Russia is an "important demonstration" to the West from Ukraine that shows it will not sit back in a war of attrition, which he says they would lose.

"They are going to manoeuvre, they're going to take the offensive, they're going to surprise the Russians," he adds.

"They're going to use the equipment they've been given to keep changing the dynamic with a view."

Volodymyr Zelenskyy says Ukraine has successfully run a test of its first domestic-made ballistic missile.

"It may be too early to talk about it, but I want to share it with you," the president said at the Ukraine 2024 Independence forum in Kyiv.

Mr Zelenskyy congratulated the Ukrainian defence industry on the project but did not provide any further details on the weaponry.

It comes as the president earlier vowed to respond to consecutive nights of Russian missile attacks on Ukraine (see 8.55am post).

Ukraine has taken control of 100 Russian settlements since its invasion into the country's Kursk region, says Kyiv's top military commander.

Speaking via video link on Ukrainian TV, Oleksandr Syrskyi says Ukraine's troops now control 1,294 sq km (500 sq miles) of Russian territory and 100 settlements.

About 594 Russian servicemen were taken prisoner, he adds.

Some 115 Russian soldiers were returned to Moscow and 115 to Kyiv in a prisoner swap last week. 

The map below shows Ukraine's gains on Russian territory since its invasion of the border region...

Indian Prime Minister Narendra Modi says he has "exchanged perspectives" on the war in Ukraine with Vladimir Putin.

Delhi has avoided direct condemnations of Russia's invasion, instead urging Moscow and Kyiv to work together and resolve their difference through talks.

Mr Modi visited Ukraine last Friday and told Volodymyr Zelenskyy that "no problem should be solved on the battlefield".

In a post on X, Mr Modi said he gave Mr Putin his insights from his recent visit to Kyiv and "reiterated India’s firm commitment to support an early, abiding and peaceful resolution of the conflict".

The Indian PM also spoke to US President Joe Biden about the conflict yesterday.

What is India's history with Russia?

During the Cold War, India was supported by the Soviet Union, while the US favoured rival Pakistan.

The Soviet Union used to veto resolutions brought by western nations against India on Kashmir, the liberation of Goa and Bangladesh.

In turn, India abstained in UN resolutions against the Soviet invasion of Afghanistan. It also voted against condemning Russia's actions in Chechnya and Abkhazia.

Over the years the relationship strengthened, particularly in the defence sector, with Russian military hardware forming an overwhelming chunk of India's defences.

Sir Keir Starmer has been speaking at Downing Street this morning, where he was asked about whether Ukraine should be able to use Storm Shadow missiles inside Russia.

Kyiv has repeatedly asked for permission to use the British-donated weapons to help "turn the tide of war", though the UK has rebuffed requests amid fears of escalation.

The PM said that hasn't changed, telling reporters that "new decisions or different decisions have been taken" in relation to the matter.

"We have put additional resources in, in terms of what we're providing, both money commitments and weapons commitments," he said.

"As I've said to President Zelenskyy and the people of Ukraine, we will stand with them for as long as it takes.

"I'm not going to get into tactical questions about the use of weapons, for reasons which I know you'll understand."

What are Storm Shadow cruise missiles?

The missile has a strike capability of nearly 200 miles (300km) - meaning it would potentially allow Ukraine to hit further into Russian territory.

The Storm Shadow was originally developed as a project between the UK and France in the early 1990s.

It was used in Iraq in 2003, while France, Italy and the UK used it in Libya in 2011.

The missiles have also been used to bomb Islamic State targets in Syria and Iraq.

More now on the recovery operations being undertaken by Ukrainians following last night's Russian missile attacks.

Volodymyr Zelenskyy said rescue operations were ongoing at the sites of last night's attacks, which he said killed four people and injured 16 others.

Below, residents of Zaporizhzhia, which sits in southeastern Ukraine, can be seen searching through rubble for their possessions.

Russia has condemned Ukrainian moves to ban a Moscow-linked branch of the Orthodox church, describing it as an attack on Christianity and a blow to freedom of religion. 

"The Kyiv regime, unfortunately, continues to show its true nature. This is an open attack on freedom of religion, an attack on the Orthodox Church as a whole, and an attack on Christianity," Kremlin spokesman Dmitry Peskov told reporters.

It comes after Ukranian lawmakers voted last week to ban the Russia-linked Ukrainian Orthodox Church (UOC). 

Volodymyr Zelenskyy hailed the vote as a step to strengthen Ukraine's "spiritual independence" and signed it into law.

For context : Kyiv has accused the UOC of abetting Moscow's war by spreading propaganda and harbouring spies.

While the majority of Ukrainians are Orthodox Christians, the faith is split between the UOC and the independent Orthodox Church of Ukraine, which was recognised by the world Orthodox hierarchy in 2019. 

The UOC began to distance itself from Russia after Moscow's February 2022 invasion of Ukraine, and has denied it has links with "foreign centres."

But criminal proceedings, including treason charges, have been launched against dozens of its clerics angering the Kremlin and the Russian Orthodox Church.

Russia has accused the US of helping Ukraine launch its attack on the Kursk border region on 6 August. 

Around a thousand Ukrainian troops pushed into several miles of the Kursk region, which sits on Russia's western border, in an attack that largely appeared to take the Kremlin by surprise. 

Russian foreign intelligence chief Sergei Naryshkin has now said that Moscow does not believe the incursion was planned alone, the TASS state news agency is reporting.

Russia has charged - without providing any evidence - the US of helping Kyiv launch the lightning attack.

What did Ukraine take?

After the invasion into Kursk, Oleksandr Syrskii, Ukraine's commander-in-chief, claimed Ukraine's forces controlled about 1,000sq km (386sq miles) in the region.

Russia's border with Ukraine is "under control" after Ukraine tried to force into the southern Belgorod region (see 9.24am post), according to Kremlin officials.

The head of Russia's western Belgorod region said the situation on the border with Ukraine was "difficult but under control" after reports of the Ukrainian attack.

Belgorod and other border areas have been on high alert since Ukraine launched a lightning attack on neighbouring Kursk region three weeks ago and carved out a slice of territory from which Russia is still fighting to eject it.

Regional governor Vyacheslav Gladkov said: "There is information that the enemy is trying to break through the border of the Belgorod region.

"According to the Russian defence ministry, the situation on the border remains difficult, but under control. Our military is carrying out planned work. Please remain calm and trust only official sources of information."

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