rc marblehead yacht

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The Marblehead is a medium-sized yacht providing exciting performance and the ability to handle most sailing conditions if rigged properly. This development class is restricted in overall length and sail area.

The Marblehead is considered the leader in the use of advanced construction materials and techniques.

This class is undergoing a popular resurgence in Sydney with 3 new designs being built for the recent NSW Championship, with 2 of these being home built.

50" long, 800 sq. inches sail area.

Marbleheads Are Sailed At...

Workers Hubertus Model Boat Club

Illawarra radio yacht club, lastest marblehead news & results....

Close of 2023 Message from NSWRYA President

2022 NSW International Marblehead State Championship

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The M or Marblehead Class, sometimes called the "50/800", is a remote-controlled high performance development class. It's original concept in the 1930's was to produce the largest model that would conveniently fit in the standard American car of the time. The class has been highly developed over the years to produce a high performance model that can be sailed in a wide range of conditions, assuming the owner has the appropriate rigs. Boats are available from several suppliers who can provide them from basic kit form to fully assembled.

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Show photos from latest 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995

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Status of Class: Adopted Administrative Body: IMCA

The Marblehead class (M) is probably the most exciting to sail with its minimal rule structure and modern construction techniques a modern M will usually be made of carbon fibre and kevlar with full carbon rigs. The rules do allow for most boats from the mid 90’s onward to be modernised and still hold their own in current fleets.

This is quite often referred to as the Formula One of Radio Sailing.

• Marblehead Class GBR Fixtures here
• Marblehead Class International Fixtures here
• Contact the Marblehead Class Captain here
• International Marblehead Class Association Website here
• IRSA Marblehead Class website here
• Marblehead GBR website here
• Marblehead Class Rules here
• Marblehead Measurement Procedure here
• Marblehead Class Measurement Forms here
• Marblehead Boats For Sale or Wanted here
• Please visit our  Knowledgebase  or  Q&A  for more help
• You will find Q&A relating to the Marblehead Class here
• previous post: International One Metre (IOM)
• next post: Ten Rater Class (10R)

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The Marblehead (M) class is probably the most exciting to sail with its moderate size and light weight combined with high manoevrability and stability. Essentially a box rule with minimal constraints. A modern M will usually be made almost entirely of carbon fibre - hull, foils, spars and fittings.

The class was the first to adopt hi tech construction in the early 90s and development since then has been limited. This permits almost all boats built since then to be compete well in modern fleets.

The class is quite often referred to as the "Formula One" of radio sailing.

BOATSetc is your source for high performance pre-preg carbon RC sail boats. We can provide hulls, kits through to ready to sail boats.

If the famous design of Marc Pomarede succeeds the already successful Tramontane, this boat beats all records at the moment and is on the top of the list internationally and nationally. Based on paper plans, it was our task to develop the complete production process from digitization to mold production. The aim was to make the boat as cheap as possible, but without sacrificing quality. After making numerous prototypes, we are now able to produce boats in reasonable time.

• moulded in pre-preg carbon
• weight of about 320 grams with openings trimmed
• natural black carbon finish
• centre deck with deck level pot recess & foredeck built in
• fin box and mast tube moulding built in
• foredeck cut outs and hatch opening for access to rc are formed
• witness marks for setting out positions of fittings
• hulls are left with the surface as moulded
• bow bulkhead is low density epoxy filler
• stern is already closed

The Nioutram is available as a kit from about 1.490€  (incl Tax plus shipping)

For details about products, pricing and availability Contact us This email address is being protected from spambots. You need JavaScript enabled to view it.

Quark is the current design of our technology partner SAILSetc. Suitable for use with swing rigs or traditional rigs, QUARK is capable of performing well across the wind speed range. Characteristic of SAILSetc designed boats is their ability to perform for sailors of all skill ranges and in a wide range of conditions. Not only can they give excellent results for some of the best sailors (there were three QUARKs in the top 6 places at the 2014 world championship) but they can also give better results for sailors lower down the finishing results. This is partly due to their reliability imparted by the build quality and partly due to the handling qualities imparted by their fundamental and detail design.

• recesses for the snap in/out rigging screw system

The Quark is available as a kit from about 1.950€  (incl Tax plus shipping)

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Model Boat Builders Plans: Marblehead Class Yacht Plans

The Marblehead class boats are light, responsive and very fast. This ISAF RSD international class rule is ‘open’ allowing great design and construction freedom within the main speed determining parameters restricted to 1290mm length, 700mm draught and 0.5161 square metres of measured sail. Ultimate efficiency and excellent performance has developed within these simple limits. Please Note: These plans are printed to order and take approximately 7 days for us to obtain.

Monocat - Marblehead Class Yacht Model Boat Plan

Cumulus - Marblehead Class Yacht Model Boat Plan

Monarch - Marblehead Class Yacht Model Boat Plan

Rigging And Fittings For Marblehead Yachts Model Boat Plan

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IRSA Marblehead Class

The IRSA Marblehead (M) class is probably the most exciting to sail with its moderate size and light weight combined with high manoevrability and stability. Essentially a box rule with minimal constraints. A modern M will usually be made almost entirely of carbon fibre – hull, foils, spars and fittings. 

The class was the first to adopt hi tech construction in the early 90s and  development since then has been limited. This permits almost all boats built since then to be compete well in modern fleets.

The class is quite often referred to as the “Formula One” of radio sailing.

The Marblehead class is managed by its own International Class Association, the IMCA. Please visit the class website at  www.marbleheadclass.org  

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Marblehead Class

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The SAILSetc range of products for the Marblehead class has been constantly refined since 1978 and provides for everything from a completed boat down to the smallest component part.

The Marbleheads built by SAILSetc have had a long run of success at world championship level:

3rd 1986 NO SECRET, 2nd 1988 HUSH HUSH, 5th 1990 ENIGMA, 1st 1992 PARADOX, 1st 1994 PARADOX, 1st 1996 PARADOX, 1st 1998 RAD, 2nd 2000 ROK, 2nd 2002 PRIME NUMBER, 2nd 2006 ROK, 2nd 2012 PRIME NUMBER, 2nd 2014 QUARK, 3rd 2016 QUARK, 6th 2018 QUARK.

Characteristic of SAILSetc designed boats is their ability to perform for sailors of all skill ranges and in a wide range of conditions. Not only can they give excellent results for some of the best sailors (there were three QUARKs in the top 6 places at the 2014 world championship) but they can also give better results for sailors lower down the finishing results. This is partly due to their reliability imparted by the build quality and partly due to the handling qualities imparted by their fundamental and detail design.

The boats previously supplied by SAILSetc are now available from BOATSetc, a new entity located in Germany. The moulding quality is superb leaving the builder with only the task of adding the foils, structural component parts and fittings before going on to add rc and rigs. 

BOATSetc - [email protected] - www.boatsetc.eu

BOATSetc and SAILSetc can supply carbon pre-preg hulls for the Marblehead QUARK and the component parts and general arrangement plans required to complete them. We welcome enquiries and orders from individuals and other builders, in the UK and elsewhere, who want to purchase hull mouldings or kits for these boats. Please go to the class category sections of this website to find more information.

Please see the Licensed Builders page for contact details for the many other builders who are producing our designs.

SAILSetc will continue to offer rc installation, rigging, optimisation and measurement for QUARK.

SAILSetc foiuls, ballast, spars, fittings and sails provide an optimised and compatible range of products with which to equip any Marblehead, whether from SAILSetc or from another source.

The complete range of products in any category and for any class can be found in the Products by Category section.

Voilier Classe M

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Contact Jack

[email protected]

The club has a new website where all current and future information

will be posted.

Please follow the link below to our new site:

www.themmyc.org

NEWS 2024 Season Racing Schedule Coming Soon American Marblehead Class Website   1930 Model Yachting booklet          

Birthplace of the "Marblehead Class" and home to the new " American Marblehead Class" . If it's a Marblehead we sail them!

We also have a large fleet of CR 914 s sailing as well as Dragon boats ... and International, AMYA Ms .

Anyone interested in learning about, watching, or participating in the sailing of these yachts check out our 2019 schedule under the "Racing Information" tab to see our schedule.

In the schedule you'll see three designations for Marbleheads.

AM American Marblehead Class (encompasses all years)

M is for more modern designs @1990 designs and up.

VM is for Vintage Marbleheads , designs up to @1972. It has two divisions, Traditional and High Flye r.

AM stands for the new American Marblehead which encourages any Marblehead from any era to sail together and be scored according to it's division. Marbleheads from all eras, whether home built or professionally built all share two basic traits. They measure 50 inches long and are allowed 800 square inches of sail.

If you've got a boat 50 inches long bring it to the pond and let our group see what you have.

Come on down and join us!

Class: Marblehead

Development class started in 1930s, with maximum hull length of up to 1290mm.

Black Magic

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Snow Goose 2

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T50 CF Racing Sloop

T50 Racing Sloop

Tarroo Ushtey

Tonga Belle

White Rabbit

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The M or Marblehead Class, sometimes called the "50/800", is a remote-controlled high performance development class. It's original concept in the 1930's was to produce the largest model that would conveniently fit in the standard American car of the time. The class has been highly developed over the years to produce a high performance model that can be sailed in a wide range of conditions, assuming the owner has the appropriate rigs. Boats are available from several suppliers who can provide them from basic kit form to fully assembled.

• Latest videos, from 2018

Show photos from latest 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995

Historic News: Independent Marblehead and Tenrater International Class Associations have been formed.

A Foundation Executive has been formed to steer the formation of the new IMCA international association, which is currently a class association within the International Radio Sailing Association (IRSA). This is a positive step forward for the Marblehead Class in that it will be able to more specifically focus on the needs and promotion of the Marblehead Class throughout the world. The Foundation Executive is a group of experienced competitors and administrators in the Radio Controlled sport and will be remaining in place only through 2020 to start it all up and then will call for a General Assembly with executive elections where the Members will take responsibility. The formation of the IMCA will in no way alter or change the process of the coming 2020 WC.

The modern ‘M’ class yacht is a ‘high-tech’ racer, sporting up to 6 measured rigs with trends of profiled rotating masts, unstayed carbon rigs, pocket luff mainsails, pre-preg carbon hulls and fins offering a wide scope for design freedom. At only 1290mm in overall length, the restricted development class rules allow both the professional or amateur designer/builder/sailmaker an attractive avenue to test their knowledge and skills in one of the most exhilarating radio yacht classes in the world. 

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Vintage Marblehead

In 1930 Roy Clough, then commodore of the Marblehead Model Yacht Club, proposed a new class of larger model sailboats. The first published reference we have is from Model Yachting for Oct–Nov 1930. These boats must be “50 inches on deck” (50 in LOA). The sail area was settled at 800 in 2 , and the single most popular class in the history of model yachting was launched. Called variously the “Marblehead,” “50/800,” or “M” class, it had at one time over 1000 registered boats. The class became a national class in the US in 1932 and an international class in 1937. There were many reasons for its popularity: the size of the boat made for a good sailing model in all kinds of weather and was still (by design, it was rumored) small enough to fit in the back seat of a car. The simplicity of the rules contrasted with the other classes of the day, which required extensive measurement to determine whether a boat was legal.

Occasional ruminations, experimentations, and observations on the art and nonsense of building wooden radio control sailboats. Thanks for visiting!

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Frank Russell Design

R/c and model yacht design, plans, boats, sails..

Equation Marblehead 2019:    This design is based on the successful Ellipsis IOM concept, that of correct volume distribution rather than fashionable features with the emphasis on simplicity This design is the result of two Sailing Marblehead prototypes, The Ellipsis 1c and Ellipsis 2a.

After payment is made. I will email you the pdf file.

If you require another format: DXF, or DWG, 2D or 3D or printed paper plan, postage extra.

Gothic Mk3 Marblehead:   Is the latest iteration of the Gothic shape. This design is based on the successful Phoenix Mk 6 and 7 Ten Rater and includes several refinements and two alternate deck designs.

Gothic XP M A narrower 2014 development of the FREE Gothic M Plan

After payment is made. I will email you the pdf file with 10 A4 sheets.

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RC Yacht Design

Design-Infos für RC-Yachten und aktuelle GM-Yachten

Die Marblehead Klasse ist, wie die 10 Rater Klasse, eine der ältesten Klassen der Modellyacht Szene mit einer mehr als 100 jährigen Tradition.

Mein erster eigener Entwurf, den ich noch als Schiffbaustudent erstellte und der noch mit sogenannter Lochkarteneingabe und dem Programm Archimedes berechnet wurde, war die Kalamoun im Jahre 1978. Diese Yacht war über viele Jahre einer der erfolgreichsten Yachten dieser Klasse. Das war auch der Anstoß für die seinerzeitige Artikelserie zur RC Yacht Konstruktion.

1987 entstand der nächste Entwurf einer M-Yacht zusammen mit Karl Beck ebenfalls Schiffbauingenieur. Die Yacht wurde erstmals 1988 auf der WM für RC Yachten in Berlin eingesetzt und belegte einer der vorderen Plätze.

Die M88 war mit einem drehbaren Kohlefasermast von J. Walicki ausgerüstet. Auf dem Bild oben erkennt man eine in den Fockbaum integrierte Wippe mit der sich das Profil und die Achterliekspannung der Fock durch ein Servo verstellen ließ.

Unten der Spantenriß der M88. Wie viele Yachten in dieser Zeit mit ausgeprägtem Radialspant, denn zu dieser Zeit wurden noch Dreieckskurse bei Regatten gesegelt.

2004 habe ich eine neue M-Yacht entworfen und gebaut, die Hydra. Diese Yacht habe ich wettbewerbsmäßig bis 2013 gesegelt, also fast 10 Jahre. 2013 konnte ich mit dieser Yacht noch einen 3. Platz bei einer Deutschen Meisterschaft erreichen. Für mich zeigt das, wie unnötig es sein kann ständig dem neuesten verfügbaren Design hinterherzulaufen.

In den folgenden Jahren habe ich mich dann fast ausschließlich auf die 10 Rater Klasse konzentriert.

Die Hydra hat eine maximale Breite von 19 cm am Deck, bei einer maximalen Breite von 14 cm in der CWL. Letzteres ist ein Bereich, der schon sehr nah an den Breiten heutiger aktueller M-Yachten ist.

Der abgebildete Spantenriss wird die Ausgangsbasis für ein in 2021/22 geplantes neues M-Yacht Projekt sein, wobei sich die Veränderungen auf das Überwasserschiff und eine Überprüfung der Verdrängungsverteilung anhand der Erfahrungen aus der 10 Rater „Kamsin“ Entwicklung konzentrieren werden.

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