CPM Model Sailboats

J Class RC Sailboats

Header Content Region

Insert text, image or banner ads here, or just delete this text and leave this area blank!

portfolio1 portfolio2 portfolio3 portfolio4 portfolio4


1/25 (36") Scale America's Cup high performance model sailboat

EC12 Meter

5ft Replica of the 1962 Americas Cup 12 Meter

Star 45

45" Scale Model of the Olympic Star Boat

J Class Boat-Shamrock V

1/16 (8'-10')Scale Replica of the 1930's America's Cup Class Yacht

RMG Sail Winches

High Performance sail control winches

small portfolio1 small portfolio2 small portfolio3 small portfolio4



J Class 

The J Class models are 1/16th scale hulls of the J Class yachts that sailed for the America´s Cup from 1930 through 1937 as well as the yachts that were converted to the J Class and competed with the America´s Cup yachts in club regattas. The models are the largest recognized class in the AMYA with hull lengths ranging from about 7 feet in length to 9 feet in length and weighing between 65 and 115 pounds. The models carry from about 3,000 to 4,000 square inches of sail on masts that are 8 to 91/2 feet above the deck. The difference in sizes of the models is driven by the different sizes of the full size yachts.

There were ten yachts built to the J specifications between 1930 and 1937, six in America and four in Britain to compete for the America´s Cup. Another eight existing large yachts sailing at the time were converted to J specifications for use as trial horses and as competitors in local yacht club regattas. Drawings for all of the original J yachts and those converted to the J class are available from several museums such as the Mystic Seaport Museum, the Smithsonian and the Herreshoff Maritime Museum.

The J Class is truly one of the most beautiful class of models in the AMYA reflecting the sailing power and grace of the original classic yachts of the 1930s.


CPM is now producing the Shamrock V
Original Plug and mold by Dave Brawner

Shamrock V Fiberglass hulls, Rudders, Mast fittings.

Current prices for the Shamrock V are as follows-
Hull - $580.00
Rudder w/Shoe - $175.00
Ballast (3 Piece) - $200.00


Fully Built Ready to sail Shamrock V J boat cost estimate.


CPM also Builds the J Boat Range.

Mold and tooling by Gary Mueler.
Email us for details and Costs.

Shipping is additional



Are you  interested in building a J Boat?

Take a look the Shamrock V Build Web site for all aspects of building a J Boat



Build queue Deposit Policy

To be placed into the CPM Build Queue a min deposit of $100 is required. Due to the custom nature of building fiberglass hulls and components this deposit is NON refundable.


J Boat Video's


Shamrock V #104
Maiden Voyage
Sandy Point State Park
Annapolis, MD
Custom Shamrock V
Deck Layout
Custom Shamrock V Maiden sail

On Board Video from gimbaled GoPro Camera

Shamrock V #104
Close up
Sandy Point State Park
Annapolis, MD

J BOAT Photos and Construction


Custom Painting Deck construction Finished boat ready for the
maiden voyage
Rig Construction


Laying up the Shamrock V Pulling apart the Mold New Hull all ready to build 3 Shamrocks V's at the start
of the full build process. l to R
CPM #105
Mark Fleckenstine #104
Kevin Maclellan #1300

2011 J-Boat National Championships - Mystic, CT


Chuck Luscomb and CPM's David Ramos take 1st Place at the 2011

J-Boat National Championships with a CPM Shamrock V.

New CPM Shamrock V's owners Kevin Maclellen and Mark Fleckenstein in
their Maiden J-Boat regatta finished finished 4th and 6th


CPM's David Ramos 2013 J-Boat National Champion sailing the Shamrock V

CPM's David Ramos 2014 J-Boat National Champion sailing the Shamrock V

CPM's David Ramos 2016 J-Boat National Champion sailing the Shamrock V

CPM's David Ramos 2018 J-Boat National Champion sailing the Shamrock V






slide up button