1930 Frank C. Paine Design J-Class Yankee

Sometimes you get the chance to spend a little more effort on a model. In this case I was fortunate to have two clients who wanted the same model at the same time. This means I was able to add detail that I would not be able to do if just one person asked for the design. After all, there is a question of cost one has to consider. Imagine what we can do if we had ten people asking for the same model?

Because of this opportunity, this model will have a clear drawing of the assembly steps, some extra internal supports for servos and shrouds, a keel design that reflects the latest research on this yacht, and a number of interesting deck fixtures.

So, let’s get to the design!

Here is the starting point:

o Actual boat, from Wikipedia:
 LOA: 126’
 LOA: 83’
 Beam: 22’ 6”
 Draft: 14’ 6”
 Builder: George Lawley and Sons, Bristol, Rhode Island
 Designer: Frank Cabot Paine
 Ordered by John Silsbee Lawrence
 Launched: 1930
 Scrapped: 1941
o Scale model dimensions, at 1/16 scale
 LOA: 94 ½”
 LWL: 62 ¼”
 Beam: 16 7/8”
 Draft: 12 7/8” (including 2” allowance for AMYA J-class R/C boats)


Starting Point – The Original Plan Sheets

Here we have a look at the starting point of the design. These pictures are from the book of America’s Cup yacht design and give a nice impression of the yacht.


Fig.1 – General Outline

Fig.2 – Basic View of the Rig


Latest Information on the Design

I added the information that Earl Boebert, of Albequerque, NM, had uncovered in his research on the improvements that were made to Yankee  in 1934.

  This line view was included in the starting material I received to do the project. There was no side view or dimensions. No matter; I’ve done models with much flimsier starting information.
  The top of the cover page of Earl Boebert’s paper on the improvements made to Yankee’s bow in time for the 1934 America’s Cup.
  Detail of the drawing that Earl used in his paper. This shows the outline of the shape of the new bow.


Building up the 3D Model

With a little extra scope to the project, I was able to add some interesting detail to the model. We have a proper king plank designed for eigth-inch planking. We have some parts that can be used for 3D printing, if we wish, and we have a fairly complete set of parts for deck structures.

Fig.6 – A Broad Deck View
Fig.7 – A Large Forward Hatch
Fig.8 – Cabin and Dorade Box Details
Fig.9 – King Plank Details


The Drawing

With a bigger scope, I was able to create a complete assembly drawing of the model, with a parts list and exploded views of each structure.

Fig. 10 – Page 2 of the drawing



Construction photos will be added as they are received from the builder.

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