Full Size Printed Plan Scale 1/12 ROUGH WATER OFFSHORE RACER for Radio Control
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Full Size Printed Plan & Building Notes
No material plans only
ROUGH WATER OFFSHORE RACER
Full Size Printed Plan on a sheet 47" x 34" 20lb bond
Three page article with building notes and photos
Length 45 in
Beam 15 in
Gas or Electric
Construction is quite simple and conventional for this type of hull, except for the chine strips which are not, however, difficult. The drawing gives the essentials; the keel is 3/8 in. ply with 3/8 in. doubling between the bulkheads, which are 3/16 in. ply. The hull is single-skin planked, fore and aft, with 1/8 in. spruce, as is the deck, and 1/4 x 1/2 in. spruce stringers (two each side plus inwale) facilitate this. Although this may seem rather on the hefty side, the weight is not excessive - just about 13 lbs. You may wish to build from fiberglass
The prototype was designed by G. L. Watson of Glasgow and is 45 ft. long and 15 ft. beam. A round bilge hull form was used, fitted with a number of spray strips, like narrow clinker planks
upside down, on the wetted hull area. This innovation, christened a ragged chine, caused considerable speculation and interest in the full-size world, and was discussed in various articles in such publications as Motor Boat and Yachting.
I was fortunate in obtaining drawings and the permission of the designer to build a model; the scale is 1/12 and the power unit a Merco 61 series Il.