by Bruce N. Crandall
LOA 8' 1", BEAM 42", DISPLACEMENT 90 LBS.
If you (or your boy) have a yen for speed,but are faced with a small-outboard budget, this inexpensive and easily built boat may be just your ticket
Here’s an easy-to-build, inexpensive little boat that utilizes the simplest and most efficient type of hydroplane bottom. While an experienced driver can use more horsepower, it is especially designed for the young driver who wants to get the greatest speed possible from the small and inexpensive 5 to 7-hp outboard motors. Standard types of racing hydroplanes cannot be expected to give the best speed and efficiency with these small motors, because they are designed for much higher speeds, with racing motors of much greater power. The planing surface of this design is a simple flat plane that is absolutely straight fore and aft and from side to side. No attempt has been made toward soft riding, as speed and safety are the only considerations. The dimensions of the planing surface have been calculated for best efficiency with a driver weighing 100 to 150 pounds and at speeds from 20 to 24 mph. Nontrip chines for safety on turns have been incorporated in the simplest manner, and the whole hull is designed for easiest possible construction. The construction is so simple, in fact, that all dimensions are given directly on the frame drawings, and no Table of Offsets, lofting (laying down the lines)are necessary. A boy can build ithimself, and in a small corner of the shop.
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