Doane's 40-Mile Hydrobout


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  • Pub No.: 5120
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Here are the lines, offsets and specifications for the famous Doane Hydrobout--a one-step uitility hydroplane runabout which has been highly developed by Art Doane.

The advent of the outboard hydroplane had both its good and bad consequences. On the good side it taught us that the placing of a step in a boat could and almost always would increase the speed if the boat was of the planing type. We learned where this step should be placed, and a lot of correlative features concerning steps. On the bad side were noted many spills and a gemeral “greased pig” behavior of hulls. Most of these handling difficulties have been attributed to their proper place: That is to the motor and the placement of weights in an outboard hull, but in some quarters the notion got around that the step caused the chine to dig and that step hulls weren’t as easy to handle or as stable as straight bottom planing boats. That notion is a lot of poppycock, fit to be classed with the mistaken notion that Hoover was the cause of the depression. With a properly designed step bottom the handling is no different from an ordinary runabout, and the speed is, of course, generally about ten miles an hour faster for a given power. The reason for this increase in speed is because the water breaks away from the hull, and air is admitted at a point where atmospheric pressure is beginning to turn into a vacuum tending to further load the boat, depress the stern, and slow her up. The step boat, properly designed, just as an airplane or a motor boat should be (with respect to planing areas, weights, etc.), is drier, softer riding, worlds faster, and as sweet handling as the old-fashioned straight bottom stuff.

12 pages, 2 plate(s)


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