Harper's boating book for boys; a guide to motor boating, sailing, canoeing and rowing (1912)
Davis, Charles G. (Charles Gerard), 1870-1959, ed · New York, London, Harper & Brothers · leaf 304
(as in thecase of The Bug) there are two flat surfaces, one forward andone aft. Such a boat is called a biplane, meaning two planes.Some boats have three planes {Breeze I, for instance), somefour, five, six, or more; but anything over two planes issimply referred to as a hydroplane, and the number… … EDITH II. A TWENTY-FOOT RUNABOUT
Boats and boating
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