Handicraft for handy boys; : practical plans for work and play with many ideas for earning money, (1911)
Hall, A. Neely (Albert Neely), b. 1883, Hall, Norman P., ill · Boston, : Lothrop, Lee & Shepard · leaf 370
—A More Elaborate Monoplane Model. strength of materials used must be carefully considered,that each part must be carefully tested as prepared, thatthe planes must be warped or bowed to the same degreeat both ends, and that an efficient propeller is one halfof the secret of producing a… … tDGE STBIP^ DOTTEd-.LlNIES^SHOW METHOD of bracfng.and warpinsPlanes ^^^^ EDGF strip 2i_ Fig. 398. — Plan or Top View.(Scale i = i.) i^ri)
Woodwork · Toys · Amusements
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