Ledeboer, John H. (John Henry), 1883-1930 · London : [s.n] · leaf 275
ers of them being tenoned into the sides. The main in length, and glued in place. or rear float is indicated in Fig. 9. It will be noticed that The steel piano wire shafts for the propellers are forced square plates of tin are pinned to each side of it, on to which through a hole drilled in the… … between the boss and the bearing ; these washers can be the 35 s.w.g. bracing is also taken off it, as in the detail conveniently filled with grease for lubricating purposes. drawing. The tin plates are fixed to the sides above the In testing the model I would recommend a hand-launched water level,…
