Some developments in aircraft design and application during the War (1919)
Weir of Eastwood, William Douglas Weir, Viscount, 1877-1959, North East Coast Institution of Engineers and Shipbuilders · [S.l. : s.n.] · leaf 56
ciency have been obtained by eliminating the valve tappetrods and substituting overhead cam shafts operating directly onthe valves. Further economies have been effected by theemployment of aluminium for the cylinders fitted with eithersteel or cast-iron liners. Pistons are now universally made… … Fig. 40.—230 Puma (Siddeley). The question naturally arises, how is it that suchresults have been obtained in such a short time andin face of so many difficulties with regard to labour andmaterial. In the first place, the result has been obtained by thefree use of money; the question of expense…
Great Britain. Royal Air Force · World War, 1914-1918 · Aeronautics, Military
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