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Aviation History
1945
1945 - 1244.PDF
Advertisements FLIGH'I [ONE 28TH. 1045 S L E EVE VALVE • t towel Predominating factors governing aero engine design of the future will be all-round economy and minimum maintenance The " Bristol " sleeve-valve engine — based upon a principle of exceptional simplicity—has a high efficiency relative to these factors. With a " Bristol " sleeve- valve engine there is no gnnding-in of valves ; no spring inspections or replacements ; no tedious tappet adjustments , the only maintenance necessary is the usual servicing of ignition and carburettor ; and occasional filter checks Coupled with this is economy in fuel and oil . . inevitable result of simplified design, and logical support for the assertion that the sleeve-valve will be the principle behind the power of the ftiture. HERCULES sleeve-valve aero engines power the H ALII'AX III, LANCASTER II, STIR- LING and many other famous front-line aircraft. THE BRISTOL AEROPLANE COMPANY LIMITED BRISTOL ENGLAND
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