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Aviation History
1945
1945 - 0678.PDF
APRIL 5TH, 1945. The time spent in maintaining an engine at maximum efficiency should be taken into consideration when judging the reliability of that engine. Whereas design simplicity reduces working parts and correspondingly minimises risk of failure, such simplification is justified only providing performance efficiency and reliability are also improved. "Bristol" sleeve-valve engines are a supreme example of this fact; the smooth sleeve action eliminates vibration and shocks . .. there are no tappets to adjust or springs and rocker <7 mechanism needing constant inspection and replacement. Coupled with these advantages, the simplicity of the sleeve-valve principle .: offers greater economy in fuel and oil... inevitable result of simplified design, and further support for the assertion that the " sleeve- •.. valve will be the principle behind the power of peacetime air 3 transport. .. when economy and reliability will be the ^ ^^H -sj major factors deciding aero- engine design. H B R O O P L N C O M P A Printed io Knglan.i for the Proprietors, FUIIHT PCBUSHIIHJ COHPAXY LIHITEH, Domet House, Stamford Street, London. S.E.I, by THR CORKWALL PRKSS LTD., 1-0, Pan* Gar Jen, London. »•*- •1 Flight •• can be obtained abroad from the following : AUBTHJUA and NEW ZKAUND : Gordon * Ootch, Ltd. INDIA : A. H. Wheeler * Co. CANADA : Imperial N«ws Co., Gordon ft Ootch, •• SotiTB ITIUCA: Central News Agency. Ltd., Wm. Daw*ou & Sons (8.A.), Ltd. USITBD STATES : The International New Cn. Entered u Second clas« at the New York, U.S.A., Post OUR"
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