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In an aircraft, a revoluble thrustproducing system including a hub, a generally radially disposed airfoil blade pivotally secured to and carried by said hub by a corresponding single pitchvarying bladeroot pivot whose axial line of pivotation is fixed in relation to the longitudinal axis of the...
THE adaptation of aeroengines to high altitude flight raises serious problems in connexion with the supercharger. This article is not concerned with a justification of the interest shown, but with the theoretical necessity for the compressorthe supercharging function of which is the practical...
The firm of A. C. Wickman Ltd. has recently put on the market a number of special instruments for the accurate measurement of tools and gauges. Some of these instruments are suitable for production use where exceptionally fine limits are required. The following article describes a few of the...
THE five principal divisions of aeronautical sciencemilitary aviation, research, production, operation, and air transportafford the aeronautical engineer all possible opportunities for employment.
THE Purchase Tax is in essence a tax which is payable by the consuming public, although the tax will generally be levied at some stage in the history of the goods, prior to their delivery to the public.
Timber is one of the essential products which has to run all the risks attendant upon shipment from overseas but, even after surviving all these dangers, on arrivalat the sawmill, in being cut up into the required sizes of boards etc. a large percentage is reduced to waste as sawdust. It seems a...
THE takeoff of a tricycleundercarriage aeroplane has been carefully analyzed and the effects of slipstream included. Wheel position relative to the C.G. is shown to have an important effect on the takeoff run and flaps may or may not adversely affect the run. Elevator power should be high yet...
IN the 1940 Wilbur Wright memorial lecture on the future of British Civil Aviation Dr. Roxbec Cox has stated that the study of passenger convenience leads to consideration of over weather flying and that the study of improvements in safety leads to consideration of flutter prevention. He has...
IN this issue is concluded a series of articles on jigging for aeroplane production which has been running in AIRCRAFT ENGINEERING since October last year, with the exception of the first two months of this year when, for reasons outside our control, publication of it had to be temporarily...
From Xray studies of ironnickelaluminium alloys a new phase a was discovered. Although, in the surface layers of these alloys an unstable phase is observed in the early stage of annealing, this phase disappears entirely with prolonged annealing, the Xray pattern showing the coexistence of the a...
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