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Viewing 19861 to 19890 of 20059
1936-01-01
Technical Paper
360070
V. H. Soucek
1936-01-01
Technical Paper
360078
F. W. Pennoyer
1936-01-01
Technical Paper
360121
Raymond W. Young
DURING the past decade the general trend of aircraft-engine design has continued toward increased piston displacement, higher crankshaft speed, higher brake mean effective pressure, and improved materials. These changes have had a marked influence on increasing the overall performance of the airplane by improving take-off, bettering climb, permitting higher cruising speeds at greater altitude, increasing periods between overhaul, and improving the reliability of the powerplant. Although of secondary importance until quite recently, today fuel economy has become a major objective in both military and commercial operation. Fuel consumption is a function, generally speaking, of engine design, of the properties of the fuel itself, and of the procedure for introducing and regulating the fuel-air mixture in the operation of the powerplant.
1935-01-01
Technical Paper
350099
E. S. Dennison
THE paper describes a procedure for analyzing the performance of an internal-combustion engine. It is first shown that the characteristics of ideal cycles can be conveniently represented with the help of a fictitious “fuel mean pressure” which is proportional to the useful heat input. The diagram so obtained is used to represent certain ideal Otto and Diesel cycles. It is pointed out that actual performance can be similarly expressed. A simple correction for the variation of atmospheric conditions is then introduced. Examples from tests are used to show that this correction is in accordance with actual experience. The final form of the proposed diagram embodies the correction. It is then shown that the performance of a cylinder as it appears in this diagram is a measure of the success of the designer in dealing with factors lying within his control, as distinguished from those arising from the conditions of operation.
1935-01-01
Technical Paper
350072
F. M. YOUNG
1935-01-01
Technical Paper
350065
S. B. Shaw
1935-01-01
Technical Paper
350021
G. M. Maverick
1935-01-01
Technical Paper
350028
A. F. McDonald
1935-01-01
Technical Paper
350030
W. W. CHURCHILL
1935-01-01
Technical Paper
350003
T. L. Preble
1935-01-01
Technical Paper
350005
Karl K. Probst
1935-01-01
Technical Paper
350034
Pierre Schon
1935-01-01
Technical Paper
350032
C.F. Becker
1935-01-01
Technical Paper
350040
J. F. Winchester
1935-01-01
Technical Paper
350046
H. D. Allee
1935-01-01
Technical Paper
350086
J. F. Campbell
THIS paper covers in a general way the development of a complete fuel injection system, including fuel injector, discharge nozzle, control system, fuel system, etc., and the application of the system to Pratt and Whitney Wasp engines, Wright Aeronautical Cyclone, Curtiss Conqueror and Allison V-1710 engines, also the installation of the Pratt and Whitney Wasp engine in service airplanes and the performance obtained with the system.
1935-01-01
Technical Paper
350100
J. H. Kindelberger, J. L. Atwood
ONE of the most essential points in the development of any airplane is the necessity for complete cooperation between the operator and the contractor in regard to necessary and desirable features to be incorporated, and this is particularly important for a commercial-transport airplane. This coordination was carried through to a remarkably efficient culmination in the development of the Douglas transport for T.W.A. Points discussed include arrangement of cabin and cockpit, seating facilities, upholstery, elimination of vibration, heating and ventilating, soundproofing, toilet facilities, lighting, vision and maintenance. The care with which all these practical considerations were worked out is discussed, and special emphasis is laid on the important points of soundproofing and maintenance in which a remarkable degree of perfection has been attained.
1935-01-01
Technical Paper
350010
WILLIAM LITTLEWOOD
1934-01-01
Technical Paper
340020
R. N. Janeway, L. R. Baker
1934-01-01
Technical Paper
340023
H. W. Drake
1934-01-01
Technical Paper
340013
E. L. TIRRELL
1934-01-01
Technical Paper
340014
Lowell H. Brown, Herbert Chase
1934-01-01
Technical Paper
340043
A. C. Staley
1934-01-01
Technical Paper
340046
W. C. Thee
1934-01-01
Technical Paper
340044
S. H. McCrory
1934-01-01
Technical Paper
340031
Martin Schreiber
Viewing 19861 to 19890 of 20059