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Technical Paper
1919-01-01
ARCHIBALD BLACK
THIS paper describes the various types of radiator installations in use. Tabulated data on several makes of radiation and on successful airplane radiator installations are given. A brief review of laboratory tests is made and the features to be considered in design and manufacture are discussed. The author concludes by cautioning engineers against attempting to base new designs entirely upon experimental data, without comparing the tentative design with existing successful installations.
Technical Paper
1919-01-01
H C DICKINSON
Abstract THE approaching exhaustion of the petroleum supply, from which nearly all of the available internal-combustion engine fuel is produced, raises two vital questions, upon the answers to which will depend the future of the automotive industry. These are (a) what fuels are to be available, from the point of view of the engine designer and (b) how much transportation can be secured from the fuel used. It is not certain that satisfactory engines can be developed to handle a wider range of fuels than those used at present. It is therefore not clear whether the trend of development will be toward two or more different grades of fuel, or toward a single mixed fuel to be used in all engines ultimately designed to burn it. The development of different grades of fuel may result in a light fuel, such as gasoline, and a heavier-fuel, such as kerosene, or an even heavier product, each to be used in engines of different designs, the heavier-fuel engine being used for tractor and possibly truck service.
Technical Paper
1919-01-01
F. G. COBURN
THE Navy Department established the Naval Aircraft Factory (a) to assure a part, at least, of its aircraft supply; (b) to obtain cost data for the Department's guidance in dealing with private manufacturers, and (c) to have under its own control a factory capable of producing experimental work. The history of this development is given in some detail, including statistics of size, valuations and output. The problems discussed include (a) layout and expansion, describing the original plant and how idle plants in the industrial world were utilized for the production of parts that were afterward assembled at the factory; (b) outside production, outlining the placing with plants of contracts for flying-boat hulls, wings, metal parts, tanks, engine foundations, tail surfaces, etc.; (c) personnel, telling how both men and women were trained in a special school; (d) engineering, covering built-up wooden parts, research in defects of wood, securing of proper material, organization of inspection, traveling representative, traffic and follow-up forces, etc., to expedite production; and (e) production methods, showing that by careful scheduling and subsequent working to schedule time-reduction was secured.
Technical Paper
1919-01-01
H C RICHARDSON
Technical Paper
1919-01-01
J H TOWERS
Abstract THIS article, written shortly after the signing of the armistice, deals with the Naval aviation situation at the outbreak of war and its development during the war, ending with a brief discussion of the probable future lines of development. Figures are given showing the expansion occurring during the nineteen months of warfare, and the different ways in which the various types of aircraft were used. Future development is treated briefly, but that logical assumptions were made is indicated by the fact that the year which has elapsed since the article was written has shown a very decided trend along the lines indicated.
Technical Paper
1919-01-01
J G Vincent
Technical Paper
1918-01-01
ERNEST GOLDBERGER
Technical Paper
1918-01-01
ABNER DOBLE
Technical Paper
1918-01-01
D W Taylor
Technical Paper
1918-01-01
C F KETTERING
Technical Paper
1918-01-01
ARCHIBALD BLACK
Technical Paper
1918-01-01
WILLIAM B STOUT
Technical Paper
1918-01-01
FAY LEONE FAUROTE
Technical Paper
1918-01-01
J EDWARD SCHIPPER
Technical Paper
1918-01-01
J EDWARD SCHIPPER
Technical Paper
1918-01-01
LOUIS ILLMER
Modern requirements have already forced the rotative speed of high-duty gas and oil engines to a point where the difficulty of heat-flow control, especially with cast iron cylinders, tends to arrest further progress in this direction. In view of this inherent limitation the art of high-speed engine design can best be advanced, not by continued experimental exploration, but rather by first establishing the basic principles underlying heat-flow effects. The purpose of the present paper is to demonstrate that every internal-combustion engine of given size and type has a safe speed limit and that this can be predetermined upon a rational heat-flow basis. This paper provides an explicit method of procedure, by means of which the design characteristics of a normal gas or oil engine can be critically analyzed for heat-flow effects. In addition, the matter of relative heat-flow in two versus four-stroke cycle engines, which has been the subject of much controversy, is investigated and certain conclusions are drawn as to the merits of each type.
Technical Paper
1918-01-01
A F MILBRATH
Technical Paper
1918-01-01
A W COPLAND
Technical Paper
1918-01-01
G W CARLSON
Technical Paper
1918-01-01
E W DEAN
Technical Paper
1918-01-01
V E CLARK
Technical Paper
1918-01-01
JESSE G VINCENT
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