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Viewing 8581 to 8610 of 8625
1946-01-01
Technical Paper
460064
W. W. Thayer
1945-01-01
Technical Paper
450206
G. F. BEAL
THE safety and dependability of scheduled air transportation depends, in part, on how practical is the cockpit in which the pilots spend their time and carry on their functions while in flight. The author of this paper, himself a pilot, has compiled here information gained from a questionnaire answered by representatives from every scheduled airline in the country. It appears that these pilots have definite ideas on the improvements that are needed in cockpits, discussed by the author under the following headings: 1. Cockpit window layout (including provisions for all-weather visibility). 2. Instrument panel arrangement. 3. Cockpit lighting. 4. Pilot comfort (including adequate seats, ventilation, and heating). 5. Type, location, and accessibility of controls.
1945-01-01
Technical Paper
450167
GREGORY FLYNN, ARTHUR F. UNDERWOOD
INCREASING engine outputs have required methods to control the piston temperature. The work presented in this paper shows one successful means through the use of a piston of low conductive, correlated with an appropriate rate of piston cooling oil from the engine lubrication system. The effects of coolant temperature, load, and speed over the propeller load curve, and a piston baffle, on piston temperatures are investigated by thermocouples silver soldered in a 6 x 6½-in. diesel, two-cycle piston. Tests indicate that the rate of cooling oil does not have to be excessive to secure adequate cooling. Substantiating data from an 8 x 10-in. diesel engine are given. Steel piston designs for use with jet oil cooling are shown. These are for the 6-in. diesel on which most of the data for the paper were taken.
1945-01-01
Technical Paper
450062
Gordon Hebert
ABSTRACT
1945-01-01
Technical Paper
450020
A. D. Dircksen
1945-01-01
Technical Paper
450003
M. F. Vanik
1944-01-01
Technical Paper
440093
Henry Dreyfuss
1944-01-01
Technical Paper
440098
M. G. Beard
1944-01-01
Technical Paper
440095
Charles W. Morris
1943-01-01
Technical Paper
430083
Maurice Olley
1942-01-01
Technical Paper
420008
N. S. Leichter, R. S. Rosé
1942-01-01
Technical Paper
420132
PAUL A. SCHERER
THIS paper presents a simple and rapid method of determining the performance of cross-flow intercoolers, oil coolers, or Prestone radiators from laboratory tests of a model or basic unit of the cooler. The method lends itself equally as well to the determination of the size of a cooler of any set performance. Due to the comparative rapidity with which these calculations can be made, it becomes, with the use of this method, an easy matter to make a series of calculations to determine the relations between lengths, cooling air flow, and pressure drops, for any desired performance.
1940-01-01
Technical Paper
400151
CLYDE R. PATON, E. C. PICKARD, V. H. HOEHN
1940-01-01
Technical Paper
400159
W. W. DAVIES
1940-01-01
Technical Paper
400135
Herbert Chase
MANY question whether a complete job of air-conditioning passenger cars for all weather conditions can be done at a price which most car buyers care to pay and with assurance that dependable and acceptable results can be guaranteed, Mr. Chase reports in prefacing this paper, a comparative study of existing heating, ventilating, and cooling systems. Some 1939 and many more 1940 car models, he believes, yield greatly improved results in heating the entire car and ventilating it well with all windows closed, but, he points out, the design of such systems is still in a state of flux. Mr.
1940-01-01
Technical Paper
400171
W. E. LAY, L. C. FISHER
THIS paper reports work begun in 1935 at the instigation of the Murray Corp. of America. Methods used in studying the relations between the automobile seat cushion and its function in transporting passengers with greater comfort and less fatigue are described. Constructed for this purpose was a piece of apparatus called the Universal Test Seat, whose dimensions were completely adjustable with arrangements to vary the distribution of the supporting pressure in any manner which seemed most comfortable to the passenger. The authors describe tests made by use of this apparatus, present summaries of some of the results recorded and conclude that, to give the passenger the maximum comfort and least fatigue, the following mechanical objectives should be attained by the cushion: 1. To support the passenger over a large area to get the smallest unit pressure on the flesh; 2.
1939-01-01
Technical Paper
390009
E. L. Mayo
1939-01-01
Technical Paper
390094
Edward C. Wells, E. Gifford Emery
1939-01-01
Technical Paper
390109
R. E. Gould
1939-01-01
Technical Paper
390029
Peter Parke
1939-01-01
Technical Paper
390177
1939-01-01
Technical Paper
390133
E. E. Ellies
PRESENT comfort requirements and design trends, Mr. Ellies contends, have created new demands in passenger-car seating. He points out that the natural qualities of foamed-latex cushioning augur its consideration in meeting these seating problems. Mr. Ellies' discussion includes a review of the various applications of this material in the transportation industry. He also describes the properties of foamed latex.
1939-01-01
Technical Paper
390150
William B. Stout
FUTURE motor-car development, Mr. Stout contends, will follow the functional art of bus and airplane development rather than motor-car precedents. The interior instead of the exterior, he believes, is the basic thing to be studied, pointing out that passenger room has been growing less and less. The car of the future, therefore, he predicts, will have an interior that extends out the full width of the car with no running boards, will have totally enclosed wheels, will have a unit frame and body, the engine in the rear, and either double or sliding doors. The effect of rear-engine construction on ride, bounce control, braking, and traction on muddy and icy roads is explained. New body materials, such as plastics, are looked for on future cars to insulate them from the radiant heat of the sun, especially for roofs. Mr. Stout sees light-weight air-cooled engines in future cars, weighing not over 3½ lb per hp. The possibilities of rubber springs are discussed.
1938-01-01
Technical Paper
380147
L. W. Child
ALL factors necessary for year-around air conditioning of cars and buses are covered generally in this paper. How the desired results were obtained in both winter and summer air conditioning is explained with the aid of a chart of air requirements. Types of equipment are discussed, especially the refrigerating system, giving powers, capacities, and safety factors.
1938-01-01
Technical Paper
380096
F. J. Linsenmeyer
1938-01-01
Technical Paper
380086
L. J. Verbarg
Viewing 8581 to 8610 of 8625