You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Decade: 1910-1919
 Collection: National Advisory Committee for Aeronautics Collection
Effect of Compression Ratio, Pressure, Temperature, and Humidity on Power

Effect of Compression Ratio, Pressure, Temperature, and Humidity on Power

Date: January 1, 1919
Creator: Dickinson, H C
Description: Among other factors which affect the horsepower of an airplane engine are the atmospheric pressure, and consequently the altitude at which the engine is working, and the compression ratio, or cylinder volume divided by clearance volume. The tests upon which this report is based were selected from a large number of runs made during the intercomparison of various gasolines to determine the variation of horsepower with altitude at three different compression ratios. The test results and conclusions are presented in this report.
Contributing Partner: UNT Libraries Government Documents Department
Experimental research on air propellers

Experimental research on air propellers

Date: January 1, 1918
Creator: Durand, William F
Description: The purposes of the experimental investigation on the performance of air propellers described in this report are as follows: (1) the development of a series of design factors and coefficients drawn from model forms distributed with some regularity over the field of air-propeller design and intended to furnish a basis of check with similar work done in other aerodynamic laboratories, and as a point of departure for the further study of special or individual types and forms; (2) the establishment of a series of experimental values derived from models and intended for later use as a basis for comparison with similar results drawn from certain selected full-sized forms and tested in free flight.
Contributing Partner: UNT Libraries Government Documents Department
Experimental researches on the resistance of air

Experimental researches on the resistance of air

Date: January 1, 1917
Creator: Marchis, L
Description: Report presents the experimental results of the resistance of air of a body moving in relative movement to the air with which it is surrounded.
Contributing Partner: UNT Libraries Government Documents Department
Fabrics for aeronautic construction

Fabrics for aeronautic construction

Date: January 1, 1918
Creator: Walen, E D
Description: The Bureau of Standards undertook the investigation of airplane fabrics with the view of finding suitable substitutes for the linen fabrics, and it was decided that the fibers to be considered were cotton, ramie, silk, and hemp. Of these, the cotton fiber was the logical one to be given primary consideration. Report presents the suitability, tensibility and stretching properties of cotton fabric obtained by laboratory tests.
Contributing Partner: UNT Libraries Government Documents Department
General Analysis of Airplane Radiator Problems

General Analysis of Airplane Radiator Problems

Date: January 1, 1919
Creator: Dickinson, H C
Description: Report embodies the results of a very extensive research, both theoretical and experimental, into the problems involved in the dissipation of heat by means of the airplane radiator.
Contributing Partner: UNT Libraries Government Documents Department
General Discussion of Test Methods for Radiators

General Discussion of Test Methods for Radiators

Date: January 1, 1919
Creator: Dickinson, H C
Description: Report describes the methods and apparatus developed and used in the extensive experimental research into the problems involved in the dissipation of heat by means of the airplane radiator.
Contributing Partner: UNT Libraries Government Documents Department
General specifications covering requirements of aeronautic instruments

General specifications covering requirements of aeronautic instruments

Date: January 1, 1917
Creator: unknown
Description: Report includes specifications for the use and production of instruments used in the navigation and operation of aircraft. Specifications are included for the following instruments: barometer or altimeter, compass, air speed meter, inclinometer, drift meter, tachometer, oil gauge, oil pressure gauge, gasoline gauge, gasoline flow indicator, distance indicator, barograph, angle of attack indicator, radiator temperature indicator, gasoline feed system pressure indicator, sextant, airplane director.
Contributing Partner: UNT Libraries Government Documents Department
Investigation of Pitot tubes

Investigation of Pitot tubes

Date: January 1, 1917
Creator: Herschel, W H
Description: Report describes the principles of operation and characteristics of some of the instruments which have been devised or used to measure both low and high speeds of aeroplanes. Since the pitot tube is the instrument which has been most commonly used in the United States and Great Britain as a speedometer for aeroplanes, it is treated first and somewhat more fully than the others.
Contributing Partner: UNT Libraries Government Documents Department
An investigation of the elements which contribute to statical and dynamical stability, and of the effects of variation in those elements

An investigation of the elements which contribute to statical and dynamical stability, and of the effects of variation in those elements

Date: January 1, 1918
Creator: Klemin, Alexander
Description: Part 1 gives details of models tested and methods of testing of the Eiffel 36 wing alone and the JN2 aircraft. Characteristics and performance curves for standard JN are included. Part 2 presents a statistical analysis of the following: lift and drag contributed by body and chassis tested without wings; lift and drag contributed by tail, tested without wings; the effect on lift and drift of interference between the wings of a biplane combination; lift and drag contributed by the addition of body, chassis, and tail to a biplane combination; total parasite resistance; effect of varying size of tail, keeping angle of setting constant; effect of varying length of body and size of tail at the same time, keeping constant moment of tail surface about the center of gravity; forces on the tail and the effects of downwash; effect of size and setting of tail on statical longitudinal stability effects of length of body on stability; the effects of the various elements of an airplane on longitudinal stability and the placing of the force vectors. Part 3 presents the fundamental principals of dynamical stability; computations of resistance derivatives; solution of the stability equation; dynamical stability of the Curtiss JN2; tabulation ...
Contributing Partner: UNT Libraries Government Documents Department
Investigations of Balloon and Aeroplane Fabrics

Investigations of Balloon and Aeroplane Fabrics

Date: January 1, 1917
Creator: Gibbons, Willis A
Description: Report presents the experimental results of fabrics used for balloons and aeroplanes. Tensile properties, surface roughness, skin friction, flammability, permeability, and water absorption were tested for different combinations of materials.
Contributing Partner: UNT Libraries Government Documents Department