The "Potez 33" Military Airplane (French) (open access)

The "Potez 33" Military Airplane (French)

Circular describing the Potez 33, which is a military airplane that can be used for other purposes such as training pilots and as a messenger airplane due to its maneuverability and low landing speeds. A description of the controls, components, potential uses, characteristics, performance, drawings, and photographs are provided.
Date: June 1929
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Report of the Twenty-Second National Conference on Weights and Measures, 1929 (open access)

Report of the Twenty-Second National Conference on Weights and Measures, 1929

Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: June 1929
Creator: United States. National Bureau of Standards.
Object Type: Report
System: The UNT Digital Library
Crank Case Scavenging of Two-Stroke-Cycle Engines (open access)

Crank Case Scavenging of Two-Stroke-Cycle Engines

This report presents the results of tests on two-stroke-cycle Diesel engines to determine the efficiency of the crank case scavenging pump. It was determined that efficiencies were between 95 and 100%.
Date: June 1929
Creator: List, Hans
Object Type: Report
System: The UNT Digital Library
Force Measurements on Airplanes (open access)

Force Measurements on Airplanes

The most essential phenomena of aircraft should be classified according to their origin and then measured. Information can thus be obtained in a quicker, cheaper, and more reliable way than otherwise would be possible.
Date: June 1929
Creator: Seewald, F.
Object Type: Report
System: The UNT Digital Library
Strength of Tubing Under Combined Axial and Transverse Loading (open access)

Strength of Tubing Under Combined Axial and Transverse Loading

Note presenting a systematic study of the strength of duralumin and chrome-molybdenum steel round tubing in combined transverse and axial loading. A description of the formulas that are the groundwork for the study as well as the results of the tests are provided.
Date: June 1929
Creator: Tuckerman, L. B.; Petrenko, S. N. & Johnson, C. D.
Object Type: Report
System: The UNT Digital Library
Pressure Distribution on a Slotted R.A.F. 31 Airfoil in the Variable Density Wind Tunnel (open access)

Pressure Distribution on a Slotted R.A.F. 31 Airfoil in the Variable Density Wind Tunnel

Measurements were made in the variable density wind tunnel to determine the pressure distribution over one section of a R.A.F. 31 airfoil with a leading edge slot fully open. To provide data for the study of scale effect on this type of airfoil, the tests were conducted with air densities of approximately one and twenty atmospheres.
Date: June 1929
Creator: Jacobs, Eastman N.
Object Type: Report
System: The UNT Digital Library
Correcting Engine Tests for Humidity (open access)

Correcting Engine Tests for Humidity

Note presenting tests using a multicylinder engine to determine the effect that atmospheric humidity has on some phases of engine performance. Three test series with different types of fuel were carried out. The results indicate that failure to allow for the effect of differences in atmospheric humidity may introduce errors as great as would be occasioned by failure to allow for changes in barometric pressure.
Date: June 1929
Creator: Brooks, Donald B.
Object Type: Report
System: The UNT Digital Library
Trembles. (open access)

Trembles.

Describes the trembles, a milk sickness which afflicts cows; includes information regarding causes, transmission to uninfected animals, remedies, and prevention.
Date: June 1929
Creator: Marsh, C. Dwight (Charles Dwight)
Object Type: Book
System: The UNT Digital Library
Termites in Buildings. (open access)

Termites in Buildings.

Describes the characteristics of termites, the damage they cause to buildings, and methods of control.
Date: June 1929
Creator: Snyder, Thomas Elliott, b. 1885
Object Type: Book
System: The UNT Digital Library
Varieties of hard red winter wheat. (open access)

Varieties of hard red winter wheat.

Describes different types of hard red winter wheat and where it grows in the United States.
Date: June 1929
Creator: Clark, J. Allen (Jacob Allen), b. 1888 & Quisenberry, Karl S.
Object Type: Book
System: The UNT Digital Library
Investigation of the Effect of the Fuselage on the Wing of a Low-Wing Monoplane (open access)

Investigation of the Effect of the Fuselage on the Wing of a Low-Wing Monoplane

Memorandum presenting the mutual action of wing and fuselage, which greatly affects the construction of airplanes. A description of systematic wind-tunnel tests that were made to answer that question is provided. Other tests deal with the transition from fuselage to wing root, which, if inadequate on low-wing monoplanes, may become dangerous by causing the air flow to separate at the wing root.
Date: June 1929
Creator: Muttray, H.
Object Type: Report
System: The UNT Digital Library
Investigation of Atomization in Carburetors (open access)

Investigation of Atomization in Carburetors

This report presents methods by which it is possible to determine, in a simple manner, both pressure atomization and carburetor atomization.
Date: June 1929
Creator: Sauter, J.
Object Type: Report
System: The UNT Digital Library