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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1942
 Month: March
 Collection: Technical Report Archive and Image Library
The aerodynamic tests of three Edo floats for the SB2U-3, 0S2U-2, and XSB2C-2 seaplanes - NACA models 106-K, 107-K, and 125-AH

The aerodynamic tests of three Edo floats for the SB2U-3, 0S2U-2, and XSB2C-2 seaplanes - NACA models 106-K, 107-K, and 125-AH

Date: March 1, 1942
Creator: Liddell, Robert B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analytical theory of the Campini propulsion system

Analytical theory of the Campini propulsion system

Date: March 1, 1942
Creator: Campini, S
Description: Following the description of the new propulsion system and the definition of the propulsive efficiency, this efficiency is calculated under various conditions of flight with allowance for all internal losses. The efficiency and consumption curves are plotted, their practical values discussed and the behavior of the system analyzed at various altitudes and speeds. The immediate possibilities of the new system in flight at high and very high altitudes in relation to the theoretical and experimental results are discussed in detail.
Contributing Partner: UNT Libraries Government Documents Department
Characteristics of plain and balanced elevators on a typical pursuit fuselage at attitudes simulating normal-flight and spin conditions

Characteristics of plain and balanced elevators on a typical pursuit fuselage at attitudes simulating normal-flight and spin conditions

Date: March 1, 1942
Creator: Hoggard, H Page, Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Correlation of data on the statistical theory of turbulence

Correlation of data on the statistical theory of turbulence

Date: March 1, 1942
Creator: Wieghardt, K
Description: The statistical theory of turbulence affords an excellent medium for representing the kinematic conditions in turbulent flow and also serves as a valuable aid to exact experimental research. But it is still not developed enough for solving dynamic processes. Even in the simplest case of isotropic turbulence the calculation of the correlation curve or of the decrement of turbulence invariably reaches a point where clear-cut assumptions, such as omission of the inertia terms, or, earlier, mixing length assumptions or even merely general dimensional considerations, must be made.
Contributing Partner: UNT Libraries Government Documents Department
Electrical equipment for the experimental study of the dynamics of fluids

Electrical equipment for the experimental study of the dynamics of fluids

Date: March 1, 1942
Creator: Ferrari, Carlo
Description: This report contains the description of electric anemometers and their application to the study of turbulent fluid flows, of electric tanks for the realization of the analogies between electrology and aerodynamics and their application to the study of varied technical problems, and lastly of the electric condenser type dynamometer and its application to the prediction of the aerodynamic forces on wing and airplane models in wind-tunnel tests and in controlled and spontaneous rotations.
Contributing Partner: UNT Libraries Government Documents Department
An Experimental Investigation of Flow Across Tube Banks

An Experimental Investigation of Flow Across Tube Banks

Date: March 1, 1942
Creator: Brevoort, M.J. & Tifford, A.N.
Description: Flow across tube banks was investigated by surveys of total dynamic and static pressure by visualization of the flow through the use of titanium tetrachloride smoke, by thermocouple surveys of heated tubes, and by hot-wire surveys of both heated and unheated tubes. It was found that turbulence increased as the depth of the bank increased and that the broad wake behind each tube affected flow over the succeeding tubes.
Contributing Partner: UNT Libraries Government Documents Department
Full-scale wind-tunnel and flight tests of a Fairchild XR2K-1 airplane with a zap flap and upper-surface aileron-wing installation

Full-scale wind-tunnel and flight tests of a Fairchild XR2K-1 airplane with a zap flap and upper-surface aileron-wing installation

Date: March 1, 1942
Creator: O'Sullivan, William J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Investigation of the forces acting on gliders in automobile-pulley-winch and airplane towed flight

Investigation of the forces acting on gliders in automobile-pulley-winch and airplane towed flight

Date: March 1, 1942
Creator: Klemperer, W B
Description: The magnitude, the direction, and the fluctuation of towing forces exerted upon gliders by towing them aloft behind an automobile, by means of a winch, and by airplane were measured under a variety of conditions covering a range from gentle to severe types of operation. For these tests the towing forces did not exceed 92 percent of the gross weight of the glider. The results indicate that in pulley and winch towing the towing forces are of about the same magnitude as in automobile towing. Speed increases in the accelerated phases of the towing jerks encountered in airplane towing can readily become critical as speeds in excess of placard speeds can be attained. Passage through the slipstream of the towing airplane can be equivalent to a severe gust that, at high speed, may impose high wing loads and require large control moments.
Contributing Partner: UNT Libraries Government Documents Department
Manganese Investigations - Metallurgical Division: 8. Pyrometallurgical Studies of Manganese Ore

Manganese Investigations - Metallurgical Division: 8. Pyrometallurgical Studies of Manganese Ore

Date: March 1942
Creator: Miller, Virgil
Description: Report issued by the U.S. Bureau of Mines on investigations conducted on manganese ore used for smelting. Experimental methods and results are presented. This report includes tables, and a photograph.
Contributing Partner: UNT Libraries Government Documents Department
A method for the design of cooling systems for aircraft power-plant installations

A method for the design of cooling systems for aircraft power-plant installations

Date: March 1, 1942
Creator: Knopf, George S
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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