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open access

High-Speed Wind-Tunnel Tests of a Twin-Fuselage Pursuit Airplane

Description: Report discussing the aerodynamic characteristics of a twin-fuselage pursuit airplane model, especially at high speeds. Information about the force data and critical Mach numbers for parts of the model is provided. Suggestions for increasing the Mach number of divergence by making modifications to the wing-fuselage fillets and external shape of the radiator are also included.
Date: April 24, 1946
Creator: Anderson, Joseph L. & Tkac, Victor B.
open access

Investigation of Operating Characteristics of an Engine Equipped with Modifications to Eliminate Fuel-Evaporation Icing

Description: From Summary: "Two modified fuel-injection systems, a drilled-inducer type and a spinner type, that prevent serious fuel-evaporation icing were installed on a V-type, liquid-cooled aircraft engine and a preliminary investigation was conducted to determine the effect on engine operating characteristics. The spinner system was also ground - and flight tested on a twin-engine fighter airplane. Flight measurements of cylinder-head temperature over a range of fuel-air ratios and engine power conditi… more
Date: December 24, 1946
Creator: Mulholland, Donald R. & Zlotowski, Edward D.
open access

A Thermal Type Flow Meter for Low Flow Rates of Anhydrous Hydrofluoric Acid

Description: Report discussing a thermal type flow meter which was adapted for metering anydrous hydrofluoric acid at low flow rates. Corrosive gases, which are not appropriate for handling in standard type rotameters or orifice meters, are also suitable for this thermal type flow meter.
Date: June 24, 1946
Creator: Johnsson, Karl Otto; Peed, W. F. & Clewett, G. H.
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