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  Partner: UNT Libraries Government Documents Department
 Decade: 1950-1959
 Year: 1957
 Month: February
 Collection: Technical Report Archive and Image Library
Additional experiments with flat-top wing- body combinations at high supersonic speeds

Additional experiments with flat-top wing- body combinations at high supersonic speeds

Date: February 19, 1957
Creator: Gloria, H. R.
Description: Flat top wing body configuration effects on aerodynamic characteristics of supersonic aircraft.
Contributing Partner: UNT Libraries Government Documents Department
Altitude performance of a full-scale turbojet engine using pentaborane fuels

Altitude performance of a full-scale turbojet engine using pentaborane fuels

Date: February 28, 1957
Creator: Useller, James W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analog computer study of several stability augmentation schemes designed to alleviate roll-induced instability

An analog computer study of several stability augmentation schemes designed to alleviate roll-induced instability

Date: February 19, 1957
Creator: Creer, Brent Y
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analytical and experimental investigation of the effects of compressor interstage air bleed on performance characteristics of a 13-stage axial-flow compressor

Analytical and experimental investigation of the effects of compressor interstage air bleed on performance characteristics of a 13-stage axial-flow compressor

Date: February 8, 1957
Creator: Lucas, James G
Description: Air was bled over the fifth-and tenth-stage rotor-blade rows through ports designed to pass 11 and 9 percent of the inlet flow, respectively, at 80 percent speed. Along the rated operating line the maximum speed at which rotating stall was encountered was lowered by either of these bleeds, and the stall patterns below these speeds were altered so that no dangerous resonant rotor-blade bending vibrations were excited. The combination of the two bleeds completely eliminated rotating stall to at least 50 percent speed. The compressor-discharge weight flow was decreased only at intermediate speeds, and the overall pressure ratio was affected only at intermediate speeds, and the overall pressure ratio was affected only by the combination bleed at intermediate speeds. Fifth-stage bleed increased compressor efficiency at low speeds, and tenth-stage bleed decreased efficiency at intermediate speeds.
Contributing Partner: UNT Libraries Government Documents Department
Approximate solution for streamlines about a lifting rotor having uniform loading and operating in hovering or low-speed vertical-ascent flight conditions

Approximate solution for streamlines about a lifting rotor having uniform loading and operating in hovering or low-speed vertical-ascent flight conditions

Date: February 1, 1957
Creator: Castles, Walter, Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Beneficiation of Iron-Copper Ores from Kasaan Peninsula, Prince of Wales Island, Alaska

Beneficiation of Iron-Copper Ores from Kasaan Peninsula, Prince of Wales Island, Alaska

Date: February 1957
Creator: Wells, R. R.
Description: Report issued by the Bureau of Mines over studies conducted on the beneficiation of iron-copper ores. As stated in the summary, "this report summarizes the results of laboratory testing of copper-bearing magnetite ore from the Poorman, Rush and Brown, and Copper Center deposits, Kasaan Peninsula, Prince of Wales Island, southeastern Alaska" (p. 1). This report includes tables, maps, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Characteristics and Analyses of Ninety-Two Colorado Crude Oils

Characteristics and Analyses of Ninety-Two Colorado Crude Oils

Date: February 1957
Creator: Wenger, W. J.
Description: Report issued by the Bureau of Mines over the characteristics and properties of many different crude-oil samples from Colorado. The properties of each sample are presented. This report includes table, maps, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Comparison of combustion reactivity of ethyldecaborane fuels with typical hydrocarbon fuels on basis of spray flammability limits of fuel-rich mists and calculated lean-limit flame temperatures for fuel vapor-air systems

Comparison of combustion reactivity of ethyldecaborane fuels with typical hydrocarbon fuels on basis of spray flammability limits of fuel-rich mists and calculated lean-limit flame temperatures for fuel vapor-air systems

Date: February 27, 1957
Creator: Wise, Paul H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Comparison of the Combustion Performance of Shell UMF, Grade C, MIL-F-5624C, Grade JP-5, Fuels in a Heavy-Duty XRJ47-W-9 Ram-Jet Engine

Comparison of the Combustion Performance of Shell UMF, Grade C, MIL-F-5624C, Grade JP-5, Fuels in a Heavy-Duty XRJ47-W-9 Ram-Jet Engine

Date: February 19, 1957
Creator: Ranscht, W. G.
Description: Comparable combustion performance data for Shell UMF, grade C, and MIL-F-5624C, grade JP-5, fuels were obtained using a heavy-duty version of the XRJ47-W-9 ram-jet engine operated in a 2.75 Mach number free-jet facility. Data were obtained for the two fuels over a range of fuel-air ratios, engine airflows, and engine-inlet temperatures. The test conditions were selected to provide combustor-inlet temperatures. The test conditions were selected to provide combustor-inlet conditions approximately representative of those which would be encountered over a range of altitudes and flight Mach numbers. The variation of combustion efficiency with fuel-air ratio for the two fuels is compared at the several inlet conditions. The pilot-burner ignition and operating limits with both fuels are also included. In general, the combustion efficiency with Shell UMF, grade C, fuel was 1 to 4 points lower than with MIL-F-5624C, grade JP-5, fuel.
Contributing Partner: UNT Libraries Government Documents Department
Design and test of mixed-flow impellers VIII : comparison of experimental results for three impellers with shroud redesigned by rapid approximate method

Design and test of mixed-flow impellers VIII : comparison of experimental results for three impellers with shroud redesigned by rapid approximate method

Date: February 27, 1957
Creator: Osborn, Walter M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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