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  Partner: UNT Libraries Government Documents Department
 Decade: 1950-1959
 Year: 1957
 Month: March
 Collection: Technical Report Archive and Image Library
Altitude-Wind-Tunnel Investigation of the 19B-2, 19B-8, and 19XB-1 Jet Propulsion Engines, 3, Performance and Windmilling Drag Characteristics

Altitude-Wind-Tunnel Investigation of the 19B-2, 19B-8, and 19XB-1 Jet Propulsion Engines, 3, Performance and Windmilling Drag Characteristics

Date: March 13, 1957
Creator: Fleming, WIlliam A.
Description: The performance characteristics of the 19B-8 and 19XB-1 turbojet engines and the windmilling-drag characteristics of the 19B-6 engine were determined in the Cleveland altitude wind tunnel. The investigations were conducted on the 19B-8 engine at simulated altitudes from 5000 to 25,000 feet with various free-stream ram-pressure ratios and on the 19XB--1 engine at simulated altitudes from 5000 to 30,000 feet with approximately static free-stream conditions. Data for these two engines are presented to show the effect of altitude, free-stream ram-pressure ratio, and tail-pipe-nozzle area on engine performance. A 21-percent reduction in tail-pipe-nozzle area of the 19B-8 engine increased the let thrust 43 percent the net thrust 72 percent, and the fuel consumption 64 percent. An increase in free-stream ram-pressure ratio raised the jet thrust and the air flow and lowered the net thrust throughout the entire range of engine speeds for the 19B-8 engine. At similar operating conditions, the corrected jet thrust and corrected air flow were approximately the same for both engines, and the corrected specific fuel consumption based on jet thrust was lower for the 19XB-1 engine than for the 19B-8 engine. The thrust and air-flow data obtained with both engines at various altitudes for a given free-stream ...
Contributing Partner: UNT Libraries Government Documents Department
Analysis of experimental low-speed loss and stall characteristics of two-dimensional compressor blade cascades

Analysis of experimental low-speed loss and stall characteristics of two-dimensional compressor blade cascades

Date: March 19, 1957
Creator: Lieblein, Seymour
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Brief studies of turbojet combustor and fuel-system operation with hydrogen fuel at -400 deg f

Brief studies of turbojet combustor and fuel-system operation with hydrogen fuel at -400 deg f

Date: March 7, 1957
Creator: Christenson, H. H.
Description: Turbojet combustor and fuel system operation with hydrogen fuel at -400 deg F.
Contributing Partner: UNT Libraries Government Documents Department
Comparison of Experimental and Theoretical Zero-Lift Wave-Drag Results for Various Wing-Body-Tail Combinations at Mach Numbers up to 1.9

Comparison of Experimental and Theoretical Zero-Lift Wave-Drag Results for Various Wing-Body-Tail Combinations at Mach Numbers up to 1.9

Date: March 27, 1957
Creator: Petersen, R. B.
Description: Comparisons are made of experimental and theoretical zero-lift wave drag for several nose shapes, wing-body combinations, and models of current airplanes at Mach numbers up to 1.0. The experimental data were obtained from tests in the Ames 6- by6-foot supersonic wind tunnel and at the NACA Wallops Island facility. The theoretical drag was found by use of linear theory utilizing model area distributions. The agreement between theoretical and experimental zero-lift wave-drag coefficients was generally very good, especially for a fuselage or for fuselage-wing combinations that were vertically symmetrical. For other models that had rapid changes in body shape and/or were not vertically symmetrical, the agreement of theory with experiment ranged from fair to poor, depending on the severity of the change in shape.
Contributing Partner: UNT Libraries Government Documents Department
Comparison of NACA 65-series compressor-blade pressure distributions and performance in a rotor and in cascade

Comparison of NACA 65-series compressor-blade pressure distributions and performance in a rotor and in cascade

Date: March 1, 1957
Creator: Westphal, Willard R
Description: An investigation has been conducted to compare the performance of NACA 65-series compressor blades in two-dimensional cascade with that in an axial flow compressor. Blade pressure distributions were obtained by the use of a mercury-seal pressure-transfer device. The comparison indicated that cascade data accurately predicted the turning angle and blade pressure distribution obtained in the compressor at design conditions.
Contributing Partner: UNT Libraries Government Documents Department
A comparison of typical National Gas Turbine Establishment and NACA axial-flow compressor blade sections in cascade at low speed

A comparison of typical National Gas Turbine Establishment and NACA axial-flow compressor blade sections in cascade at low speed

Date: March 1, 1957
Creator: Felix, A Richard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A correlation of low-speed, airfoil-section stalling characteristics with Reynolds number and airfoil geometry

A correlation of low-speed, airfoil-section stalling characteristics with Reynolds number and airfoil geometry

Date: March 1, 1957
Creator: Gault, Donald E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Design and investigation of a transonic axial-flow compressor rotor with an inlet hub-tip radius ratio of essentially zero

Design and investigation of a transonic axial-flow compressor rotor with an inlet hub-tip radius ratio of essentially zero

Date: March 11, 1957
Creator: Westphal, Willard R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Engineering, Construction and Cost of the Argonaut Reactor

Engineering, Construction and Cost of the Argonaut Reactor

Date: March 1957
Creator: Armstrong, R. H.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The erosion of meteors and high-speed vehicles in the upper atmosphere

The erosion of meteors and high-speed vehicles in the upper atmosphere

Date: March 1, 1957
Creator: Hansen, C Frederick
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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