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Investigation of the NACA 1.167-(0)(03)-058 and NACA 1.167-(0)(05)-058 Three-Blade Propellers at Forward Mach Numbers to 0.92 Including Effects of Thrust-Axis Inclination

Description: Report presenting an investigation to determine the aerodynamic characteristics of two three-blade propellers over a range of blade angles and Mach numbers. The thick-blade propeller was more adversely affected by compressibility than the thin-blade propeller, and the maximum efficiency of the thin-blade propeller was higher than the thick-blade propeller.
Date: August 31, 1953
Creator: Demele, Fred A. & Otey, William R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effects of fences on the high-speed longitudinal stability of a swept-wing airplane

Description: Report presenting a series of fence installations tested on a swept-wing jet airplane to determine their effects on the longitudinal instability, or "pitch-up", encountered in high-maneuvering flight. Longitudinal-stability measurements were made at a variety of Mach numbers with nine fence configurations that varied in chordwise extent and spanwise position. Results regarding longitudinal stability, flow phenomena, buffeting and wing dropping, drag, and low-speed stalls are provided.
Date: August 31, 1953
Creator: Bray, Richard S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A note on secondary flow in rotating radial channels

Description: "A general vector differential equation for the vorticity component parallel to a streamline is derived for steady, nonviscous, and incompressible flow in a rotating system. This equation is then simplified by restricting it to rotating radial channels and by making further simplifying assumptions. The simplified equation is used to solve for the secondary vorticity, the vorticity component parallel to the streamline, in three special cases involving different streamtube geometries; the results… more
Date: August 31, 1953
Creator: Kramer, James J. & Stanitz, John D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Correlation by the Hypersonic Similarity Rule of the Pressure Distributions and Wave Drags for Minimum-Drag Nose Shapes at Zero Angle of Attack

Description: Memorandum presenting the use of the hypersonic similarity rule to correlate pressure distributions and wave drags for minimum-drag nose shapes derived by Von Karman and Newton. The computed results have been confirmed by comparison with available experimental data. Wave-drag results for both the Karman and Newtonian shapes are compared with each other and with results for ocnes and circular-arc tangent ogives.
Date: August 31, 1953
Creator: Jorgensen, Leland H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PROCEEDINGS OF THE FIRST INFORMATION MEETING ON HYDROXIDE AND METAL INTERACTION HELD AT OAK RIDGE NATIONAL LABORATORY ON NOVEMBER 13 AND 14, 1951

Description: The corrosion of metals by molten hydroxides is discussed, and results of corrosion tests made at several laboratories are compared. Research results are reviewed on NaOH corrosion of metals, static corrosion by molten caustic at 1500 ts F, dynamic corrosion by molten caustic at 1500 ts F, NaOH-NaH systems, corrosion by fused caustic at high temperatures, purification techniques for NaOH, mechanisms of some corrosion reactions, screening tests on metals, alloys, and ceramic materials, and stati… more
Date: August 31, 1953
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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