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Preliminary Design and Experimental Investigation of the FDL-5A Unmanned High L/D Spacecraft: Part IV - Aerothermodynamics

Report Number: AFFDL TR 68-24 Part 4
Author: Guard, F. L.
Author: Schultz, H. D.
Corporate Author: Lockheed-California Company
Laboratory: Air Force Flight Dynamics Laboratory
Date of Publication: 1968-03
Pages: 408
Contract: AF 33(615)-5241
Project: 1366
Task: 136616
AD Number: AD0390205

Design and experimental analyses of unmanned entry research vehicles having high hypersonic L/D and high volume are described. Analytic parametric data are presented for two lifting body classes designated HLD-35 and FDL-5. Experimental aerodynamic and heat transfer data obtained from Arnold Engineering Development Wind Tunnels A, B, C, and F are compared with analytic data for the FDL-5 vehicle. Structure and subsystems are selected for performing unmanned hypersonic research with the vehicle.

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