Landing-Impact Characteristics of Load-Alleviating Struts on a Model of a Winged Space Vehicle

Landing-Impact Characteristics of Load-Alleviating Struts on a Model of a Winged Space Vehicle
Author: Ulysse J. Blanchard
Publisher:
Total Pages: 32
Release: 1960
Genre:
ISBN:

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A brief experimental investigation was made of the landing-impact characteristics of a 1/9-scale dynamic model of a winged space vehicle. The landing tests were made by catapulting a free model onto a hard; surface runway and onto water. The model had a conical fuselage and a flat - plate wing with a basic delta planform and 75 deg sweepback of the leading edge. The use of yielding-metal shock absorbers and various landing-gear arrangements was investigated during landing impact. The basic landing gear consisted of a dual rubber-tired nose wheel and twin main skids aft of the center of gravity near the wing tips. landing motion and acceleration data were obtained over a range of landing attitudes, gross weights, and initial sinking speeds. Brief tests were made with an alternate nose-wheel location. An all-skid configuration also was briefly evaluated for hard-surface and water landings. The landing gear employing yielding struts for impact-energy absorption during hard-surface landings resulted in accelerations of approximately 5 1/2 g near the nose gear over a range of landing parameters. Replacing the nose wheel and tire with a skid did not significantly change the accelerations. Landings in smooth water with rigid struts and adequate planing area at the nose skid resulted in a maximum landing acceleration of approximately 4g.

NASA Technical Note

NASA Technical Note
Author:
Publisher:
Total Pages: 410
Release: 1963
Genre:
ISBN:

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Index to NASA Technical Publications

Index to NASA Technical Publications
Author: United States. National Aeronautics and Space Administration
Publisher:
Total Pages:
Release: 1960-07
Genre:
ISBN:

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Applied Mechanics Reviews

Applied Mechanics Reviews
Author:
Publisher:
Total Pages: 1096
Release: 1961
Genre: Mechanics, Applied
ISBN:

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