THE INFLUENCE OF UNCONVENTIONAL STRUCTURES AND MATERIALS ON BOOSTER REUSABILITY,
DOUGLAS AIRCRAFT CO INC SANTA MONICA CALIF
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This paper presents a conceptual definition for the structure of a hypothetical re-useable booster, which is optimized for minimum gross weight. The paper defines the environment on the structural configuration from reflected noise prior to lift-off, fromflight loads during ascent, from meteorite considerations while in orbit, from re-entry heating during atmospheric penetration, and from impact loads upon touch-down after recovery. A unique method for cooling the re-entry structure is described, as is a passive method of withstanding water-impact t loads resulting from ocean recovery. An integrated approach to multiple-purpose structures is discussed. An economic analysis is presented to substantiate the conclusion that flight structures comprise the major portion of launch vehicle operational costs.