Large Retractable Solar Cell Array.

摘要

The main activity on the Large Retractable Solar Cell Array (LRSCA) program during the second quarterly reporting period consisted of design and analyses of major subsystem components, test and development planning, design and fabrication of a solar cell array test bed, preparation of a preliminary reliability apportionment, release of a preliminary instrumentation subsystem design specification, negotiation of the extendible boom actuator unit subcontract with SPAR Aerospace Products of Canada, Ltd., and preparation of the Preliminary System Design Specification. A major program redirection occurred during this reporting period - the use of GFE (8-mil thick, 2 x 2 cm) cells rather than the standard (12 to 14 mil thick, 2 x 2 cm) cells previously planned. The same directive authorized a study to determine momentum-storage wheel requirements to compensate for the disturbing torques resulting from orientation mechanism maneuvers. (Author)