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Flexible Rolled-Up Solar Array.
HUGHES AIRCRAFT CO EL SEGUNDO CA EL SEGUNDO United States
The main activities on the Flexible-Rolled-Up Solar Array FRUSA during the eighth quarterly reporting period consisted of completion of detail parts and start of assembly of the developmentqualification model orientation mechanism and solar array. The panel substrate and bus assembly is nearing completion and solar cell bonding will begin the second week in July. Assembly of some of the orientation mechanism subassemblies has been completed, and the assembly should be complete by 1 August. Fabrication of the control electronics unit, solar cell electronics unit, and instrumentation conditioning unit has been completed. However, the late delivery of some high reliability components has necessitated the utilization of a few functionally equivalent commercial components so that acceptance testing of the units could be started. The commercial components will be replaced with the high reliability parts when they become available and, in any event, prior to environmental testing. Schematics and detail and assembly drawings of the batterycharge controller and power conditioning units have been completed. Schematics of the load bank have been completed. Detail design is nearing completion. Release of drawings of all three units is scheduled for mid-July. Procurement of high reliability parts for the units has been initiated.
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