Flexible Rolled-Up Solar Array.

The main activities on the Flexible Rolled-Up Solar Array FRUSA program during the tenth quarterly reporting period consisted of completion of assembly of the qualification model and start of assembly of the flight model of the orientation mechanism, solar arrays, drum mechanism, control electronics unit CEU, solar cell electronics unit SCEU, instrumentation conditioning unit ICU, battery charge controller BCC, power conditioning unit PCU, and load bank. The bi-stem actuator units have been refurbished and, together with the arrays, ICU, and SCEU, integrated with the drum to complete the qualification model of the solar array subsystem. The qualification model of the orientation subsystem has been completed and delivered to the system test area. All qualification model elements of the power conditioning and storage subsystem have been fabricated. Flight model fabrication and assembly are on schedule. All flight cell groups of the arrays have been fabricated and tested. Drum mechanism and orientation mechanism detail parts are 70 percent complete. All electronic circuit boards are nearing completion, and all battery cells have been received.