^Lot 571 Discovery Flown Leading Edge Wing Spar Insulator

Flown Leading Edge Wing Hi-Temp Spar Insulator which was located directly inside of the Reinforced Carbon-Carbon (RCC) panel on the space shuttle orbiter wing. Used on board the shuttle Discovery, this particular part was flown on four missions; STS 60, 63, 64, and 70, before removal in Palmdale, California during modifications. Panel measures approximately 17 x 11 x 6 with appropriate numbering. Accompanied by photocopies of extensive documentation of the positioning of the panel as well as documentation of its replacement. In fine condition, with expected wear. Reinforced carbon-carbon is used on the wing leading edges; the nose cap, including an area immediately aft of the nose cap on the lower surface (chine panel); and the immediate area around the forward orbiter/external tank structural attachment. RCC protects areas where temperatures exceed 2,300 F during entry. The RCC panels are mechanically attached to the wing with a series of floating joints to reduce loading on the panels caused by wing deflections.