Manufacturing Industry
Testing to avert disasters: external Space Shuttle tank foam; Nondestructive evaluation of the Space Shuttle external tank foam was carried out at the NASA Marshall Space Flight Center.
Advanced Materials & Processes, May, 2005 by Thom, Robert L.
During launch of Space Shuttle Columbia, mission STS-107, a large piece of spray-on foam insulation (SOFI) separated from the external tank left bipod ramp area, and impacted the shuttle orbiter left wing leading edge. "Analysis showed that this large piece of foam struck Columbia on the underside of the left wing after launch.
Later, analysis showed that the larger piece struck Columbia on the underside of the left wing, around reinforced carbon-carbon (RCC) panels 5 through 9, at 81.9 seconds after launch. Further photographic analysis revealed that the large foam piece was approximately 21 to 27 inches long and 12 to 18 inches wide and was moving at a relative velocity to the Shuttle stack of 625 to 840 feet per second (416 to 573 miles per hour) at the time of...
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