Manufacturing Industry
NASA researching foam options.(National Aeronautics and Space Administration)(Brief Article)
Plastics News, August, 2005 by Lea, Jason
Byline: Jason Lea NASA is considering new options for foam insulation on the space shuttle external fuel tank, according to a contractor involved with the project. Four pieces of polyurethane foam fell off the space shuttle Discovery during liftoff July 26. Discovery was scheduled to return early on Aug.
8. PU foam problems with Discovery follow similar problems in 2003, when space shuttle Columbia exploded after a large chunk of foam fell from its external tank and damaged its left wing. After that, NASA engineers redesigned the external tank so it would use less PU, and added four rod-shaped heaters to help the foam keep the tank warm. New designs for the external tank are not finished, but it would not be surprising if the foam were either better...
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