THE SHUTTLE LOSS
Numbers, Words Tell Different Foam Stories
LOS ANGELES Boeing’s January assessment of external tank insulation foam striking Columbia’s wing appears to tell two tales. The verbiage predicts a safe return but the numbers are unsettling. An Aviation Week & Space Technology review of the assessment raises questions about official statements that it was conservative, and their judgment that potential damage to the or-biter’s thermal protection system was not a safety concern.
By MICHAEL A. DORNHEIM7 min