My dad headed up the redesign effort on the Lockheed Martin side to remove the foam PAL ramps (where the chunk of foam that broke off and hit the orbiter came from) from the external tank, as part of return-to-flight after the Columbia disaster. At the time he was the last one left at the company from when they had previously investigated removing those ramps from the design. He told me how he went from basically working on this project off in a corner on his own, to suddenly having millions of dollars in funding and flying all over for wind tunnel tests when it became clear to NASA that return-to-flight couldn't happen without removing the ramps.
I don't think his name has ever come up in all the histories of this—some Lockheed policy about not letting their employees be publicly credited in papers—but he's got an array of internal awards from this time around his desk at home (he's now retired). I've always been proud of him for this.
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