Sidebar:
I was fortunate to know Ed Heinemann pretty well. Among others of course he designed the SBD, A-20, A-26, A-1, A-3, A-4 and some record-setting X jobs.
He was really proud of the A-3, which his Douglas crew brought in at about 70k lbs v. the USN spec for 100k
BUT
He was proudest of his
Blimp.
Say whaaaat?
Yup, turned out that Douglas beat Goodyear for the last LTA contract, which then was canceled.