re: #1146 Ward Cleaver

“Triangular objects” would be lifting bodies, that NASA’s been looking at as far back as the late ’60s and early ’70s. In the opening credits for The Six Million Dollar Man, the producers used NASA file footage of a lifting body crashing on landing (it was actually unmanned) as the “crash” that Steve Austin was in, leading to his becoming a cyborg.

Or the delta-wing XB-70’-ish 1st stage and, IIRC, the second stage might have been a lifting body or might have been a delta as well.