quick question -You said that if the main engines light up, it's considered a flight, even if they're shut down as in STS-41D, and require changing out..So after the FRR on 6/2/84, did they change out the main engines
Also, unless I'm not thinking straight, Discovery launched 6 flights within 1 calendar year, right? That's gotta be a record?STS-41D, 51A, 51C, 51D, 51G, 51I