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No, but it happened to a colleague of mine, and I was on the flight-line that day (it was in the USAF). The B-52's brakes on one "truck" were wired backwards, and thus dragging the aircraft. They were just under "committ" speed, also known as S-1, and rapidly running out of runway. They stood on the brakes, popped the drag chute, trailing molten copper from the stuck brakes, and went off the end of the runway. The crew compartment/nose snapped off the fuselage (but did not separate, the engine throttle and control-line wires didn't break). The crew evacuated the aircraft via the overhead escape/ejection hatches, with the engines still running: maitenance and the base Crash truck had to hack into all 4 engine pods to cut the fuel lines off. Minor injuries, physically, and the loss of an aircraft. Two of the students onboard the jet ended up turning in their wings afterwards. . . . and were medically discharged with psychological problems. My buddy wasn't one of the two, but he WAS pretty banged up. . .

Compelling story! Sorry to hear about your buddies injuries. Sounds like the crew did the absolute best they could given the lousy situation they were presented with.

Question, S1? I remember movies where the pilots used the term R1, R2 and R3. I think it denoted meant "rotation". R1 being the earliest, R2 being optimum and R3 the latest part of the runway one could safely take off.

Is "S1" the military version?