One thing that has been puzzling me is why there was a such a substantial over run at such a high speed, like many others I would think that there had to have been some other conspiring factor to cause such a large over run.
Out of curiosity I used the performance manuals for the G3 and G5 (No longer have any G4 manuals lying around) and came up with some rough numbers for stopping distances at approach speeds of 165 knots, these were typically in the region of 7,800 ft, at 500ft field elevation, unfactored, no wind. Subtract 1,000 ft from this to account for the 50ft threshold crossing height distance and an additional 1,400 ft credit for both thrust reversers operating and you get an approximate stopping distance on hard surface of 5,400ft.
Add to this the distance required to accelerate to 165 knots which I estimate to be at least 4,400ft (BFL's for flaps 10, field elevation 500ft, GTOW 60,000lb, come out to around this number)
Add these two numbers together, 4,400ft to go and 5,400 to stop and you get 9,800ft total.
Total distance from the start of the runway to the gully is approximately 8,900ft
(7,011 ft + 1,000ft overrun + ~890 ft to the gully)
Not saying that there weren't any other failures during the abort, just that a considerable overrun was a certainty with an abort started that far past V1 even with everything working perfectly.
Last edited by Astra driver; 11th Jun 2014 at 04:00.