Originally Posted by
SR22
Even assuming eighty knots, NO brakes, no thrust reversers, and no spoilers; with over a mile of runway remaining, it seems like an aborted take-off should have simply rolled to a less catastrophic conclusion, especially considering the extra drag of the blown tire.
Any thoughts from Lear drivers? Thrust levers sticking (computer forcing them) open in situations like this? What is V1/Vr/V2 on the 60? What is the take-off roll? Perhaps the crew was following the training (over 80, go) some are touting on here; but, with the blown tire, were not able to get up enough speed to fly?
First, the blown tire would not have caused any extra drag. I've blown a lear tire and the can state from experience that the remaining tire will carry the load. I've not studied this particular accident in detail, but I seem to remember that the aircraft went straight off the runway end. Therefore they most likely had directional control which basically rules out the scenario where both tires blew. IOW, a single blown tire would have been a very minor issue if the takeoff had been continued. Again, I'm trying to NOT comment on this particular accident. As far as I know, we do not yet know why they attempted an abort. I am willing to give the crew the benefit of the doubt and conclude that their decision was good. That only emphasises the danger of high speed aborts. Many things could have caused the crew to make a proper abort decision. The blown tire could have somehow ended up fodding out the engine is one possibility that could have put this ill fated crew in an almost no win situation. RIP.
Second, a Lear, any Lear that I know of, will accelerate well with all four tires locked. That's why they train to NEVER set the parking brake when holding in position (line up and wait). It is possible to push up the power and blow the tires before you realize it.