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Terminology Question  
User currently offlineMCOtoATL From United States of America, joined Sep 1999, 474 posts, RR: 4
Posted (14 years 1 month 2 weeks 5 hours ago) and read 1182 times:

In aviation, there is a term that refers to the "point of no return" on a takeoff. In other words, given speed and runway length, there is a point at which it is too late to abort a takeoff. What is this called? Thanks for your help.

4 replies: All unread, jump to last
 
User currently offlineN312RC From United States of America, joined Aug 2000, 2682 posts, RR: 16
Reply 1, posted (14 years 1 month 2 weeks 5 hours ago) and read 1161 times:

Anytime after V1. Or the "decision speed" This depends on the aircraft.


Fly Delta's Big Jets!
User currently offlineGreeneyes53787 From United States of America, joined Aug 2000, 844 posts, RR: 0
Reply 2, posted (14 years 1 month 2 weeks 4 hours ago) and read 1152 times:

If the runway is long enough, like at Edwards, almost any t.o. is abortable.

GE


User currently offlineAJ From Australia, joined Nov 1999, 2395 posts, RR: 24
Reply 3, posted (14 years 1 month 1 week 5 days 4 hours ago) and read 1126 times:

N312RC has it. For transport certified aircraft V1 is the speed on the runway that allows for the pilots to react to a situation and bring the aircraft to a halt on the remaining runway. The speed is greater than the minimum control speed on the ground to allow for critical engine failure etc.
Two accidents regarding V1 are worth a mention. A good example of why not to abort a takeoff beyond V1 was demonstrated by a DC-10-30 at Nagoya a few years back. The other is the Concorde at CDG earlier this year, by sticking to the 'continue' restriction of an airspeed above V1 the aircraft became airborne with a burning wing.
The DC-10 would have completed a circuit and landed, the Concorde would not have stopped on the runway, but MAY have been survivable. The Concorde Captain did EXACTLY as he was trained, however.
Hope this helps.  


User currently offlineAC_A340 From Canada, joined Sep 1999, 2251 posts, RR: 1
Reply 4, posted (14 years 1 month 1 week 5 days 1 hour ago) and read 1114 times:

I believe V1 is the speed at which the aircraft can be stopped completely on the remaining runway without the use of reverse thrust. It all depends on TO weight, runway condition, length, air pressure, humidity etc.

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