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granlistillo · December 29th, 2008, 12:15

Hacker,

The part 121 definition for v1 would be your Critical Engine Failure Speed.

IE the max speed at which it can reach and be stopped in the ASD.

and

the min speed following a CE failure where it can continue the takeoff with the obstacle clearance requirements being met.

Both criteria have to be met. It may or may not resemble a balanced field condition, and it will be above vmcg. So below it, you abort and above it you go.

December 29th, 2008, 12:15	#53
granlistillo Senior Member Join Date: Nov 2007 Location: Al Andalus Posts: 1,309	Re: Noises heard at 41 seconds Hacker, The part 121 definition for v1 would be your Critical Engine Failure Speed. IE the max speed at which it can reach and be stopped in the ASD. and the min speed following a CE failure where it can continue the takeoff with the obstacle clearance requirements being met. Both criteria have to be met. It may or may not resemble a balanced field condition, and it will be above vmcg. So below it, you abort and above it you go.