Well if you are above VMCG then going to full power at V1 should be ok shouldn't it?. Might be better than running off the end if the thing's not performing as well as expected.
I just went through 10 auto takeoff data cards on our 77W's to confirm that:-
Only T/O rating and weight effect the VMCG.
Flap setting and temp have no effect.
Contamination has no effect on VMCG.
The biggest difference between VMCG for TO2 and TO is 13 kts.
On the 77W the highest VMCG is about 124 and the lowest V1 you could ever see would be about 122. ( 200 tonnes, TO2 and wet ice )
So for the 77W you can nearly always increase thrust to max at V1 and know you are above VMCG.
Now this is for the 77W, I don't know how other types go?
Anyone?
Last edited by ACMS; 29th September 2008 at 03:06.