Re: Derate and V-speeds
Just did it.
25 % Derate
1 engine accel stop distance = 11109
V1 = 155.6
V2 = 159.4
30 % Derate
1 engine accel stop distance = 11910
V1 = 157.1
V2 = 159.5
So the V1 is increasing, the runway length required is increasing, the V2 is decreasing or reaches limit.
Just as a side issue, in the FAA world,the 25 % maximum derate value applies to the Assumed Temperature Derates and not a fixed Derate. Do the JAA apply the restriction to both?
Mutt