T/O 2nd segment vs. APP clb
That got me thinking when reading on fuel dumping. Current rules require fuel jettison system to be installed on an a/c if it is not able to meet app/ldg climb requirements during turn back 15 minutes after t/o.
Now, since the a/c is fulfilling all the takeoff performance requirements at MTOW (including 2nd segment), under what circumstances the app/ldg clb criteria would be more penalizing?
2nd segment is 2.4% at MTOW
App clb is 2.1% at MTOW-15mins of fuel
I know there are differences between those two:
2nd segment is at TOGA, possibly optimum flap config and optimized V2
App Clb is at thrust level 8s after accept from idle, g/a flap setting and speed close to Vref
Would that account for a major difference?
Last edited by Sidestick_n_Rudder; 24th December 2016 at 07:39.