Derfred:
a) There is no on-ground thrust limitation in AFM.
b) There is no on-ground thrust max allowable value in FCOM.
c) Hard to comment on any company in-house restrictions (we aint' got any)
How much would you take as an acceptable max thrust on apron in standard ops? My personal value - reasons unknown - is 40% N1. As well it seems that's exactly where the FF of one engine becomes roughly equal to the idle burn with both ENG running.
As a matter of fact, jet blast is the same or let's say it stays N2 dependent irrespective of slope, AUM, taxi phase, or even the number of engines. What I mean to say is that whenever I need more than 45% N1, the planning was not done properly.
Last edited by FlightDetent; 27th Dec 2017 at 23:29.