This exactly what I had intended to say in my first post.. Shorter models have lower allowable thrust due to pitch-thrust couple.
A 737-800 with CFM56-7B26 engines at firewall will actually give you 27,3K of thrust. I stand to be corrected, but the BBJ is limited to 26K.
Last edited by Banana Joe; 4th October 2020 at 18:02.