Just a thought...................... ............
IF you use auto take off, in a bomber it automatically deploys two notches of flaps on take off, in a bomber, there is a possability that you arent exceeding the max flaps down speed, and they are staying down........you will still climb, but at a greatly reduced rate.
Try hitting the 'W' key twice after take off, see if that makes any differance.
Many, many, many times I've had someone ask me why their B17/Lanc/Ju88 wont stay in formation with mine....usually its because of the 2 notches of flaps deployed at takeoff that they have either not known about at all, or forgotten about.
Blue.