Campaign Mission 25

[Fergi19]

Using a lot of game cheats, I made it to mission 25.  For some reason though I keep losing power on the take-off roll.  I'm able to get up to a little over 100 kts and lift off, wheels up but then power starts to bleed off and the airplane settles down.  I notice what looks like wing tip vortices and possibly water vapor coming from the exhaust under the airplane so I'm wondering if there is some sort of engine damage being modeled?  I've double checked my start-up sequence, air intakes are set forward, coolant selectors are auto. I even tried doing the take off with less than full power keeping the manifold pressure in the green. 

 

Ideas?

[Delareon]

Have you checked the selected Fuel Tank and how much fuel is left there?
Sounds a little bit like you have selected an empty tank.