thank Don B.
what do you think about Ramtec unit and os 91 engine ,it is a good unit?
I have Jett Tech conversion kit for tubine, bypass and exhaust tube , but no have turbine yet , the firts time i tried to fly the mig-15 at (Valencia city 300ft h.), when I was take off at full throttle and 30 grade
slope, the jet take off fine but sudenly raised the nose and lost speed ,I didnt have time to retract wheels because all was rapid .I fly an utraviper and dont have explanation...