Speed is your friend for War Birds. You need to adopt the fly it to the runway theory. My War Birds clear the threshold at 1/4 power at 10 to 15 feet altitude. When I am over the runway the power comes down and all I do is keep the plane flying in a straight line. When I have my fun planes out at the field, I practice flying to the Runway by doing high speed touch and goes with the wheels actually being on the runway. Over the years the P-40 has a rap of being the worst Gold Edition kit for stalls over any of the rest of them. They all will stall if they get to slow, so as I said, speed is your friend. Good Luck, Dave