jaybee
Cleared for Takeoff
I was getting a little impatient waiting for my preheater so I decided to just throw some 100ll into the cowling followed by a match. I heard some crackling noises. My CFI thinks I may have damaged something but we flew it for 3 hours without any problems. I think he doesn't know what he's talking about because we take of on a treadmill thereby reducing the amount of air coming in the cowling eliminating any thermal expansion cracks. I know this because I walked around the block twice. Does anyone happen to have an engineering article that completely agrees with me ?