Pilot's Test

I would like to thank my grandfather who used to tell me about this simple but surprisingly effective test that was once used to evaluate candidates applying to flight school, how he trained relentlessly, how close he came to passing, how crushed he was when he failed and ended up training as a tank crewman instead - but none of this actually happened, I just adapted a decades-old web game for mobile.

!!CAUTION!! 
EXTREMELY ADDICTIVE