my runway is aproximately... 50ft at the most but it is soft spongey grass, the wheels on my yamamoto tend to sink in if i leave it standing too long, the runway is surrounded by thick, knee high grass but i can manage to land my Yamamoto in it ok

LMAO at the catapult idea, ive always wondered if anyone who works in the navy has ever tried to launch an RC from one of those catapults they use for the jets...