Why are props at the back of a ship but at the front on a plane?

[model 10]

[QUOTE=ZULU40;2466749]
Lovely explanation. I met Aircoupe's designer RT Jones and his friend Martin Holmann decades ago. Still have his book 'Modern Subsonic Aerodynamics'


The Aircoupe is a funny little plane to fly. It has no rudder pedals, you fly with your feet flat on the floor, the rudders and nosewheel are connected to the ailerons. It drives like a car. It is pretty safe but not very exciting.