Sam_Wise:
Armored Car (i.e., tank)
Sam_Wise:
Catapult musings
Sam_Wise:
Study of a Wing
Sam_Wise:
Flying Machine
Sam_Wise:
Pulley Study
Sam_Wise:
Parachute
Sam_Wise:
Ball Bearings
Sam_Wise:
Air Screw
Sam_Wise:
Armored car