During this time Zimmerman, already well known for his unusual designs explored notions of flight control whereby a pilot could control a machine of flight by simply shifting their weight over the centre of gravity. If a person standing on the ground leans forward, their weight is supported on the balls of their feet. This results in a moment about the ankles resisting the tendency to fall forward. The A.C.V was designed to exploit a pilot's instinct to seek their own direction of travel. Conventional methods of horizontal propulsion were eliminated.
Navigational control is achieved merely by leaning in the direction one wishes to travel.
So long as the combined centre of gravity is located high and so long as the pilot instinctively remains naturally in balance the A.C.V. will be controllable. Smooth and flat is required. August Spent most of day looking around for alternative engines. Found small but very flat and smooth concrete surface whereby the A.C.V. successfully demonstrates the control theory we aimed to achieve though the realisation that more power could truly make the air cushioned vehicle faster and more controllable. Roaming digital camera for various camera angles.