When it is done, the craft will be able to hover on anything flat (asphalt, sand, water, etc), but it will be mostly driven on the San Francisco Bay. The hovercraft is registered with the DMV in California as a boat (it is not street legal). The top speed should be around 45 mph, which is pretty impressive for a vehicle with no breakes (it’s not touching the ground, remember!). If you have never seen a hovercraft, the basic concept is that a fan pushes air underneath the middle of the craft and a “skirt” (basically a flexible inner-tube around the perimeter of the craft) traps that high-pressure air under the craft, which lifts it off the ground. Some air is escaping under the skirt at all points at all times, so in theory, even the skirt isn’t actually touching the ground/water (in reality the skirt drags on the ground occasionally). A second fan pushes air behind the craft, driving it forward. Rudders behind this thrust fan turn the craft. … Just in case you were wondering, the craft will not be able to reach 88 mph and so I won’t be installing a flux capacitor.
THIS IS AWESOME – My thanks to slashfilm for the heads up