We're trying to build a small hovercraft (around 50x30cm sufrace, we guess). So far we're trying to re-invent the wheel at every step, but this involves many incorrect calculations & huge aprroximations that'd probaby lead many unexpected stuff (welcome to engineering, I hear. Hi there.). Some electronics details, that are probaby not necessary: The energy to the motors will be supplied by a ~7volts acid battery that can feed up to ~1.2A of current. Our current motors are supposed to work at 12V and 9V, we're going to have a little circuit to feed the motors from our battery. The question is: where can we find some documents/tutorials that will help us building this tiny hovercraft? Any help will be greatly appreciated!