Central to the VTOL revolution is the use of electric propulsion. This allows a whole new kind of VTOL different from old-school helicopters. Today, batteries are only barely good enou… See more

Some teams are taking the term "flying car" literally -- they want a vehicle that can move on the ground on wheels, and get small enough to drive on roads and park in automobile … See more

Some vehicles still want to use a runway. After all, airplanes that use runways are a solved problem, and they can be efficient. The original Terrafugia named above is a classic exa… See more

Some designs have exposed rotor blades, and some try to embed them in the body, in shields, or in ducted fans. Protecting them can reduce risk to pedestrians and noise, but can ad… See more