IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Early helicopter engineers soon ...

Leonardo has been granted a patent for a convertiplane featuring a fuselage, rotors, and engines that enable transitions between helicopter and airplane configurations. The design includes electric ...

Both military and civilian aircraft users have long demanded a helicopter-airplane hybrid: a “convertiplane” that can take off vertically like a helicopter and fly as fast and as economically as an ...

A convertiplane developed by Russian Helicopters has made its maiden flight, unmanned. The prospective multi-purpose tilt-rotor UAV, with vertical take-off and landing, high-speed level flight and ...

The dream aircraft that takes off vertically like a helicopter, but flies horizontally like a proper airplane, is gradually coming true. Last week, at Fort Worth, Bell Aircraft Corp. showed a ...