CarterCopter CCHT
(Heavy transport design study for a convertiplane combining Autogiro and fixed-wing flight, here in United States Marines markings)(Model by Fred Griffin, Griffin Aerospace Models)
Fairey Aviation (England) Rotodyne
a convertiplane capable of taking off as a helicopter, flying as an Autogiro and landing as a hericopter, carrying 40 passengers and a crew of 3 at 200 mph in 1957.