Ultralight aviation is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with ailerons
Huntair Pathfinder Mark 1 ultralight
Pegasus Quantum 145-912 ultralight trike
An ultralight trike or paratrike is a type of powered hang glider where flight control is by weight-shift. These aircraft have a fabric flex-wing from which is suspended a tricycle fuselage pod driven
Ultralight aviation
…Fixed-wing aircraft: traditional airplane-style designs. Weight-shift control trike: use a hang glider-style wing, below which is suspended a three-wheeled carriage which carries the engine and aviators. These aircraft are controlled…
Ultralight trike in Prokhorovka, Belgorod Oblast
'Dr. George A. Spratt towed his hang glider on floats using a motorboat. USA, 1929
First towing tests of NASA's Paresev glider (Para Wing Research Vehicle), March 1962.