helikites

A helikite is a hybrid aerodyne, a cross between a kite and a blimp. It is a buoyant aerodyne, meaning it has internal gas that provides lift, but it also has a large surface area and tail, which provides aerodynamic lift when wind flows over it. This dual lift mechanism allows helikites to fly higher and with greater stability than traditional kites, and to lift heavier payloads.

Helikites were invented by Marcus H. French in 1970. They are typically made of ripstop nylon or polyester fabric and are filled with helium or hot air. Their distinctive shape, often described as a "fatter kite," is designed to maximize both aerodynamic and buoyant lift. The design features a large, wing-like surface combined with a blimp-like body.

Due to their stability and lifting capabilities, helikites have found various applications. They are used in meteorology for carrying weather instruments, in surveillance and reconnaissance for aerial observation, and in telecommunications for relaying signals. They have also been employed in aerial photography and for lifting temporary structures. The ability to remain aloft for extended periods with minimal ground support makes them a versatile tool for a range of aerial tasks. Their design allows them to operate in a wider range of wind conditions compared to many other aerodynes.