The ADI Sportster is a two-seat

gyroplane An autogyro (from Greek and , "self-turning"), also known as a ''gyroplane'', is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. Forward thrust is provided independently, by an engine-driven propeller. Whi ...

that has been marketed in plans form for homebuilding since 1974 by

Aircraft Designs Inc Aircraft Designs Inc was a US aircraft design and manufacturing firm founded in Monterey, California by Martin Hollmann in 1976.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page F-1. Cybair Limited Publishing, 2001. Apart ...

.Downey, Julia: ''2005 Trikes 'Chutes and Rotorcraft Directory'', Kitplanes, Volume 22, Number 2, February 2005, page 54. Belvoir Publications. ISSN 0891-1851Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 203. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X It was the first homebuilt gyrocopter design to be able to carry a passenger. The design first flew in 1974 and is built from bolted and riveted

dural Dural is a suburb of Sydney, in the state of New South Wales, Australia 36 kilometres north-west of the Sydney central business district in the local government areas of Hornsby Shire and The Hills Shire. Dural is part of the Hills District. ...

aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...

sheet. The rotor blades use an

NACA The National Advisory Committee for Aeronautics (NACA) was a United States federal agency founded on March 3, 1915, to undertake, promote, and institutionalize aeronautical research. On October 1, 1958, the agency was dissolved and its assets ...

8H12

airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine. ...

Specifications

References

{{ADI aircraft Homebuilt aircraft 1970s United States sport aircraft Single-engined pusher autogyros Sportster Aircraft first flown in 1974