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1982

AISA GN

In pre-war years Aeronautica Industrial SA (AISA) was involved in work on certain early Cierva-type autogyros. In 1953, AISA produced designs for the experimental IH-51 ultra-light helicopter with tip-mounted pulse jet propulsion, and the H-52 which was of conventional layout but featured a single-blade main rotor. Neither design was built, but, in 1974, the company started construction of the prototype AISA-GN, which was an all- metal four-seat autogyro with a small stub wing, three-blade main rotor, twin booms and a fixed tricycle undercarriage. After prolonged development, the prototype was flown on 20 July 1982, powered by a 225kW Lycoming IO-540-K-1A5 engine. The prototype was damaged in September 1982, and the project was then abandoned.

AISA GN

Technical data for AISA GN

Engine: 1 x Lycoming rated at 225kW, main rotor diameter: 12.80m, fuselage length: 6.50m, height: 3.20m, wingspan: 2.60m, take-off weight: 1200kg, empty weight: 708kg, max speed: 240km/h, range: 800km

Comments
Jean-Pierre Harrison, e-mail, 02.04.2014reply

It is easy to allege Reder was a spy. What is the factual basis for the allegation?

C Mac Kay, e-mail, 13.02.2012reply

Otto Reder lived here in Glasgow from about 1931 to 1939, his wife was Jewish. He was in the helicopter division of the Weir Company and he also worked as an associate for the Morris Furniture Company on helicopter blades. He designed banner towing equipment and also the rotating wing for sail boats. He was in fact spying for Hirth and Focke. Weir were working on combustion chambers for Power Jets at the time and those in the helicopter division were involved. They designed a thrust augmentor.Apart from stealing the ideas Reder went on to design violins.

david, e-mail, 22.11.2008reply

the AISA GN .. what is the kit Price. or a second hand one?

Jean-Pierre Harrison, e-mail, 03.05.2008reply

Otto Reder also worked at the Cierva Autogiro Company during the 1930s.

Mats, e-mail, 07.03.2007reply

Hi, I have this book from "Motor Buch Verlag" printed in 1978 ISBN 3-87943-569-3 claiming that a jump start was included. Of interest is also that the head of this project was Mr Otto Reder, former coworker at Flettner /Berlin during wartime (ISBN 3-7637-6115-2)Best regards, Mats /Stockholm

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