The Saunders Helicogyre was a 1920s experimental helicopter designed by Vittorio Isacco and built by S.E.
[1] Vittorio Isacco designed and built four different Helicogyre experimental helicopters between 1926 and 1935.
In 1928 Air Ministry Specification 2/28 was issued to S.E Saunders for a prototype helicopter to the Helicogyre No.
[1] At the front of the fuselage was a 100 hp (75 kW) Armstrong Siddeley Genet piston engine.
[1] The Helicogyre serial number K1171 was completed in 1929 and delivered to the Royal Aircraft Establishment at Farnborough by road.