SNCASO SO.1120 Ariel III
SNCASO (abbreviated from Société Nationale des Constructions Aéronautiques du Sud-Ouest, or commonly, Sud-Ouest) was formed in 1936 from the merger of several French aircraft manufacturers. (SNCASO merged with SNCASE in 1957 to form Sud Aviation, which became part of Aérospatiale in 1970, and is today part of the Airbus legacy.) The Sud-Ouest SO.1120 Ariel III tip-jet helicopter flew for the first time on April 18, 1951. It was powered by a 260 hp (195 kW) Turbomeca Artouste turbocompressor, which provided compressed air for the tip jets at the tips of its 35.4 ft (10.8 m) diameter 3-bladed rotor. The helicopter had a conventional layout; but instead of a tail rotor, it used the exhaust from the turbine as a source of high-pressure air for directional control-in effect. Two prototypes of the Ariel III were built, both capable of carrying 3 persons side by side. The two prototypes (registered as F-WFUY and F-WBBL) flew very successfully for quite some time. In the end, the Ariel series of tip jet helicopters’ greatest contribution was that they paved the way for SNCASO to develop and produce the most successful of the tip jet helicopters, the SO.1221 Djinn. The Ariel III also pointed the way for future rotorcraft designers to use turbine powerplants as the engine of choice for helicopters. Note: The media sometimes erroneously state that the Kaman K-225 turbine-powered demonstrator was the first turbine-powered helicopter to take flight. It was, however, the first turboshaft-driven helicopter to fly; first flight was in Dec. 1951, 8 months after the Ariel III.
Source: "Sud-Ouest SO.1120 Ariel III | First gas turbine-powered helicopter", Erasmo Piñero, Jr., 2019 VTOL History Calendar
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SNCASO SO.1120 Ariel III
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SNCASO SO.1120 Ariel III
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SNCASO SO.1120 Ariel III
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If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.
SNCASO SO.1120 Ariel III
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If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.
SNCASO SO.1120 Ariel III
This content is reserved for AHS members. If you are a current member, please use the Member Login link at the top of the page.
If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.
SNCASO SO.1120 Ariel III
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