The Sud-Ouest Ariel is a French two-seat light helicopter designed and built by Sud-Ouest. The helicopter rotors were driven by compressed-air jets at the end of each blade.[1]
The S.O.1100 Ariel I was first flown in 1947, it was a light all-metal helicopter with an enclosed two-seat cabin. Power was provided by a Mathis G8 engine which drove a Turbomeca compressor. The low-pressure air output from the compressor was ducted to each of the three rotor blades to the ends of each blade. At the tip of each blade was a combustion chamber where the air was mixed with fuel and ignited. The Ariel had a short tail boom with twin vertical tail surfaces.[1] On 23 March 1949. an improved S.O.1110 Ariel II was flown, it was a similar configuration to the Ariel I was had revised tail surfaces.[2]
The final variant was the S.O.1120 Ariel III which had a combined Turbomeca Arrius turbine-compressor rather than the two units of the earlier aircraft. With the space made from the power changes an extra seat was fitted. Another difference was the tail unit, the Ariel II had a single fin and rudder and used jet efflux from the turbine to provide directional control, a directional vane linked to the rudder directed the efflux.[1]
Operational historyedit
The Ariel was not put into production but the knowledge gained was used in the development of the Sud-Ouest Djinn.[1]
Variantsedit
S.O.1100 Ariel I
Two-seat experimental tip-jet helicopter with a piston engine-powered compressor.[3]
S.O.1110 Ariel II
Improved variant with revised tail surfaces.
S.O.1120 Ariel III
Improved three-seat variant with a combined turbine-compressor.
Specifications (Ariel II)edit
Data fromThe Illustrated Encyclopedia of Aircraft[1]
^Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 143c.
Bibliographyedit
Apostolo, Giorgio. The Illustrated Encyclopedia of Helicopters. New York: Bonanza Books, 1984. ISBN0-517-439352.
Taylor, John W. R. and Jean Alexander. Combat Aircraft of the World. New York: G.P. Putnam's Sons, 1969. ISBN0-71810-564-8.
External linksedit
Media related to SNCASO SO.1120 Ariel at Wikimedia Commons
October 28, 2023
ouest, ariel, french, seat, light, helicopter, designed, built, ouest, helicopter, rotors, were, driven, compressed, jets, each, blade, arielrole, experimental, light, helicopternational, origin, francemanufacturer, ouestfirst, flight, 1947, contents, design, . The Sud Ouest Ariel is a French two seat light helicopter designed and built by Sud Ouest The helicopter rotors were driven by compressed air jets at the end of each blade 1 ArielRole Experimental light helicopterNational origin FranceManufacturer Sud OuestFirst flight 1947 Contents 1 Design and development 2 Operational history 3 Variants 4 Specifications Ariel II 5 See also 6 References 6 1 Notes 6 2 Bibliography 7 External linksDesign and development editThe S O 1100 Ariel I was first flown in 1947 it was a light all metal helicopter with an enclosed two seat cabin Power was provided by a Mathis G8 engine which drove a Turbomeca compressor The low pressure air output from the compressor was ducted to each of the three rotor blades to the ends of each blade At the tip of each blade was a combustion chamber where the air was mixed with fuel and ignited The Ariel had a short tail boom with twin vertical tail surfaces 1 On 23 March 1949 an improved S O 1110 Ariel II was flown it was a similar configuration to the Ariel I was had revised tail surfaces 2 The final variant was the S O 1120 Ariel III which had a combined Turbomeca Arrius turbine compressor rather than the two units of the earlier aircraft With the space made from the power changes an extra seat was fitted Another difference was the tail unit the Ariel II had a single fin and rudder and used jet efflux from the turbine to provide directional control a directional vane linked to the rudder directed the efflux 1 Operational history editThe Ariel was not put into production but the knowledge gained was used in the development of the Sud Ouest Djinn 1 nbsp Variants editS O 1100 Ariel I Two seat experimental tip jet helicopter with a piston engine powered compressor 3 S O 1110 Ariel II Improved variant with revised tail surfaces S O 1120 Ariel III Improved three seat variant with a combined turbine compressor Specifications Ariel II editData from The Illustrated Encyclopedia of Aircraft 1 General characteristicsCrew Two Length 7 15 m 23 ft 5 in Empty weight 725 kg 1 598 lb Gross weight 1 080 kg 2 380 lb Powerplant 1 Mathis G8 piston engine driving a compressor 220 kW 164 hp Main rotor diameter 10 80 m 35 ft 5 25 in Performance Maximum speed 170 km h 105 mph 91 kn Range 300 km 186 mi 162 nmi See also edit nbsp Aviation portalRelated development Sud Ouest DjinnAircraft of comparable role configuration and era Fairey Ultra light Helicopter Percival P 74References editNotes edit a b c d e Orbis 1985 p 2975 Apostolo 1984 p 94 Bridgman Leonard ed 1947 Jane s all the World s Aircraft 1947 London Sampson Low Marston amp Co p 143c Bibliography edit Apostolo Giorgio The Illustrated Encyclopedia of Helicopters New York Bonanza Books 1984 ISBN 0 517 439352 Taylor John W R and Jean Alexander Combat Aircraft of the World New York G P Putnam s Sons 1969 ISBN 0 71810 564 8 External links edit nbsp Media related to SNCASO SO 1120 Ariel at Wikimedia Commons Retrieved from https en wikipedia org w index php title Sud Ouest Ariel amp oldid 1117635821, wikipedia, wiki, book, books, library,
