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D-ELAH

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D-ELAH Sud-Aviation GY-80-180 Horizon c/n 141 - Flugplatz Rheine-Eschendorf in Germany - 2 September 2017 more of Sud-Aviation

The Sud-Aviation GY-80 Horizon is a four-seat single engined low-wing aircraft built in France. The GY-80 Horizon was designed by Yves Gardan during the 1950s. Piloted by Pierre Simon, the Gardan GY-80 Horizon prototype (c/n 01 F-WJDU) flew first on 21 July 1960. On 10 July 1062, Sud-Aviation acquired a license to build and market the four-seat all-metal light aircraft. The first three of seven pre-production development models built by SOCATA (Société de Construction d'Avions de Tourisme et d'Affaires) under licence for Sud Aviation were flown in early 1963. The type certificate for the GY-80-150 and the GY-80-160 was granted on 2 May 1963. Deliveries of the Sud-Aviation GY-80 Horizon aircraft built by their full subsidiary SOCATA at Nantes and Rochefort started in 1963. The four-seat cabin monoplane design used a low-mounted cantilever wing which incorporated four mechanically operated Fowler-type trailing-edge flaps and two Frise-type ailerons. The tricycle undercarriage was partially retractable (a little more than half of each wheel remains exposed in the retracted position). A simple structure was employed, comprising a light alloy-covered welded steel-tube forward fuselage and a light alloy monocoque rear fuselage. The flap sections, and the fin and halves of the slab-type tailplane were interchangeable. Three versions were initially offered, being respectively fitted with a 150 hp Lycoming O-320-A four-cylinder air-cooled engine with fixed-pitch airscrew and a 160 hp O-320-B with fixed- or variable-pitch airscrew. Later models had as standard powerplant a 160 hp Lycoming 0-320-D engine driving a fixed-pitch two-blade propeller. Late in 1964, it was decided to supplant the 160 hp-engined model with a variant powered by a 180 hp Lycoming 0-360-A1A flat four piston engine. Flight testing of the more powerful model commenced during the autumn of that year. The 180 hp engined Horizon featured a redesigned engine cowling and wheel fairings and a three-blade constant-speed propeller was optional. However the vast majority of the GY-80 Horizon aircraft were delivered to civilian customers mainly in France, ten GY-80-180 Horizon aircraft were used in Cambodia as military trainer, first with the Khmer Air Force where they replaced the obsolete MS 733 Alcyons and later with the Royal Cambodian Air Force. In January 1968, the Australian Southern Aeronautics Pty Ltd signed an agreement with Sud Aviation for the Australian franchise to distribute and manufacture the Sud Horizon. They would initially assemble the GY-80 Horizon aircraft built in France and then gradually introduce Australian produced components until reaching 100% Australian content. These plans were never realized and in August 1971 Southern Cross Aviation was wound up by a meeting of creditors in Perth. When production of the Sud-Aviation GY-80 Horizon ended in 1969, a total of 267 GY-80 Horizon airframes were built.

Based on the GY-80 Hozizon design, Yves Gardan developed the GY100 Bagheera, a four-seat single engined low-wing aircraft. The SITAR GY 100 Bagheera was equipped with a fixed gear and powered by a 135 hp Lycoming O-320 engine. Only two GY 100 Bagheera were built by SIPA, with the prototype flying on 20 December 1967. Although the type certification was granted in 1971, and SIPA would build the aircraft under subcontract of SITAR, the GY-100 Bagheera didn't enter production partly because the design arrived on the market at the moment of the oil crisis. An improved variant of the GY-80 Horizon developed by SOCATA was the Super Horizon 200. Originally known as the Super Horizon 200, this four-seat civil light aircraft was later renamed ST 10 Provence, before finally being named the ST-10 Diplomate. With the prototype flying on 7 November 1967, production started in 1970. When production ended in 1974, a total of 55 ST 10 Diplomate aircraft were built.

In May 1966, the Sud Aviation GY-80 Horizon c/n 141 was registered D-ELAH in Germany as a Gardan GY 80-180 with Adam Hereth, Bayreuth. In 1969, registration D-ELAH was cancelled first, but in November of the same year restored as D-ELAH to the register. On 15 April 1974, the aircraft was substantialy damaged and registration D-ELAH was cancelled in 1974. After rebuilt of the GY-80-180 Horizon, the aircraft was restored again to the register as D-ELAH in October 1977, this time as a Socata GY-80-180 Horizon as registered type. On 2 September 2017, the in January 1966 built Sud Aviation GY-80-180 Horizon D-ELAH was seen at Flugplatz Rheine-Eschendorf.

page last updated 13-06-2017
Copyright © Jack Wolbrink, Emmen, the Netherlands
 

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