Socata GY-80 Horizon & ST-10 Diplomate

  • CountryFrance
  • TypeFour seat light aircraft
  • PowerplantsGY-80-160 - One 120kW (160hp) Lycoming O-320-B2B flat four piston engine driving a two blade fixed pitch propeller. ST-10 - One 150kW (200hp) Lycoming IO-360-C fuel injected flat four driving a two blade fixed pitch or optional constant speed propeller.
  • PerformanceGY-80-160 - Max speed 240km/h (130kt), cruising speed 234km/h (126kt). Initial rate of climb 690ft/min. Service ceiling 13,940ft. Range with max fuel 950km (515nm). ST-10 - Max speed 280km/h (151kt), cruising speed 265km/h (143kt). Initial rate of climb 1005ft/min. Service ceiling 16,400ft. Range with four people on board 1385km (745nm).
  • WeightsGY-80-160 - Empty 620kg (1365lb), max takeoff 1100kg (2425lb). ST-10 - Empty 723kg (1594lb), max takeoff 1220kg (2690lb).
  • DimentionsGY-80-160 - Wing span 9.70m (31ft 10in), length 6.64m (21ft 10in), height 2.60m (8ft 6in). Wing area 13.0m2 (139.9sq ft). ST-10 - Same except length 7.26m (22ft 10in), height 2.88m (9ft 6in).
  • CapacityTypical seating for four.
  • Production267 GY-80 Horizons of all models and 55 ST-10 Diplomates were built. Production ceased in 1974.

The Horizon and Diplomate are moderately elite retractable undercarriage four seaters which were implicit generally unassuming numbers.

The introductory GY-80 Horizon started life as a secretly created outline penned by Yves Gardan, who had likewise been in charge of various other post bellum light flying machine plans. Gardan manufactured a model as a private advancement which flew on July 21 1960. After two years, Sud Aviation (now Aerospatiale) gained the configuration and generation rights for the GY-80 and put the sort into creation. Sud Aviation assembled three preproduction improvement airplane before putting the GY-80 into creation in late 1963.

A key perspective to the GY-80 was its basic configuration and technique for development. The GY-80 was of traditional appearance yet marginally uncommon development, with an aluminum cleaned steel tubular structure for the lodge range, and monocoque tailcone blasted rearward. It offered a retractable tricycle undercarriage, Frise opened ailerons and Fowler folds. The folds are forever joined with the undercarriage linkage which is wound all over physically with a handle distending from the instrument board. To diminish upkeep costs, the folds, ailerons and flat tail pieces were exchangeable (in principle, yet they required to be altered on the off chance that they were awhile ago utilized at another position). The Horizon was manufactured utilizing auto get together procedures, with only 11 creation dances.

Three renditions of the Horizon were constructed, contrasting in powerplant and fuel tankage. These were the 110kw (150hp) Lycoming O-320-A controlled GY-80-150, the 120kw (160hp) O-320-B2b fueled GY-80-160, and the 135kw (180hp) Lycoming O-360-A fueled GY-80-180. These were fabricated firstly by Sud Aviation, and after that by its recently settled light airplane division, Socata, from 1966.

Socata flew an enhanced improvement of the GY-80, at first called the Super Horizon 200, on November 7 1967. This new advancement emphasized an extended lodge and an all the more compelling 150kw (200hp) fuel infused Lycoming IO-360-C. In generation somewhere around 1969 and 1974, the Super Horizon was renamed Provence, and afterward the ST-10 Diplomate, the recent turning into the sort's authoritative name.

Pictures of Socata GY-80 Horizon & ST-10 Diplomate