Sud-Ouest SO9050

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SO 9000/9050
Sud Ouest SO 9000 Trident I from the Musée de l'Air et de l'Espace
Type: Experimental airplane
Design country:

FranceFrance France

Manufacturer:

SNCASO

First flight:

March 2, 1953

Number of pieces:

3

The Sud-Ouest SO9000 / 9050 is a French experimental military aircraft from the 1950s.

In the late 1940s, development work began for this supersonic - interceptor with mixed drive ; Dassault Aviation pursued a similar concept with the MD.550 Mirage .

In March 1953 the prototype SO9000 Trident took off for the first flight . The single-seat machine had a fuselage in sandwich construction, in the rear of which a three-chamber rocket engine SEPR-481 (4,400 kp) was installed. At the ends of the trapezoidal blades with an extremely thin profile, there were initially two lightweight Turboméca Marboré turbines , which were later replaced by two Armstrong Siddeley Vipers (770 kp each). The machine had no ailerons , but flaps that extended over the entire wing ; the function of the ailerons was taken over by the undamped horizontal stabilizer with a strongly negative V-position .

In 1955 the smaller SO9050 Trident II followed, which however had a larger wing depth. It took off for the first flight on July 19, 1955 and showed overall the expected performance, so that the construction of a pilot series began. In 1957, the Trident II crashed on a test flight, whereupon the series was canceled. After the completion of a last machine, known as the Trident III, the entire project was canceled because the Mirage III was a suitable model.

Technical specifications

Parameter Data SO9050 Trident II
crew 1
length 14.00 m
span 8.20 m
height 3.70 m
Wing area 9.20 m²
Empty mass 2,625 kg
Takeoff mass 5,000 kg
Top speed 2,340 km / h at 24,000 m
Ascent time to 15,000 m 2:30 min
Summit height 24,000 m
Engines 2 tsp Turbomeca Gabizo , each 1,100 kp without and each 1,500 kp with afterburner; 1 rocket engine SEPR 631, 3,400 kp
Armament 1 guided missile air-to-air

Web links

Commons : SNCASO SO.9000 Trident  - collection of pictures, videos and audio files

Individual evidence

  1. History of Trident (French)