Sukhoi Su-1

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Su-1/Su-3
Su-1
Type	High-altitude fighter
Manufacturer	Sukhoi
Designed by	Pavel Sukhoi
Maiden flight	15 June 1940
Status	Prototype
Primary user	Soviet Air Force
Number built	one Su-1, one Su-3

Sukhoi Su-1 or I-330 (Russian: Сухой Су-1) was a prototype Soviet high-altitude fighter aircraft built at the beginning of World War II. Su-3 (I-360) was an improved version of the original design.

Contents 1 Development 2 Su-3 3 Specifications (Su-1) 4 References 5 External links 6 Related content

[edit] Development

In 1939, Sukhoi was tasked with designing a high-altitude fighter. The resulting Su-1 was a conventional monoplane with a streamlined wooden semi-monocoque fuselage and a low-set all-metal wing made of duralumin. The cockpit was not pressurized. The key feature of the aircraft was a pair of TK-2 turbochargers driven by exhaust gases from the Klimov M-105P engine.^[1] The prototype was completed in May 1940. It first flew on 15 June 1940 with A.P. Chernyavsky at the controls and underwent limited flight testing until April 1941, reaching a top speed of 641 km/h (345 knots, 400 mph) at 10000 m (32,810 ft).^[1] However, the turbochargers proved unreliable and without them the aircraft was inferior to the Yakovlev Yak-1.^[2]

[edit] Su-3

The second Su-1 prototype was built as a Su-3 which differed in having a revised wing with wing area reduced to 17 m² (183 ft²). It was completed in 1941 but did not fly. The project was abandoned due to continuing problems with the TK-2 turbochargers.^[1]

[edit] Specifications (Su-1)

Data from ^[1][3]

General characteristics

• Crew: 1
• Length: 8.42 m (27 ft 8 in)
• Wingspan: 11.50 m (37 ft 9 in)
• Height: 2.71 m (8 ft 11 in)
• Wing area: 19 m² (205 ft²)
• Empty weight: 2495 kg (5,500 lb)
• Loaded weight: 2875 kg (6,340 lb)
• Powerplant: 1× Klimov M-105P liquid-cooled twin-turbocharged V12 engine, 820 kW (1,100 hp)

Performance

• Maximum speed: 640 km/h (345 knots, 400 mph) at 10000 m (32,810 ft)
• Range: 720 km (390 nm, 445 mi)
• Service ceiling: 12500 m (ft)
• Rate of climb: 10.33 min to 10000 m (32,810 ft)

Armament

• 1x 20 mm (0.79 in) ShVAK cannon
• 2x 7.62 mm (0.30 in) ShKAS machine guns

[edit] References

1. ^ ^{a b c d} Shavrov V.B. (1994). Istoriia konstruktskii samoletov v SSSR, 1938-1950 gg. (3 izd.). Mashinostroenie. ISBN 5217004770. 
2. ^ Sukhoi Su-1, 3. Sukhoi Company Museum. Retrieved on 2007-01-14.
3. ^ Green, W; Swanborough, G (2001). The Great Book of Fighters. MBI Publishing. ISBN 0760311943. 

[edit] External links

[edit] Related content

 

Comparable aircraft

• Mikoyan-Gurevich MiG-1

 

 

See also