Sukhoi Su-20
Sukhoi Su-20 (S-32MK) | |
---|---|
Polish Su-20 |
|
Type: | Fighter bomber |
Design country: | |
Manufacturer: | |
First flight: |
December 15, 1972 |
Commissioning: |
1974 |
Production time: |
1973-1976 |
Number of pieces: |
140 |
In the Suchoi Su-20 ( Russian Сухой Су-20 , internal designation S-32MK ) is a fighter-bomber the Soviet Union from the Suchoi -Flugzeugfamilie Su-7 to Su-22 .
development
The Su-20 is an export version of the Su-17M , which was developed after a decision by the Soviet government to modernize the equipment of the Su-17 in February 1972. The first flight of the prototype known as the S-32MKI took place in December of the same year. Trials were completed after a year and the model was released for export in December 1973. Users were the Middle East countries Egypt, Iraq and Syria. Poland was the only one of the Warsaw contracting states to receive the Su-20 and kept it until 1997. There was also a reconnaissance version, the Su-20R . From the outside, the Su-20 and the improved Su-22 model differ from the Su-17 mainly in the flatter ridge between the cockpit and tail fin. All of the above and their predecessor Sukhoi Su-7 have the same NATO code name: Fitter.
Technical specifications
Parameter | Data |
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span | 13.68 m with minimum sweep 10.025 m with maximum sweep |
length | 18.10 m |
height | 4.96 m |
Wing area | 38.49 m² with minimum arrow 34.45 m² with maximum arrow |
Empty mass | 9,950 kg |
Takeoff mass | maximum 16,270 kg |
Engine | a jet engine Ljulka-AL-21F-3 |
power | 7,800 kp 11,200 kp with afterburner |
Top speed | 1,350 km / h near the ground, 2,220 km / h at an altitude of over 11,000 m |
Service ceiling | 17,600 m |
Range | 1,000 km |
Operating radius | 675 km with a 2,000 kg weapon load |
crew | 1 |
Armament
- Fixed cannon armament in the wing roots on each side
- 1 x 30 mm automatic cannon Nudelman-Richter NR-30 at 80 rounds of ammunition. Reinforcement plates were attached to the hull to protect the outer shell at the level of the cannon muzzle.
- Gun load of 3,000 kg on eight weapon pylons (two of which pivot on the outer wings)
- Air-to-air guided missile
- 2 × APU-60-1 starting rails for 1 × Wympel R-60 M (K-60 or AA-8 "Aphid") each - infrared-controlled, self-targeting for short distances
- 2 × BD-60-21U starting rails for 1 × Wympel R-3 S (K-3S or AA-2 "Atoll") each - infrared-guided, self-targeting for short distances
- Air-to-surface guided missile
- 2 × APU-68UM starting rails for 1 × Swesda Ch-23 (AS-7 "Kerry") each - radio-controlled
- Unguided air-to-surface missiles
- 6 × UB-32M-57 missile tube launch containers for 32 unguided S-5 air-to-surface missiles each ; Caliber 57 mm
- 6 × UB-16-57UM missile tube launch containers for 16 unguided S-5 air-to-surface missiles each; Caliber 57 mm
- Unguided free-fall bombs
- 8 × FAB-100 (100 kg free fall bomb )
- 8 × FAB-250 (250 kg free fall bomb)
- Additional container
- 4 × drop-off additional PTB-800 tanks for 800 liters of kerosene
- 4 × drop-off additional tanks PTB-1150 for 1,150 liters of kerosene
literature
- Dieter Stammer: Modern Soviet and Russian warplanes . Bombers and fighter bombers. Edition Berolina, Berlin 2012, ISBN 3-86789-808-1 , p. 126-128 .