Sukhoi Su-15 (1948)
| Sukhoi Su-15 (P) | |
|---|---|
| Type: | Fighter plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
November 10, 1948 |
| Number of pieces: |
1 |
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The Sukhoi Su-15 ( Russian Сухой Су-15 , also: Project P , NATO code name " Type 18 ") is a Soviet all-weather fighter from the second half of the 1940s. It should not be confused with the much better known aircraft from the OKB Sukhoi , the Su-15 interceptor aircraft .
development
Project P was developed by Pavel Sukhoi in 1948 . It was constructed in a middle-decker construction with wings swept at 35 °. Two Klimow RD-45 engines were used as drives , which were located one behind the other in the fuselage. The front engine was under the cockpit, with a thrust opening behind the wing trailing edge, while the rear, higher engine was located in the fuselage. The thrust opening was located under the tail unit.
The swept wing had a sweep of 35 °, two spars and carried integral tanks. On each wing there were two boundary layer fences that extended over the entire wing depth. Both the ailerons and the Fowler flaps were operated hydraulically. The wing had an angle of incidence of 0 °. The air inlet was located in the center of the bow and was divided by a central bar, with the right inlet supplying the rear engine. Both the electronics room for the RP-1D “Thorium” radar unit and the cockpit were air-conditioned and pressurized. The cockpit was moved from the center line to the left, had an electrically heated windscreen and an electrically movable hood. The pilot had an ejection seat. Two jump starters could be mounted at the stern and two air brakes were also attached there. The tail unit was also swept (horizontal tail unit: 40 °) and formed in a cross shape. The rudder surfaces were also operated with hydraulic support. The trimming, however, was done electrically. The nose wheel landing gear was also hydraulically retractable. The nose wheel was pulled in to the rear, the main landing gear inwards towards the fuselage.
The armament consisted of two 37 mm Nudelman N-37 cannons, each with 55 rounds. The prototype first flew on November 10, 1948 (other sources: January 11, 1949) and was tested by the test pilots S. G. Anochin and G. M. Schijanow. There was strong flutter during a high-speed flight at two kilometers . Anochin shot himself out of the machine with the ejection seat. Since the pattern was then not taken over into production, the type designation was assigned again later. A second prototype, designed as a long-range fighter, was no longer completed.
Technical specifications
| Parameter | Data |
|---|---|
| span | 12.87 m |
| length | 15.44 m |
| height | 5.66 m |
| Wing area | 36.00 m² |
| Empty mass | 7,409 kg |
| Takeoff mass | 10,437 kg |
| Engines | two RD-45F with 21.6 kN takeoff thrust each |
| Top speed | 1,032 km / h at an altitude of 4,550 m |
| Climb performance | 2,000 m / min |
| Summit height | about 14,000 m |
| Range | 1,200 km |
| Tank capacity | 2,875 l |
| crew | 1 pilot |
literature
- Wilfried Bergholz: Russia's great aircraft manufacturer . The complete type book. Jakowlew, Mikojan / Gurewitsch, Suchoj. Aviatec, Oberhaching 2002, ISBN 3-925505-73-3 , p. 171 .
- Karl-Heinz Eyermann : Jet-powered Soviet experimental aircraft . In: Wolfgang Sellenthin (Ed.): Deutscher Fliegerkalender 1968 . German Military Publishing House, Berlin 1967, p. 192/193 .