Mikoyan/Gurevich SN

1953

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Mikoyan/Gurevich SN

Despite termination of trials in 1951 with the SU derivative of the MiG-15 featuring paired 23mm cannon on articulated mountings, the basic concept of gun armament capable of elevation and depression for air-air use was persisted with by the MiG OKB. In 1953, flight testing of a more sophisticated development of the concept began as Izdeliye SN. A variation of the MiG-17, the SN was the first fighter of MiG design to feature lateral air intakes, the 2900kg VK-1A turbojet being fed via circular orifices against concave fuselage sides forward of the wing roots. This arrangement permitted installation of the so-called SV-25 armament system consisting of a trio of 23mm TKB-495 cannon mounted asymmetrically (one to port and two to starboard) on an articulated mounting in the nose section. Operated electrically, the cannon could be elevated to 27° 26' and depressed to 9° 48', the complete SV-25 system weighing 469kg. Trials with the SN were discontinued owing to aiming complexities combined with advances in air-to-air missiles.

Mikoyan/Gurevich SN

Specification 
 WEIGHTS
  Take-off weight5620 kg12390 lb
  Empty weight4152 kg9154 lb
 DIMENSIONS
  Wingspan9.63 m32 ft 7 in
  Length12.33 m40 ft 5 in
  Height3.80 m12 ft 6 in
  Wing area22.60 m2243.26 sq ft
 PERFORMANCE
  Max. speed1058 km/h657 mph
  Ceiling14500 m47550 ft

3-View 
Mikoyan/Gurevich SNA three-view drawing (1653 x 1098)

Mikoyan/Gurevich SN

Comments
lxbfYeaa, e-mail, 14.03.2024 06:37

20

reply

Dalhats Laudzafata Avicena, e-mail, 06.04.2014 15:25

I agree too, but maybe the Soviets werent ready for that.

reply

Thalb, e-mail, 25.12.2011 01:05

Gun-gas ingestion problems must have been severe for this configuration! Any reports on this?

I agree with "bombardier" that this could have become a very interesting aircraft if the true potential of the increased space in the nose had been utilized.

reply

bombardier, e-mail, 12.10.2011 16:10

If they had used the space in the nose for a large and powerful radar and not for a complicated pivoting cannon arrangement a very good interceptor would have been born.

reply

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