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.
| Take-off weight||5620 kg||12390 lb|
| Empty weight||4152 kg||9154 lb|
| Wingspan||9.63 m||32 ft 7 in|
| Length||12.33 m||40 ft 5 in|
| Height||3.80 m||12 ft 6 in|
| Wing area||22.60 m2||243.26 sq ft|
| Max. speed||1058 km/h||657 mph|
| Ceiling||14500 m||47550 ft|
|A three-view drawing (1653 x 1098)|
|Dalhats Laudzafata Avicena, 06.04.2014|
I agree too, but maybe the Soviets werent ready for that.
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.
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.
Do you have any comments about this aircraft ?