Polikarpov ITP


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Polikarpov ITP

In 1941, the Polikarpov OKB began work on an Istrebitel' Tyazhely Pushechny - heavy cannon fighter - which was to mount a 37mm cannon between the cylinder banks of a 1,650hp Klimov M-107P 12- cylinder liquid-cooled Vee engine, and also carry two synchronised 20mm cannon. The aircraft was of mixed construction, the fuselage being a wooden monocoque and the wing of steel and dural. The first prototype, referred to as the M-1, was completed in October 1941, but difficulties with the engine delayed the initiation of flight testing until 23 February 1942. An M-107A replaced the M-107P late in 1942, but engine difficulties were still experienced, and a second prototype, the M-2, was completed with an AM-37 engine of 1,400hp with which it flew on 23 November 1943. The M-2 had an armament of three 20mm cannon and eight RS-82 unguided rocket projectiles, the engine eventually being replaced by an AM-39 of 1,700hp. Factory flight testing continued until June 1944 when the programme was abandoned.

Polikarpov ITPA three-view drawing (1280 x 970)

  Take-off weight3570 kg7871 lb
  Empty weight2960 kg6526 lb
  Wingspan10.00 m33 ft 10 in
  Length8.95 m29 ft 4 in
  Wing area16.45 m2177.07 sq ft
  Max. speed655 km/h407 mph
  Range1280 km795 miles

sven, 09.09.2016 18:54

The 37mm cannon had a very slow rate of fire. Aiming was said to be difficult.


Martijn, 09.09.2016 17:28

But probly hard (very) to fly other than straightahead .


bombardier, e-mail, 23.05.2011 15:09

An impressive fighter with high speed and very heavy armament


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