Polikarpov ITP

1942

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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.

3-View 
Polikarpov ITPA three-view drawing (1280 x 970)

Specification 
 MODELM-1
 WEIGHTS
  Take-off weight3570 kg7871 lb
  Empty weight2960 kg6526 lb
 DIMENSIONS
  Wingspan10.00 m33 ft 10 in
  Length8.95 m29 ft 4 in
  Wing area16.45 m2177.07 sq ft
 PERFORMANCE
  Max. speed655 km/h407 mph
  Range1280 km795 miles

Comments
Anonymous, 24.08.2022 18:11

"Factory flight testing continued until June 1944 when the programme was abandoned." Polikarpov died of cancer during July of 1944, after which his design bureau was disbanded and the engineers who worked in it re-assigned to the MiG design bureau.

reply

sven, 09.09.2016 18:54

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

reply

Martijn, 09.09.2016 17:28

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

reply

bombardier, e-mail, 23.05.2011 15:09

An impressive fighter with high speed and very heavy armament

reply

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