To meet a requirement for a heavy escort fighter, or TIS
(Tyazhely istrebitel soprovozhdeniya), formulated in
the autumn of 1938, the Polikarpov OKB designed a
low-wing monoplane of all-metal construction
powered by two 1,400hp Mikulin AM-37 engines.
Fixed forward-firing armament comprised four
7.62mm and two 20mm guns, rear protection being provided by single flexible 7.62mm guns fired from
dorsal and ventral positions by the second crew member.
The first prototype, Samolet A, was flown in September
1941, but evacuation of the Polikarpov facilities
to Novosibirsk delayed the programme, and an improved
second prototype, Samolet MA, was not flown
until 13 June 1944. The MA was intended to be powered
by 1,700hp Mikulin AM-39 engines, but their non-availability
dictated installation of 1,665hp AM-38 engines.
Fixed forward-firing armament was changed to two
37mm cannon and two 12.7mm machine guns. The
flight testing of the MA was in its early stages when, on
30 July 1944, Polikarpov died and his OKB was almost
immediately disbanded, the TIS programme being
|A three-view drawing (1278 x 858)|
| Take-off weight||7840 kg||17284 lb|
| Empty weight||5800 kg||12787 lb|
| Wingspan||15.50 m||51 ft 10 in|
| Length||11.70 m||38 ft 5 in|
| Height||4.35 m||14 ft 3 in|
| Wing area||34.85 m2||375.12 sq ft|
| Max. speed||555 km/h||345 mph|
| Range||1070 km||665 miles|
|Kelly Wellington, e-mail, 13.03.2012 01:33|
An interesting similarity to the Petlyakov Pe-2.
|God, 18.04.2011 21:21|
Purley perfecto taco cheese. im on a cross =]
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All the World's Rotorcraft