Technical data
Type 2U-B3
Function Trainer
Year 1926
Crew 2
Powerplant
Type 1*BMW-IIIa
Power at 0m 185hp
Armament
Gun Type 1*mg Vickers
Position fixed forward-firing
Gun Type 1*mg Lewis
Position flexible in rear cockpit

2U-B3, V.L.Moiseenko

24k b/w photo from "Soviet Aircraft and Aviation 1917-1941", p.299
(courtesy of Thomas Heinz)

Two-seat biplane trainer, intended as a transition from primary trainers (U-2) to combat aircraft. It was a parallel project to N.N.Polikarpov's P-2, having similar diagonal strut instead of the lift and anti-lift wires. It was built at GAZ-1 at Moscow according to a specification from February 1925. and later received the designation P-1.

Upper and lower wings had same span, upper wing moved slightly ahead of the lower one. Forward fuselage covered with plywood, the rest of skinning - fabric. As a trainer, 2U-B3 was equipped with dual controls.

The prototype was completed on February 25, 1926. test flown at the factory and handed over to NII VVS in September. State trials were completed on January 4, 1927. All the requirements fulfilled , but the 2U-B3 was not built in series because the P-2 with more powerful engine was adopted for production. A first batch of ten aircraft, ordered in February 1927, was cancelled.

References
  • "History of aircraft construction in the USSR", Vol.1 p.352;
  • "Soviet Aircraft and Aviation 1917-1941", p.299
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  • Modified on May 25, 2001
    with help of Thomas Heinz
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