Grigorovich I-2
The Grigorovich I-2 was a biplane fighter aircraft of the Soviet Union, the first indigenous fighter to enter service in substantial numbers. Developed from the Grigorovich I-1, it first flew on 4 November 1924, piloted by A.I. Zhukov. The M-5 engine was a Soviet copy of the Liberty L-12.
Production of the redesigned I-2bis was 211 aircraft. Production was performed by Aviation Repair Plant No.3 in Smolensk.Operators
