Historical information
The Tupolev ANT-7, known by the VVS as the Tupolev R-6 was a reconnaissance aircraft and escort fighter of the Soviet Union.
The R-6 traces its roots back to early 1928 when the Soviet Air Force needed a long-range multirole aircraft. The requirements were that it could be used for long-range transport, defensive patrolling, reconnaissance, light bombing and torpedo attacks.
Some were built with floats as the MP-6, (also known as KR-6P), for maritime patrol duties.