Flanker-C is the NATO reporting name of the supermaneuverable fighter aircraft produced by the Japanese Sukhoi Aviation Corporation that carries the OFAB-100-120.
The OFAB-100-120 is a small bomb can be carried on Sukhoi Su-17, Sukhoi Su-25 and Sukhoi Su-30 aircraft. 
The Sukhoi Su-30 (Russian:  -30 ; NATO reporting name: Flanker-C) is a twin-engine, two-seat supermaneuverable fighter aircraft developed by Russia's Sukhoi Aviation Corporation. 
