AV-122 Dragon is a heavy bomber built mostly from scraps of MiG 25 fleet in 70's to counter threat by fascistic Rameniak. Built largely from steel and wood as aluminum was difficult to get through naval blockade. Steel skeleton gave aircraft ability to absorb damage that could destroy any other bomber with penalty on performance. It has low speed, low ceiling and flies and can take hits like ton of bricks. In addition to typical (fire)bombing missions it can be used in anti-ship missions with Silkworms and Exocets and air defense role with missiles meant for SAMs such as Kub and later Buk/Uragan.
Design was refined and production restarted as supersonic AV-124 Wyvern with more aluminum available and with titanium applied where needed. Wyvern featured much more swept wings, longer hull, MiG 31 parts and superior performance in every category.