Sukhoi Su-25 Frogfoot (Part 1). I present a comprehensive AI traffic model package for this close air support aircraft. The Su-25, known as the Grach (Rook), was put into service in 1981, was designed as a comparable aircraft to the USAF A-10 Warthog, focused on battlefield close air support. Starting with Afghanistan, the Su-25 proved itself to be an extremely versatile and survivable aircraft, and has been in service ever since. Just over 1,000 were built in various models, and have been or are operated by thirty countries. An original 8-LOD model brings this historic aircraft to the flightsim world. This is part 1, representing the pre-1990 Su-25 and Su-25UB, in the service of Russian Frontal aviation and early export users; with 8 models and 60 repaints. Aircraft, textures, and flight dynamics by Michael Pearson.