Russia Launches Fighter Jet Su-25SM3 Grach After Upgrade with Deadly Missiles

Russia Launches Fighter Jet Su-25SM3 Grach After Upgrade with Deadly Missiles. Russia has recently successfully upgraded its flagship fighter, the Sukhoi Su-25 Frogfoot, with a number of advanced devices. The Su-25 fighter jet that was successfully modernized is known as the Su-25SM3 Grach fighter jet which is equipped with an electronic anti-missile portable air defense system. The Su-25SM3 Grach fighter jet is equipped with the Vitebsk air defense system. This device is able to protect the Su-25SM3 from attacks by man-portable air defense systems.