The Sukhoi Su-35 is a heavily upgraded Russian multirole fighter jet based on the Su-27 Flanker design. It has enhanced avionics, radar, weapons, and engine capabilities that allow it to detect and engage multiple aerial targets simultaneously out to ranges of 400km. The Su-35 carries a large payload of air-to-air and air-to-ground weapons on 14 external hardpoints and has an internal 30mm cannon. It is powered by two upgraded AL-41F1S turbofan engines with thrust-vectoring capabilities.