The Su-35BM is the prototype version of the Su-35S, designed to replace Su-27’s in Russian service. The Su-35S supersedes the Su-27 in every way: it has new engines which give it 14,500 kg of thrust, an integrated fly-by-wire and aircraft control system, new avionics including a phased array radar, a new wide angle heads up display, an advanced jam-resistant communication system, the ability to mount the latest Russian air-to-air and air-to-ground weaponry on 14 hard points, a new high performance electronic warfare system, limited stealth features, and has the ability to super-cruise.
The Su-35S can reach speeds of up to 1,500 mph, has a range of up to 3,600 km, and can carry up to 8,000 kg of ordnance. The Su-35S can carry all types of weapons, ranging from bombs such as the KAB-1500L, anti-ship missiles such as the KH-35UE, short range air-to-air missiles such as the RVV-MD (an upgraded version of the R-73), and long range air-to-air missiles such as the RVV-SD (an upgraded version of the R-77). The-Su-35S Super Flanker is also rumored to be able to carry a new Russian extreme range air-to-air missile which is currently in development. The Su-35S is considered a 4.5 generation fighter.