The most notable feature of the Su-37 was its super maneuverability, due to the addition of three-dimensional thrust vector engines.
The first flight of the Su-37 was remarkable. It came at a time when ambitious post-Soviet military aviation programs were being canceled consecutively. The Su-27 was the least expensive of the aircraft programs of the time such as the MiG-1.44, so production continued. In addition, another factor that helps the Su-27M continue to produce, is being popular in export markets.
The most notable feature of the Su-37 was its super maneuverability, due to the addition of three-dimensional thrust vector engines. This is a technology that has been developed in the Soviet era since the early 1980s.
The Su-37 airframe entered testing in early 1995 and was delivered to the Sukhoi design bureau test plant, for the installation of thrust vector nozzles. Due to the collapse of the Soviet Union, the plan to equip the more powerful AL-37FU engine was canceled and replaced with the AL-31FP engine.
The engine was similar to the AL-31F engine used on the Su-27, but had thrust vector nozzles for added power. Another notable feature, the digital flight control system, was linked directly to the thrust vector control system. This gave the Su-37 better maneuverability at high attack angles at low speeds.
The Su-37 had more powerful sensors than any other Russian fighter. It was equipped with a doppler phase array radar, which provided the ability to track 20 aerial targets simultaneously. The new radar also had both air-to-air and air-to-ground capabilities.
The weapon system of the Su-37 was relatively modern. It possessed 12 external hardpoints, capable of carrying 14 Vympel R-73E short-range air-to-air missiles. The R-73 is an infrared homing missile with a sensitive. Minimum engagement range is about 300 meters, with maximum aerodynamic range of nearly 30 km at altitude.
In addition, the Su-37 was equipped with Kh-25 (AS-12 Kegler) and Kh-29 (AS-14 Kedge) air-to-ground missiles with 317 kg warhead, and a 30 mm GSh-301 cannon with maximum rate of fire 1,500 rounds/min.