Russian 5th Gen T50PAKFA to get newly-designed engine



The United Engine Corporation (UEC) has successfully conducted the first ground-based ignition of the second stage of the engine for the Prospective Airborne Complex of Frontline Aviation (PAK FA T-50 aircraft). The UEC is part of the Rostec state holding company.
Gas generators had to be prepared for the testing, along with the demonstrator engine.
What is the PAK FA flying with now?
The PAK FA is currently using a first stage engine, a modernized Al-41.
Pavel Bulat, avionics specialist and head of the Kupol Group of Companies, said the AI-41 is an updated version of the engines used for the Su-27, Su-30 and other models in that series.
“The engine for the T-50 was significantly upgraded from the original models, incorporating the latest control system, compressors, and so on. Nevertheless, it still falls short of the 5th generation model, and is very noticeable on radar screens,” said the expert.
The new second-stage engine is one of the most advanced in the world, said Bulat. It enables the T-50 to accelerate to supersonic speed, and maintain that velocity throughout the flight, without using afterburners.
“The speed will be as much as Mach 1.6 (about 1,200 mph), depending on the terrain over which the flight is taking place. The engine will also significantly improve the stealth properties of the PAK FA, thanks to the use of new composite materials,” said Bulat.
The designers expect to start testing the new engine on fighter jets in 2018, and for the motor to be fully integrated in 2020.
“In addition to the engine, the radar station also needs to be modified, and engineers need to remove the last deficiencies in the airframe concept, which, among all the aircraft flying today, is the most modern in the world,” said the analyst.
New fighter's weapons
30-mm cannon

The firing unit comprises of the 9-A1-4071K, one of the lightest cannon in its class, which is designed to destroy armoured vehicles or armoured enemy targets. During one flight, the pilot can shoot 150 rounds from the 30-mm cannon.The new weapon is a modified single-barrel GSh-301 aircraft cannon, used in Russian fighters and bombers.
Aircraft bombs

The future T-50 5th generation fighter will also carry high-explosive and volume-detonating bombs, Sergey Rusakov, General Director of the Techmash Group, stated on September 22.
Rusakov said they were considering high-explosive incendiary OFZAB-500 aviation bombs for the PAK FA, and volume-detonating ODAB-500PMV, currently being used in Russian operations in Syria. Engineers have already produced a set of warheads for future tests.
Operational principle and the use of bombs in Syria
According to the rearmament programme, Russian Armed Forces will receive a batch of 12 T-50 fighters before the end of this year. A new contract for the supply of 5th generation aircraft will be discussed with the Ministry of Defence at the end of 2016, after which the War Department will decide how many new aircraft are needed.

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