Russia’s Su-57 fifth generation fighter jet performed in 16 test flights with its 2nd stage engine “Product 30” (Izdeliye-30), Rostec Aviation Cluster Industrial Director Anatoly Serdyukov said on December 6th.

“Currently, the engineering bench tests of the advanced engine continue and the item is being tested on a flying laboratory. In October, another flight was performed to check the item’s characteristics in various flight modes, specifically, the operation of the vectoring jet nozzle and the oil system at negative overloads. Overall, 16 flights on a flying laboratory were performed,” Serdyukov reported.

The first flight of the Su-57 with the Product 30 engine was realized in December 2017th.

The engine will get a fully electronic automatic control system and ensure the fighter’s super-maneuverability, thrust-to-weight ratio, stealth characteristics and the ability to perform cruising flights at supersonic speed.

Currently, the Su-57 flies with an AL-41F1 engine (Product 117), which are typically equipped on Su-35 fighter jets.

The Su-57 fighter belongs to the conditional fifth generation, which indicates the presence of a number of characteristic requirements. One of the main requirements is the provision of cruising supersonic speed, including without the use of afterburners.

Existing engines (such as the AL-41F1) are not capable of providing such characteristics, and therefore the fighter jet requires a completely new engine.

The engine of the second stage for the Su-57 fighter (“Product 30”) was developed at the Lyulki Design Bureau under the direction of Evgeny Marchukov and in collaboration with other large Russian engine-building companies.

According to known data, “Product 30” is a dual-circuit turbojet engine with afterburner. At the level of some basic ideas, it has similarities with older engines of the AL-31 and AL-41 families, but all of its units were developed anew and using modern technology.

The result of this was a noticeable increase in all the basic characteristics, allowing to attribute “Product 30” to the next generation of turbofan engines.

The engine has a typical architecture for its class with multi-stage high and low pressure compressors, a combustion chamber and multi-stage turbines.

Behind the turbines are an afterburner and a nozzle with TVC (thrust vector control).

The compressor provides compression of the incoming air with a degree of 6.7, providing air flow up to 20-23 kg/s. The combustion chamber is equipped with a plasma ignition system installed directly on the nozzles.

Such tools ignite the fuel immediately after it enters the combustion chamber. Due to this, the optimal combustion mode is maintained, and the so-called flare – improper combustion of fuel accumulated in the engine. The temperature of the gases in front of the turbine ranges from 1950 to 2100 ° K. For comparison, in the serial AL-31F engine, this parameter does not exceed 1700 ° K.

According to open data, the maximum thrust of the Product 30 engine reaches 11,000 kgf, afterburning – 18,000 kgf. For comparison, the engine of the first stage AL-41F1 has a thrust of 9500 and 15000 kgf, respectively. Thus, the Su-57 aircraft, even with a maximum take-off mass exceeding 35 tons, will have a thrust ratio of more than one. With normal take-off weight, this parameter will reach 1.15-1.2.

It is to replace the AL-41F1 engine when it enters serial production. The “first stage” engine has been in serial production since 2018. The Product 30 engine is expected to enter serial production sometime in 2020.

About Southfront
South Front: Analysis & Intelligence (SF) is a public analytical project maintained by an independent team of experts from four corners of the earth. SF focuses on international relations and crises working through a number of media platforms. They provide military operations analysis and other important data where crisis points affect tensions between countries and nations. They dig out truth barely covered by states concerned and their mainstream media. SF does not receive any funding from corporations or governments. They are supported by reader donations. *All posts on behalf of South Front are made by Gordon Duff

DISCLOSURES: All content herein is owned by author exclusively.  Expressed opinions are NOT necessarily the views of VT, authors, affiliates, advertisers, sponsors, partners or technicians. Some content may be satirical in nature. All images within are full responsibility of author and NOT VT.

About VT - Read Full Policy Notice - Comment Policy

4 COMMENTS

  1. Meanwhile the great F-35 continues to stumble to the tune of hundreds of billions of dollars to the cost of the American taxpayers.
    The Boeing 737 MAX8 remains grounded. The 787 Dream Liner has major quality issues and new aircraft carriers don’t function.
    America’s infrastructure is crumbling. It’s cities on the west coast are now reeking, rat infested garbage dumps, waiting for major outbreaks of Typhus or even the plague that will kill off most of the homeless populations and many of those who are not homeless. Americans are addicted to opioids, meth and alcohol. College students are facing a life of unpayable debt with no job prospects.
    Yup……..America is headed for a crash landing.

  2. We are still far ahead of China in the field of engine building. Metal science in Russia is very high. New alloys and more. A large turbine blade factory has recently been built and commissioned. Experts know how incredibly complex this product is. Nevertheless, as soon as China goes through its own path of creating its own school of engine building, they will begin to amaze the world. They have all the prerequisites. Although our Russian young mathematicians (they are 14-17 years old) have recently returned from China. They won the prestigious mathematical competition by a wide margin from the best Chinese mathematicians. This makes me happy. While we take away all the medals in competitions in mathematics, programming and other exact sciences. Let’s see what will happen next.

    • Do you know what super computers are? I don’t see Russia have too many, if any, from countries with super computers. China is the leader.

    • Andy, congratulations. You have some very bright young Russians who will no doubt contribute greatly to your country.
      The other fact, sad as it is, American school children are being deliberately dumbed down to the point of near idiocy. The only thing being taught in America’s public schools if political correctness and gender fluidity.(binary intersectionalism) Even worse they are allowing cross dressing homosexuals to read to little children. It’s sick and disgusting. It’s all part of the plan to take America down into the gutter.
      America is doomed.
      Russia will rise and the west has failed.