I think Piotr got suspended by the moderators.
He was online here at the SDF ??? ... that is new to me !
Or do You mean another "Piotr" ??? I mean Piotr Butowski ...
Deino
Chinese purchase of Su-35
- Thread starter flyzies
- Start date
He was online here at the SDF ??? ... that is new to me !
Or do You mean another "Piotr" ??? I mean Piotr Butowski ...
Deino
Equation
Lieutenant General
Yes..I meant "Piotr". But I do agreed with you on that article to take it with a grain of salt.
b787
Captain
i do not believe you, i believe the manufacturer, have humility and accept you were wrong
b787
Captain
The Thirty-Five offers a feature set and performance making it very nearly a Fifth-Generation fighter jet. The Su-35S falls short on only two requirements: lack of stealth technology and APAR (active phased array radar).
officially only
A Bar Brother
Junior Member
Did you read the link I posted? It wasn't my opinion. If you think Victor Chepkin is wrong and some newbie recruit who manages the website is right, then be my guest.
A Bar Brother
Junior Member
From what has been claimed, the Su-35 can supercruise up to mach 1.2 and was still accelerating. However, while the aircraft can supercruise, we don't know how long it takes to achieve such speeds and how long it can maintain such speeds. The engine was not designed for supercruise, it is just a coincidence that the airframe drag is low enough to achieve supercruise, as is the case with the Typhoon and Rafale. The Su-27 in particular could always get out of afterburner and still cruise at supersonic speeds.
Just to make it more clear, let me point out some differences between the 117 and 117S.
The 117S is a modified AL-31F. Both engines have 13 stages, 4 stage LPC and 9 stage HPC. The inlet diameter was increased from 905 mm to 924 mm. The dry weight is 1570 Kg.
The 117 is also a modified AL-31, but has a redesigned core. It has 10 stages, 3 stage LPC and 7 stage HPC. The inlet diameter was increased in comparison to the 117S's 924 mm, though the actual value is unknown. The dry weight was reduced by 150 Kg to 1420 kg. This is the supercruise capable engine.
That's why the 117S is an export grade engine while the 117 is not.
Just to make it more clear, let me point out some differences between the 117 and 117S.
The 117S is a modified AL-31F. Both engines have 13 stages, 4 stage LPC and 9 stage HPC. The inlet diameter was increased from 905 mm to 924 mm. The dry weight is 1570 Kg.
The 117 is also a modified AL-31, but has a redesigned core. It has 10 stages, 3 stage LPC and 7 stage HPC. The inlet diameter was increased in comparison to the 117S's 924 mm, though the actual value is unknown. The dry weight was reduced by 150 Kg to 1420 kg. This is the supercruise capable engine.
That's why the 117S is an export grade engine while the 117 is not.
A Bar Brother
Junior Member
It appears I cannot edit posts. I made a small mistake with the weights in the above post. I apologize for that.
The 117S weighs 1520 Kg and the 117 weighs 1370 Kg.
The 117S weighs 1520 Kg and the 117 weighs 1370 Kg.
b787
Captain
that is your opinion
this is official
25/02/2014
The Air Force Su-35s are delivered with the engines of production UMPO
All Su-35s, received in February on arms of the Air Forces of Russia are equipped with engines produced by JSC "Ufa Engine Industrial Association". 24 AL-41F-1C (117C) for 12 4 ++ generation fighter aircraft delivered to the Ministry of Defence of the Russian Federation by OJSC "Company" Sukhoi "in the framework of the state defense order in 2013.
- AL-41F-1S is a deep modernization of the AL-31F engine, which is commercially available from our company for fighters Su-27 - said the managing director Alexander UMPO Artukhov. - In future articles 117C will form the basis of the production program of association.
Developer products AL-41F-1S is a branch UMPO "OKB. The audit ". These engines are different from the AL-31F increased thrust, great TBO, reduced fuel consumption, controlled thrust vector and allow the aircraft to develop a supersonic speed without afterburner, which is one of the main requirements for the fighter and the fifth generation aircraft.
117C
Development -JSC "" Saturn ".
Serial production - JSC "Ufa Engine Industrial Association".
"The product 117C" - high-turbojet engine with afterburner and thrust vector control for a fighter generation "4+" Su-35
thank you B787, I knew that I had read that it could supercruise, and the precise figure was Mach 1.2, now the 117 now doubt hopes to up that number, just kinda the way Russian ends up being translated sometimes, most especially in advertising literature put out by the factory? that does help, and it does clarify that the 117S is still a very capable powerplant.
b787
Captain
the precise figure is not available
Almost all of the patents related to the production of the main products of the Ufa Engine Industrial Association - AL series gas turbine engines. These include the latest Aircraft Bypass Turbofan engine AL-41F-1S with afterburner and thrust vector control. With this engine the aircraft is capable of developing supersonic speed without afterburner.
It will be used in a reactive maneuverable multipurpose fighter Su-35s, which belongs to a generation "4 ++". He is capable of speeds up to 2.4 thousand. Km / h and make non-stop flights to a distance of 3.6 thousand. Km. Especially for a Scientific Research Institute of Instrument them. VV Tikhomirov (NIIP), included in KRET, developed RCS "Irbis". Production systems involved in Ryazan State Instrument Plant, also a KRET.