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Author Topic: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II  (Read 443289 times)

Offline Steven

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1140 on: March 08, 2019, 02:24:07 pm »
I read through the article via Google translate, and it appears that Marchukov mentioned variable cycle technology but is he stating that it's being implemented for Product 30? This is the first time I've heard suggestions of variable cycle for this particular engine. Perhaps Russian speaking members can clarify?

Interestingly, it seems like he also considers 3-stream adaptive engines to be the next generation in fighter aircraft propulsion, like what GE and P&W are doing with the XA100 and XA101 and NGAD/PCA powerplants.
« Last Edit: March 10, 2019, 10:28:55 am by Steven »
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Offline GARGEAN

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1141 on: March 09, 2019, 12:11:32 am »
Han, he's talking about future developments, not about Izd.30.

Offline flateric

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1142 on: March 09, 2019, 04:46:06 am »
I read through the article via Google translate, and it appears that Marchukov mentioned variable cycle technology but is he stating that it's being implemented for Product 30?
once more, read only text inside quotes. he is talking of VC as a future development, not implemented in Izd.30
« Last Edit: March 09, 2019, 04:48:54 am by flateric »
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Offline Austin

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1143 on: March 10, 2019, 12:00:32 am »
What new technology would Izd 30 have if not VC ,  Mearly increasing T:W ratio from 10 to 11 from 117 which has T/W ratio of more than 10 wont be any major improvement in terms of technology , They have reduced the number of stages , He says fuel consumption is the same.

117 can supercruise the T-50 , Izd would just make it SC a bit faster.

Let see from earlier interview and even this there was mention of VCE so I am hopeful Izd would have VCE

Offline flateric

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1144 on: March 10, 2019, 03:44:25 am »
Again, you are mixing wishful thinking with reality. Marchukov says NOTHING about variable cycle on Izd.30 in his interview. He only mentions it as of future development for a next gen of engines.
You are remembering me guy from the other forum who thinks that every patent application made by PAK FA contractor means that it's already used on T-50.
« Last Edit: March 10, 2019, 03:46:49 am by flateric »
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Offline Austin

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1145 on: March 10, 2019, 04:16:13 am »
What other engine is there under works to even talk about future VCE ?

Time will tell let’s see

Offline bring_it_on

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1146 on: March 10, 2019, 08:52:40 am »
Why would the Russians not have plans for address future propulsion needs? Is the Izd 30 the end of the road for propulsion advances for their aerospace industry? I think not. There will always be future and forward looking technology development, sometimes directly to support a defined need, and other times open ended, to support technology advances because future programs will always need access to highly capable engines.
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Offline Steven

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1147 on: March 10, 2019, 10:30:44 am »
Thrust figures aren’t the only signs of technological improvement. There are plenty of other metrics such as MTBO, SFC, TIT, OPR, etc. In any case, you shouldn’t expect a design freeze based on whatever latest technology is being talked about.

I read through the article via Google translate, and it appears that Marchukov mentioned variable cycle technology but is he stating that it's being implemented for Product 30?
once more, read only text inside quotes. he is talking of VC as a future development, not implemented in Izd.30

Thank you for the clarification.

Performance metrics about the Product 30 are difficult to come by for understandable reasons. The only numbers I’ve read is from PiBu’s article in Air International where he quoted a Saturn official (I believe Ilya Fedorov) saying that the engine will be 16-17% “more effective”, though what metric that refers to is unclear.
« Last Edit: March 14, 2019, 09:19:27 am by Steven »
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Offline flateric

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1148 on: March 10, 2019, 01:05:05 pm »
Why would the Russians not have plans for address future propulsion needs? Is the Izd 30 the end of the road for propulsion advances for their aerospace industry? I think not.
Of course not. Saturn has many things in the works. They were showing several future engine concepts in presentation at last Aero-Engine Manufacturing Forum. One was looking pretty much like RR concept for Team Tempest with these bypass tubes. Don't forget of their RDE research. With a money they surely able to 'cut the corners', without them...
« Last Edit: March 10, 2019, 01:07:48 pm by flateric »
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Offline Austin

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1149 on: March 14, 2019, 07:10:19 am »
Su-57 fighter: TsAGI innovative solutions

http://www.tsagi.ru/pressroom/news/4264/



Quote
In early 2010, for the first time, a prototype of the T-50 aircraft took off. The Russian fifth-generation multifunctional fighter, developed by the P.O. Sukhoi in the framework of the project "PAK FA" (Perspective Aviation Complex of Frontal Aviation), now bears the name of Su-57.

In the Central Aero-Hydrodynamic Institute named after professor N.Е. Zhukovsky new aircraft began to be developed in the framework of research work in 1999. The specialists of the leading center of aviation science, together with the Sukhoi Design Bureau, were to create a fighter with a number of unique features that have properties whose implementation is mutually contradictory. It was necessary to develop an aviation complex with the functions of a fighter, interceptor and strike aircraft. High combat effectiveness of the PAK FA should be provided by technical solutions in the field of aerodynamic layout, stability and controllability, control systems, power plant, radar and infrared visibility, avionics and armament.

Together with the staff of the Sukhoi Design Bureau, the TsAGI scientists developed an aerodynamic shape of the aircraft that meets the requirements of the fifth generation fighter. An unobtrusive air intake, which has no world analogues, was created, which ensures stable engine operation in all flight modes. The specialists of the institute have worked out control systems for a maneuverable aircraft that is statically unstable in the lateral and longitudinal control channels. Ensuring the durability of the airframe design with the extensive use of new and composite materials is another challenging task that TsAGI scientists have successfully solved. As a result, the requirements were met for the weight parameters of the design of the aviation complex, the weight perfection of the aircraft. In a short time, work was carried out in the areas of security from flutter,

Specialists of the Institute conducted a unique design calculation of the layout of the fighter. In the wind tunnels of TsAGI, 28 different aircraft models were investigated; The total number of tests exceeded 32 thousand. Successfully performed tests of new materials and structural elements.


After the first flight of the prototype, studies on the finalization of the flight vehicle continued. So, over the next nine years, the TsAGI refined the aerodynamic characteristics of the complex, compared it with the results of flight tests, practiced the safety of using new aircraft weapons. In the process of preparing and conducting flight tests, frequency tests of all the aircraft designed for this purpose were conducted.


Press service of FSUE TsAGI
(495) 556-40-32
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press@tsagi.ru

Offline raptor82

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1150 on: March 15, 2019, 11:06:35 pm »
The “early” T-50 configuration wind-tunnel model ? ::)

Offline QuadroFX

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Re: Sukhoi T-50 Su-50 PAK FA - flight testing and development Part II
« Reply #1151 on: March 19, 2019, 09:47:55 am »
Where is it from?

Offline flateric

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« Last Edit: March 19, 2019, 12:55:05 pm by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works