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Is the Su-57 project effectively toast?

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posted on Feb, 12 2018 @ 06:04 PM
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a reply to: Blackfinger

If they followed what we do, the Russians would have already tested the engine on the ground before integrating it with the Su-57.

It's very clear that something went wrong. IMO.




posted on Feb, 12 2018 @ 06:12 PM
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Im thinking performance issues..Its not putting out the power its supposed to.



posted on Feb, 12 2018 @ 06:16 PM
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a reply to: Blackfinger

Probably. That's often the case, but they ought to have seen that on the ground first though.



posted on Feb, 12 2018 @ 06:19 PM
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a reply to: anzha
Sometimes yes.Computer modelling can tell you so much and ground runs are out of the aircraft.When the plane is in the air variables such as intake designs and airframe inconsistencies rear there heads..Drag and weight is the evil of thrust and lift.



posted on Feb, 14 2018 @ 10:15 PM
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a reply to: Blackfinger

alert5.com...

Indians want 126 F-35As.

Given the FGFA was projected to have a $100 million per bird cost and India already wants to ditch the Su-57, I'd say the Su-57 may be in dire trouble.



posted on Feb, 14 2018 @ 10:20 PM
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a reply to: anzha

But.....but.....but.....Russia or something.



posted on Feb, 14 2018 @ 10:21 PM
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a reply to: Zaphod58

But but but the F-35A is cheaper...



posted on Feb, 15 2018 @ 01:59 AM
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....and works



posted on Feb, 15 2018 @ 02:30 AM
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originally posted by: anzha
a reply to: Blackfinger

If they followed what we do, the Russians would have already tested the engine on the ground before integrating it with the Su-57.

It's very clear that something went wrong. IMO.


What gives you the impression they never ground tested the engine? It's been ground tested for years. Something's you can only really learn in the air. Duct airflow is still largely voodoo, and it's difficult to tell how the combination of intake and engine is going to react to adverse airflow (yaw/aoa).




Given the FGFA was projected to have a $100 million per bird cost and India already wants to ditch the Su-57, I'd say the Su-57 may be in dire trouble.


It was in trouble already. They are massively over budget and behind schedule. Then after they got India to pile in a little more capital they suddenly asked for another 7B to continue the arrangement. India understandably is a bit put off. That doesn't mean it's dead. The whole program is only 17 years old. Took ten years to go from program start to a preproduction model. They are still working out the kinks.
Compare that to the F-35 whose origin dates from CALF/JAST studies started in 1992! When CALF and JAST combined three years later to form JSF, LM put out the X-35 as a demonstrator in eight years from the paper study genesis. Another 6 years to get a preproduction in the air. Another nine, ten (and a not even done yet) years to service introduction.

So it's hardly surprising the Russians aren't in full scale production. They're well ahead of the curve compared to the F-35 though. The real questions are can they afford to keep up development and at what pace.



posted on Feb, 15 2018 @ 04:21 AM
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a reply to: RadioRobert

Regarding timelines, I don't think including CALF/JAST is fair, since we are unsure of the lineage of the Su-57. And of course, thinking about 5th generation aircraft has its roots, both american and russian, back in the 1980s.

I do like the incremental approach however, much in the Su-57 is from the Su-35S. Faster iterations are a good thing. Imagine if we had Block III Super Hornet 10 years ago, with the initial F-35 simply using its avionics (and perhaps engines even though I know this isn't possible due to STOVL and/or other wants for a single engine).
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