China Flanker Thread II

[stannislas]

I think it's easier to make intakes DSI rather than install radar blockers. Because the airframe was designed in Russia, it is not easy to modify in significant way. But DSI is pretty easy to modify. They modified intakes of JF-17 prototype and J-10 from traditional to DSI.

not really, you may have underestimate the work for redesign an intake...

with J-20 today, I don't think Chinese has the motivate to develop another flanker++

 

[Chavez]

The radar antenna has optical reflector similiar to 64n6 Big Bird detection radar use in s300 sam

 

[Sczepan]

Bu these first batches went all and only (at least by my information) the the 9th AR at Wuhu and the 6th at Suixi

so they got the first "Made in China" planes, btw.: part of this contract (1996) was delivery of 28 Su-27 UBK, last one in 2002

 

[Gloire_bb]

I have a question. Does anyone know why they didn't redesign Flanker's intakes from traditional to DSI?

Well, for starters, loss of intake supersonic performance will probably be quite substantial (Vmax alone will probably go down from M=2/2.35 to ~M=1.8).
Furthermore, Flankers are large, heavy and expensive enough to not bother with large part of potential benefits. It's one thing to win kilograms on 8t airframe, and another thing to do in on an18t one. Especially when we're talking about heavier twin seaters.

 

[Schwerter_]

I think it's easier to make intakes DSI rather than install radar blockers. Because the airframe was designed in Russia, it is not easy to modify in significant way. But DSI is pretty easy to modify. They modified intakes of JF-17 prototype and J-10 from traditional to DSI.

JF-17's design change was made during the prototype phase, while J-10B/C has a almost entirely redesigned frontal fuselage as well as a change in intake. Plus, while adding radar blockers may necessitate modifications of the airframe, there's absolutely no reason to assume that changing the entire intake design will not have the same--if not more--degree of change in the airframe needed.

Plus, all this is without any mention of the potential wind tunnel testig and aerodynamic redesigns due to the change of the external shape of the intakes, so all in all switching to DSI at this point imo is expensive, time consuming and has very little benefit.

 

[minusone]

I think it's easier to make intakes DSI rather than install radar blockers. Because the airframe was designed in Russia, it is not easy to modify in significant way. But DSI is pretty easy to modify. They modified intakes of JF-17 prototype and J-10 from traditional to DSI.

there's only 4 commissioned fighter jet with DSI intake in this world...3 of them belongs to China, 1 USA.

easy?

 

[minusone]

because shenfei sucks at revamp

 

[lcloo]

Are this radar blocker inside the air intake duct?

 

[siegecrossbow]

Are this radar blocker inside the air intake duct?

View attachment 79997

Don't think so.

 

[lcloo]

I am still not sure. This is how SU-57 do it.