J-20 5th Generation Fighter VII


AndrewS

Captain
Registered Member
I heard rumors Chinese are developing Jassm like a missile and also LRASM. But currently, probably it's not a priority.
Yes, China is probably developing JASSM now. It's the logical thing to do.

There are so many fixed land targets within the 1st Island Chain.
These would be within reach of JASSM launched from the Chinese mainland or from bombers.
And the vast majority of targets would not be covered by ground-based air defence, because the radar/infrared/visual horizon is only 30km.

So stealthy Chinese JASSMs could slip through undetected all the way to their targets, particularly since the skies overhead are going to be contested airspace.

Previously JASSMs weren't worth developing, because China still needed to secure air/maritime superiority over its coastal cities and waters.
But now they are looking firmly at power projection towards the 1st and 2nd Island Chains.

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But the rationale for an LRASM version doesn't work as well, because it would need to add expensive guidance systems AND have to head directly towards the SAM systems of a defending warship.

Once the missiles are detected at the radar/infrared/visual horizon, LRASMs are slow, so the defending warship should have enough time to fire multiple defensive SAMs salvoes.

Anyway, back on topic.
 
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stannislas

Junior Member
Registered Member
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Article suspected to be studies on post stall maneuvers with tvc for J-20.
Really nice paper, great read, thank you

but this ariticle may be more suited under other thread? Of course it related to j-20, but it use j-10 TVC as a study case for the whole time, and discuss about in general how to modeling and design the TVC in fighter jet as a whole
 

siegecrossbow

Brigadier
Staff member
Super Moderator
  • Thread Starter Thread Starter
  • #344
Really nice paper, great read, thank you

but this ariticle may be more suited under other thread? Of course it related to j-20, but it use j-10 TVC as a study case for the whole time, and discuss about in general how to modeling and design the TVC in fighter jet as a whole
The diagram they used is that of the J-20, hence the speculation that it is about J-20.
 

KFX

New Member
Registered Member
The diagram they used is that of the J-20, hence the speculation that it is about J-20.
At Zhuhai in 2018 the J-20 was fairly conservative, whereas the star of the show was J-10TVC. My sense is that TVC on J-20 would really help bring around the nose a lot faster in turns. Is it possible that WS-15, which I believe has yet to appear on the J-20, will enter service with TVC?
 

ougoah

Captain
Registered Member
At Zhuhai in 2018 the J-20 was fairly conservative, whereas the star of the show was J-10TVC. My sense is that TVC on J-20 would really help bring around the nose a lot faster in turns. Is it possible that WS-15, which I believe has yet to appear on the J-20, will enter service with TVC?
Given the 2025 WS-15 estimates, I doubt PLAAF will bother with TVC versions of WS-10 for the J-20. As far as we're aware, TVC lowers the effective thrust. Speed and energy management is far more important to something like a J-20's role than maneuverability. WS-15 may or may not incorporate TVC as soon as it reaches service but the intention is believed to eventually give the J-20 TVC with the WS-15 engines. A lower priority than pure thrust performance due to the nature of its utility for PLAAF. FCS incorporating TVC mechanisms similar to what's been decided for WS-10's TVC variant is work that can and should be started asap.
 

latenlazy

Colonel
Given the 2025 WS-15 estimates, I doubt PLAAF will bother with TVC versions of WS-10 for the J-20. As far as we're aware, TVC lowers the effective thrust. Speed and energy management is far more important to something like a J-20's role than maneuverability. WS-15 may or may not incorporate TVC as soon as it reaches service but the intention is believed to eventually give the J-20 TVC with the WS-15 engines. A lower priority than pure thrust performance due to the nature of its utility for PLAAF. FCS incorporating TVC mechanisms similar to what's been decided for WS-10's TVC variant is work that can and should be started asap.
If the J-20 is intended for TVC then they will probably want to at least install WS-10s with TVC on some J-20 test planes to get a head start on the FCS and engine control development rather than wait for a TVC version of the WS-15 to be ready.
 

ougoah

Captain
Registered Member
If the J-20 is intended for TVC then they will probably want to at least install WS-10s with TVC on some J-20 test planes to get a head start on the FCS and engine control development rather than wait for a TVC version of the WS-15 to be ready.
Possibly one for some testing. But what value is there in diminishing the overall available thrust for WS-10 powered J-20s in the interim? They'll do what is necessary to commence FCS work. The models developed can be scaled according to WS-15 specifics. For the purposes of creating a working FCS for TVC enabled J-20, there is no point in introducing WS-10TVC into J-20 units for service. One or two are enough for testing work required to fast track WS-15TVC when it is ready beyond 2025.
 

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