Shenyang FC-31 / J-31 Fighter Demonstrator

sunnymaxi

Captain
Registered Member
I think the J-31 platform would be better for future development than the J-20, there can be an EW focused version, and it could be possible to develop a BIGGER version, scaled up and designed for dual WS-15 engines, to take over the J-16 and J-16D roles, let’s call it a hypothetical J-36.
this make no sense at all bro ..

WS-19 is the final engine of J-35/J-31.. WS-19 is as good as WS-15.
 

kentchang

Junior Member
Registered Member
I think the J-31 platform would be better for future development than the J-20, there can be an EW focused version, and it could be possible to develop a BIGGER version, scaled up and designed for dual WS-15 engines, to take over the J-16 and J-16D roles, let’s call it a hypothetical J-36.

Developing J-36 from J-31 is going to be less expensive and time consuming than developing it from scratch, perhaps this has been planned from the start.

J-20, I think should be developed into an interceptor, and China can have a full range of 5th Gens, for example:
  • J-20 Air superiority, Medium-High Altitude
  • J-20A Air superiority, High Altitude
  • J-20B Interceptor
  • ——
  • J-31 Medium Multirole
  • J-35 Medium Multirole Carrier
  • J-36 Heavy Multirole
  • ——
  • J-xx Light S/VTOL
These classifications are so World War II'ish. The RN Type 45 found out why it is not such a good idea to specialize so much.

You would love the 18th and 19th Century even more as they had single-task soldiers like archers, lancers, grenadiers, sappers, and cavalry.
 

minime

Junior Member
Registered Member
And even more a development from J-36 as a heavy fighter based on he J-35 makes simply no sense at all as long as it still uses the same airframe and only medium thrust engines.
Sorry, but this makes no sense at all.
In a nutshell, Andy1974 just doesn't like how J-20 looks still consider J-20 a high-speed high altitude interceptor kind of thing not fit for multi-role like ground attack.
Thus the scale up J-35 to J-36 using dual WS-15 engine non-sense.
 

Andy1974

Senior Member
Registered Member
this make no sense at all bro ..

WS-19 is the final engine of J-35/J-31.. WS-19 is as good as WS-15.
I thought WS-15 is bigger and more powerful than WS-19? I thought WS-13 is the equivalent of WS-19.

My hypothetical J-36 is a physically larger J-31 powered by dual WS-15, its mission is to replace the J-16. It’s effectively a fifth generation flanker based on an upscaled J-31 airframe. My post clearly stated this.

And even more a development from J-36 as a heavy fighter based on he J-35 makes simply no sense at all as long as it still uses the same airframe and only medium thrust engines.
You have missed and misunderstood me again, I said J-31 as the hypothetical base model for J-36, I’m not sure why it is so non-sensical. Again, I am proposing a bigger airframe and larger engines, but using the same processes and materials as J-31.

The hypothetical interceptor is simply a J-20A optimized for speed and altitude rather than air superiority, sorry I shouldn’t have called it a J-20B, call it J-20I for the sake of discussion.
These classifications are so World War II'ish. The RN Type 45 found out why it is not such a good idea to specialize so much.

You would love the 18th and 19th Century even more as they had single-task soldiers like archers, lancers, grenadiers, sappers, and cavalry.
When we talk about the PLAN we don’t talk about multi role, we talk about specialist platforms doing specialist jobs and no one has a problem with that. Why would the PLAAF not specialize while the PLAN should?
 
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Andy1974

Senior Member
Registered Member
In a nutshell, Andy1974 just doesn't like how J-20 looks still consider J-20 a high-speed high altitude interceptor kind of thing not fit for multi-role like ground attack.
Thus the scale up J-35 to J-36 using dual WS-15 engine non-sense.
Again, I said J-31 to J-36, I am not talking about the J-35. And I very much do like the J-20. Perhaps you could explain why it’s such a stupid idea?
 

Michaelsinodef

Senior Member
Registered Member
Again, I said J-31 to J-36, I am not talking about the J-35. And I very much do like the J-20. Perhaps you could explain why it’s such a stupid idea?
Nothing much is gained by scaling up the J-31 from using WS-19 to using WS-15.

The internal weapon bay is same length as J-20 but just not as wide (J-20 will fit 6 of the upgraded PL-15/folded fin version, J-31 might be at 5 of those).
 

Andy1974

Senior Member
Registered Member
Nothing much is gained by scaling up the J-31 from using WS-19 to using WS-15.

The internal weapon bay is same length as J-20 but just not as wide (J-20 will fit 6 of the upgraded PL-15/folded fin version, J-31 might be at 5 of those).
What do you reckon the power of WS-19 and WS-15 might be?
 

Deino

Lieutenant General
Staff member
Super Moderator
Registered Member
I thought WS-15 is bigger and more powerful than WS-19? I thought WS-13 is the equivalent of WS-19.

My hypothetical J-36 is a physically larger J-31 powered by dual WS-15, its mission is to replace the J-16. It’s effectively a fifth generation flanker based on an upscaled J-31 airframe. My post clearly stated this.


You have missed and misunderstood me again, I said J-31 as the hypothetical base model for J-36, I’m not sure why it is so non-sensical. Again, I am proposing a bigger airframe and larger engines, but using the same processes and materials as J-31.

The hypothetical interceptor is simply a J-20A optimized for speed and altitude rather than air superiority, sorry I shouldn’t have called it a J-20B, call it J-20I for the sake of discussion.

When we talk about the PLAN we don’t talk about multi role, we talk about specialist platforms doing specialist jobs and no one has a problem with that. Why would the PLAAF not specialize while the PLAN should?


He meant, technically WS-19 is on par with the WS-15, not thrust-wise and again! You do not simply scale-up a J-35 to fit two WS-15! Why should anyone ... this type is already available and called J-20!
 

Andy1974

Senior Member
Registered Member
He meant, technically WS-19 is on par with the WS-15, not thrust-wise and again! You do not simply scale-up a J-35 to fit two WS-15! Why should anyone ... this type is already available and called J-20!
For the THIRD time, J-31. What is your problem with this reading comprehension? Are you willfully misconstruing me?

Yes I am suggesting that the J-20A and an upscaled J-31 use WS-15 engines! I have spelled it out clearly several times, I can’t help you understand my point any more than this!

It has been 13 years since the J-20, the J-31 is more modern and is probably superior, using it as the base platform for new aircraft is sensible, and I am still waiting for anyone to give a good reason why it is not.

Please don’t mention J-35 as part of this discussion going forward, it is not relevant.
 
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Michaelsinodef

Senior Member
Registered Member
For the THIRD time, J-31. What is your problem with this reading comprehension? Are you willfully misconstruing me?

Yes I am suggesting that the J-20A and an upscaled J-31 use WS-15 engines! I have spelled it out clearly several times, I can’t help you understand my point any more than this!

It has been 13 years since the J-20, the J-31 is more modern and is probably superior, using it as the base platform for new aircraft is sensible, and I am still waiting for anyone to give a good reason why it is not.

Please don’t mention J-35 as part of this discussion going forward, it is not relevant.
The J-20 has been upgraded though.

It's unlikely that the J-35 or a J-31 would actually be that much better if at all.
 
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