China's V/STOL studies, concepts & considerations

[Tomboy]

Are you sure about the length of the model and/or the scale? Because a model that is 20 centimeter long in a 1/9 scale would mean that the real thing is only 180 centimeters long. Or do you mean 1/

Missed a 0

 

[Gloire_bb]

Also, Captain mentioned a 20cm long model that is said to be 1/90 scale, so if this is somewhat representative of the actual thing it might be roughly J-35 sized.

IMO, they'll need a crazy large engine for this

Tbf, Yak-141 was exactly 18m long. F-35 is more of an exception with very strict length restriction.

 

[mack8]

So the VTOL fighter noise intensifies. Just taking the opportunity to repost this from Huitong's from a while ago. Will China build the first 6th generation VTOL fighter? And will it be a present from this year's Santa?

 

[ACuriousPLAFan]

Also, Captain mentioned a 20cm long model that is said to be 1/90 scale, so if this is somewhat representative of the actual thing it might be roughly J-35 sized.

IMO, they'll need a crazy large engine for this

That, or whether having the two WS-21/19 engines that are of the SVTOL variant with shaft-driven liftfans like how the F-135-PW-600's ILFPS works. That way, they won't need to develop a brand-new, F135-PW-600-class engine just for SVTOL operations, if they do intend on getting the SVTOL warplane up into the air as soon as possible.

On one hand, the technological mastery of engine thrust controls requied for a two-engine SVTOL aircaft would be exceptionally high, and that the loss of one engine would mean no more vertical landing for the aircraft. On the other hand, the latter would also mean avoiding the loss of the entire aircraft (alongside higher chance of survival for the pilot).

 

[Deino]

...

PLAN has been looking into STOVL concept for a while now, earliest studies from the navy that they could find is something similar to X-36 but with a liftfan in the back. Later studies from 611 showed some kind of canarded aircraft, though the recent patent(by the time of post) is likely a dud because the amount of system commonality is too low.

Basic timeline is first, navy studies dating back for the past decade, then Shenyang AECC's high thrust turbofan study with a prototype completed recently, 601's tail single piece prototype for a single engined fighter with ruddervators, verification of 611's canarded proposal, 601's RC model that looked like a F-35 under going testflight, more navy studies and Shenyang AECC's liftfan. Seems like this project is meant to be a "fast and cheap" project not too unsimilar to Z-21 project.

Just an idea esp. in regard to the above posted image! Could this be?

 

[sunnymaxi]

That, or whether having the two WS-21/19 engines that are of the SVTOL variant with shaft-driven liftfans like how the F-135-PW-600's ILFPS works. That way, they won't need to develop a brand-new, F135-PW-600-class engine just for SVTOL operations, if they do intend on getting the SVTOL warplane up into the air as soon as possible.

On one hand, the technological mastery of engine thrust controls requied for a two-engine SVTOL aircaft would be exceptionally high, and that the loss of one engine would mean no more vertical landing for the aircraft. On the other hand, the latter would also mean avoiding the loss of the entire aircraft (alongside higher chance of survival for the pilot).

they have already F-135-600 equivalent machine.. remember that research paper leaked. you made a comparison chart between this engine and F-135-600.

The engine for the STOVL prototype, it seems. 2200°K TiT, BPR of 0.55, OPR of 30, etc.
View attachment 155971

 

[ACuriousPLAFan]

So the VTOL fighter noise intensifies. Just taking the opportunity to repost this from Huitong's from a while ago. Will China build the first 6th generation VTOL fighter? And will it be a present from this year's Santa?View attachment 165056

Isn't this the model of the alleged rejected design for the J-36/J-XDS?

Also, the position of the IWB indicated by the model is located directly below where the shaft-driven liftfan is supposed to be. I don't quite see how this design would allow SVTOL operations.

 

[Tomboy]

they have already F-135-600 equivalent machine.. remember that research paper leaked. you made a comparison chart between this engine and F-135-600.

They are going to need a bigger engine than that IMO, J-35 has 240kN total thrust.

 

[mack8]

@ACuriousPLAFan If so then what are the big bumps under the canard? To me they look like exhausts. Anyway Huitong has it under VTOL category so that's pretty definite what it is. I'm curious about the dorsal intake, does it have two engines a la BAC Lightning or ...?

 

[ACuriousPLAFan]

they have already F-135-600 equivalent machine.. remember that research paper leaked. you made a comparison chart between this engine and F-135-600.

Just a small note that the figures are not from a leaked research paper, but a patent document.