If the J-20 gets TVC I suspect it will be more for high altitude maneuverability, since the effectiveness of control surfaces drop in thinner atmosphere.
Chinese Engine Development
- Thread starter jackbh
- Start date
that makes good sense. It is quite different from the Russian practice and maybe different from F-22 (with one axial TVC) too.
I believe that's actually the primary reason the F-22 has TVC.
Was the report that the wS-20 shaft had broken down false? And what have been the latest rumours about the program?
Ok, if that is the case, J-20 with a 2-axial TVC can provide both vertical and horizontal maneuver while F-22's TVC can only provide vertical maneuver.
Hendrik_2000
Lieutenant General
See Transport thread WS 20 is close to first flight on production model Y 20
szbd
Junior Member
Aerodynamic surfaces have far better efficiency than TVC, so you only need TVC when you have no other way out.
Not in all flight regimes.
szbd
Junior Member
Well, you have to take the TVC in all flight regimes and vertical TVC can work together with aerodynamic surfaces. So it's far more useful than horizontal ones. It's about if it's worthy to have 2-axis TVC not about technology level.
More ITR from any means, including TVC, reduces the NEZ of enemy supermaneuverable missiles. Adding further ITR to the J-20 via TVC means that if it's detected and locked by IR missiles, it should be able to reduce their lethal range by enhancing its ITR maneuverability.
Likewise, a J-20 with TVC can use TVC to control trim, instead of using its canards, which create canard deflection of frontal control surfaces, and long-term, the J-20 can lose its tailfins to become a quasi-6th gen aircraft.
Likewise, a J-20 with TVC can use TVC to control trim, instead of using its canards, which create canard deflection of frontal control surfaces, and long-term, the J-20 can lose its tailfins to become a quasi-6th gen aircraft.