A) You have to study, if you talking about AL-31F, FM, FM1 means all series of AL-31 used to fly planes for a particular period of time.
B) ARRMS varient all varient used and when 1st varied used for particular time then second variant came and then 3rd.
What Chinese did WS-10 and WS-13 engine but didn't use it , then came with WS-10A / WS-13A engine which somewhat used but not successful then they came with WS-13B/WS-10B engine but claim that their original WS-10/WS-13 and Ws-10A/WS-13B successful
Did you used original WS-10 or WS-13 engine? why? because when WS-10 or WS-13 engine failed you said we will develop and use WS-13A and WS-10A and use it , Which of your plane using WS-10/WS-13 engine, with A or B model?
We can made Kaveri is successful , now we will make
kaveri-A and will use A model and after that we will make
Kaveri-B
Our Kaveri engine is equal to your WS-10 , now we are making equal to WS-10A equivalent.
Both AC
Well
INS Vikrant:
laid Down :2009, On
29 December 2011, the completed hull of the carrier was first floated out of its dry dock
INS Vishal: Laid down :
17 July 2012 (started construction)
Well these both are design and build by Indians,
but as per Chinese knowledge , ship can start building first and then later it can designed. 
) oh man i cant stop laughfing at the knowledge of ship designing.
It proves India can Design and Build AC, if india can't deisgn then these both ship will not be present
Update your knowledge, Can you show any Chinese AC design and building with pics?
you know anything about Wet and Dry thrust at all? Fist understand what is wet and Dry thrust, then come arguing. Well 1KN will not matter at all.
Now look the both plane status:
LCA
Empty weight: 6,560 kg
Loaded weight: 9,500 kg
Max. takeoff weight:
13,300 kg
Dry thrust: 53.9 kN (GE engine)
Thrust with afterburner: 85 kN (GE engine)
JF-17:
Empty weight: 6,586 kg
Loaded weight: 9,100 kg
Max. takeoff weight: 12,383 kg
Powerplant: 1 × Klimov RD-93 or WS-13 turbofan (testing phase)
Dry thrust: 49.4 kN[17] / 51.2 kN (11,106 lbf / 11,510 lbf)
Thrust with afterburner: 84.5 kN
Now both Plane is flying in current status, which clearly shows LCA is far superior in then JF-17 in current stage.
Now even blind can understand , If Kaveri with 49.2 KN (Dry) thrust can make it equivalent of your JF-17 as of present. now you argue of 0.2 N (Dry Thrust) well for that ,
LCA is also few Kg lighter then Jf-17.
Now both planes have equivalent wet thrust but LCA can carry more load of 600+ then JF-17 that is because of DRY thrust in combination of Wet thrust.
Regarding Wet Thrust (afterburner ) which required fine turning because After burning required for very short period and afterburner technology utilises by providing more fuel to engines
Afterburning is achieved by injecting additional fuel into the jet pipe downstream of (i.e. after) the turbine. The advantage of afterburning is significantly increased thrust; the disadvantage is its very high fuel consumption and inefficiency, though this is often regarded as acceptable for the short periods during which it is usually used.
Afterburner - Wikipedia, the free encyclopedia
So its not a big deal to fine tune little fuel supply to get afterburner will 80+ KN thrust .it only a matter of fuel supply. All these shows you Chinese don't know anything about technology and always talk bla bla.
AC design and After burning proves that you don't know anything on Ship designing /Engine technology at all.
During this test the Kaveri did well, generating 49.2 KiloNewtons (KN) of “dry thrust”, marginally less than its target of 51 KN. But there was a serious shortfall in “wet thrust”; the
Kaveri generated just 70.4 KN, well short of the targeted 81 KN.
[“Dry thrust” refers to the standard output of an engine in routine flight. “Wet thrust” refers to the enhanced output that is generated when the fighter requires maximum power, e.g. during take-off or in aerial combat.
Termed “lighting the afterburner”, this is achieved by pumping fuel into the engine’s exhaust.]
Now you see the how Wet Thrust can be achieved? US engine give more DRY thrust and but Less Wet thrust because to save fuel but russian engine give low dry thrust but High Wet thrust and uses more fuel also.
Wet thrust can be easily manage and fine tune.
So you Admit that your WS-10 engine failed , thats why you came with Ws-10A engine? right? J-10 was testing for 20 years , wow , longest teasing.
On 2 April 2009, the director of AVIC (Aviation Industry Corporation of China) Lin Zuoming (林左鸣
, stated that there were problems with the q
uality control procedures on the WS-10A production line, meaning the Taihang turbofan was still of unsatisfactory quality. He said that solving these problems would be a key step. In addition to poor build quality, the engines suffered from poor reliability,
the Chinese engines have been lasting 30 hours at a time vs 400 for the Russian originals.
He is talking about WS-10A model and not WS-10 is alredy dead long ago
Well I said , that Afterburner trust can be easily increase by providing extra fuel , the engine core thing is its DRY thrust , thrust with afterburners can increase easily later also.Moreover plane uses 80% of engine on Dry Thrust. and only 20 uses (wet thrust) .
