China's J-11B indigenous WS-10A engines have no smoke

[Martian]

China's J-11B jets are equipped with indigenous Chinese WS-10A engines. The Chinese WS-10A silver engine nozzle is very different from the Russian AL-31F black nozzle. In the video below, the Chinese J-11B with WS-10A engines flies around with NO SMOKE exhaust.

The Chinese WS-10A engine has complete combustion. All of the jet fuel is converted into thrust. There is no smoke. In contrast, Russian jet engines are smoky, because of incomplete combustion.

 

[indiatester]

Looking good.... congratulations!!!

 

[DingDong]

When will will we build our own Jet Engine? Martians and Lunatics are not gonna declare war against us any time soon.

 

[shiphone]

1.this one in the video is one of the latest batch for the 3rd J11B Regiment of PLAN aviation,which was test flying before the final delivery...

few days ago ...J11B of Navy in action over the Eastern Sea

2.so far there are at least 7 regiments of such J11B/BS fighters flying with WS10A engine...the total numbers has been more than 170, and more than 400 engines are working...the engines' working situation and service record are improving after the high failure rate in the first a few years as the 'the bathtub curve theory' indicates... the reliability performance of WS10A engine is moving ahead to the bottom curve but it would take another a couple of years...

3. new varients of Su27/J11 family will equip the WS10 serial...the production of J11B began with a small batch J11B with AL31F engines... but J11BS trainer, J16 Attacker, J15S shipboard trainer, J11D fighter took the maiden flight with the WS10A engine only, and none of them ever used the AL31F... WS10A(12.5 tons class) also could be seen on one of the J15 prototypes(No.554),but the Small Batch Production(similar to LSP concept) are still using the imported AL31F. we are waiting for the maturity of the Naval varient of WS10H(12.8 ton class) and looking forward to seen it on the following batch of J15... the WS10B(13.5 ton class) for J10 serial is also on the way, but it would took some more time, so the first SP batch of J10B were powered by AL31FN-serial3 (also 13.5 ton class).

4.AL31 serial is not as smokey as RD33 serial...so normally we can't see too much smoke after the Su27... the fuel-rich combustion or Oxygen- rich combustion is the essential choice in the early stage of engine design. but Oxygen- rich combustion design doesn't mean

All of the jet fuel is converted into thrust.

which is impossiable

 

[pmaitra]

This is a good achievement. The MiG-29 does smoke a lot.

 

[sob]

One of the reasons for going in for SU 35 was the lack of good engine made locally. So now we can expect the order for SU 35 to be cancelled.

 

[shiphone]

For now though, 117S is not the key at all...
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the improvement and evolution of AL31 serial engine in Russia has Split by two competing teams:

UMPO : AL31F --> 117S -->117
Salyut : AL31F --> AL31FM1(99M1) --> AL31FM2(99M2) --> AL31FM3(99M3)(?)

Salyut is the real partner of China in Russia which means better relation between two sides than with UMPO... decade ago China has offer the funds to Salyut to develop the AL31Fn for J10 serial which help the Salyut enhance the R&D ability and now they turn to be a R&D - production association from a plant only. china also offer more funds for the Salyut further improvement projects of AL31F engine, we have also seen the results now- the 13.5 ton class AL31F-M1 for RuAF Su27SM upgration and Su34, the AL31Fn-serial 3 on J10B which is also a 13.5 ton class engine...the AL31F-M2 is said to be a 14.2 ton class one which is more possible to be fitted even on J20 .etc china fighters ... the supply of AL31F serial engine was never a problem for China coz the good relation with Salyut and many activities between two sides bypassed the Russian Government which might annoy Putin the emperor and some action was taken later...LOL...

117S engine is new to PLAAF and China's support and maintenance system, actually PLAAF is somehow on the opposite side in the Su35 deal coz they would have to setup a relatively extra support , maintenance and overhaul system for the new plane and engine but the number is so limited --24 to 48 jets...

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the TVC integrated Flight Control system and new structural design of air frame should be the Points of interest... the radar/avionic , weapon pack are not ...and so so for the engine itself.

but in essence, Su35 deal is a Government to Government deal , a political deal and an unexpected deal...