SinoDefence Forum

challenge

it is likely Ws-10 is refering to development model,while WS-10A refering to production model.
Will WS-10A will power J-15,or complete different variant of WS-10?

cloyce

[ 发动机 fādòngjī ] letteraly means "the Machine(机) that SendsMotion(发动) "

WS stands for [ 涡扇 wōshàn ]
涡 is the contraction of [ 涡轮机 wōlúnjī ] meaning "turbine"
扇 is the contraction of [ 风扇 fēngshàn ] meaning "ventilator" or "fan"

Put all these things together and you've got [ 涡轮风扇发动机 ] more commonly known as [ 涡扇发动机 WōShànFādòngjī WSF] alias Turbofan Engine.

I Think they put FWS instead of WSF just because it's more convenient when you classify different types of engines on an alphabetical table.

dingyibvs

Fadonji basically means engine here.

RedMercury

3 level heirarchy typical of Chinese military designations:
First level is what kind of thing is it? An engine-- F
Second level is what kind of engine is it? A turbine-- W
Third level is what kind of turbine is it? A fan type -- S (versus jet type--P)

another example is ZTZ (armored vehicle, tank, main battle tank)

EDIATH

Cheers for that!

You have plucked a thorn out of my mind, as I've been confused by the ZTZ designation for ages

That also explains why no engine gets the first letter "F" unless they got deployed by PLAAF. WS10 might be a test engine before the end product FWS10/WS10A after all.

Deino

Thanks for all the exolanations ... but why the "F" now only with the WS-10 ??

Also the other "engines" are engines and the letter "F" could have been used in other types too like FWP-14 for the Kunlun or FWS-9 !

Deino

RedMercury

My guess is official designations versus manufacturer's own names, which may be used more commonly.

ReneDad

There is another possibility---the letter "F" doesn't mean Fadongji at all. It may be the initial letter of Chinese word "Fan" (means "reverse" or "opposite"). That means in a dual-engine plane, designers may make the two engines revolving in reverse direction each other so they can balance the torque caused by the revolving of engines. Or they may fix different accessories respectively on the left or the right engines with different positions to make the maintenance (without dismantling the engines but via the openings of fuselage) convenient.

In short, if WS-10 is assumed to be mounted on the left of the fuselage of a J-11, FWS-10 will be the one on the right.

There are rumors that the right engine and the left engine of WS-9 on JH-7 and WP-14 on J-8B are exchangeable like western fighters. But J-11 is based on Russian design, so it may be different.

challenge

core technology.

tphuang

this is kind of interesting
talks about factory 5719, which is located in Sichuan, doing MRO for a new 3rd generation engine (I think AL-31FN). It says that their work allows the service life of the engine to be extended from 900 hours to 1500 hours.

Rising China

China will have new attack helicopter Z19.

ASIAN DEFENCE: Prototype of New Chinese Attack Helicopter Revealed

Lion

You post in the wrong thread, are you?

lilzz

Articles describes China has mastered the WS10A technique to prolong the lifespan of the engine, it's already superior to Russian's AL31F. The lifespan of WS10A is now at 3x times of the AL31F.

It does sound legit. not some BS stuffs.

ÌØ´óÀûºÃ£¡ÖйúÌ«ÐÐÐÂÐÍ·¢¶¯»úÒѳ¬Ô½¶íÂÞ˹AL31F_ÐÂÈñ ½â¶Á_Î÷½Íø

HKSDU

Wouldn't suprise me as most Soviet/Russian hardware wasn't made to last, it was mean't to be cheap and once service life was up, simply replace it.

RedMercury

Well, it was meant to be used in a war where the expected lifetime of the aircraft was measured in hours. No point gold-plating a pawn you expect to sacrifice... Just a different doctrine.