Chinese Engine Development

R

ReneDad

New Member
Deino said:
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 ! :confused:

Deino
Click to expand...

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.
 
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tphuang

tphuang

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this is kind of interesting
中国三代战机发动机再制造技术达到国际先进水平
2010年07月28日 18:37　来源：中国新闻网　

　　中新社北京7月28日电 (杨春源 李翔 陶社兰)解放军第5719工厂自主创新三代飞机发动机关键部件再制造技术，突破了由少数西方国家对航空发动机再制造技术的垄断，使三代战机的发动机寿命从900小时延长到1500小时。

　　偏居成都平原一个小镇上的5719工厂，是隶属于空军装备部的装备保障性企业，担负着军用航空发动机修理保障的重任。这个仅有2000多人的普通空军装备修理企业，短短几年间完成63项科研成果，20多项获得国家、军队科技进步奖，自主创新的军用航空发动机再制造技术达到国际先进水平；发动机修理能力成倍增长，2004年总资产才11个亿，6年后就达到29个亿，资产增长超过263%。

　　2004年，某新型航空发动机维修线刚刚建成，航空兵部队一批发动机进厂急待维修。如何快速形成新型发动机批量修理能力？

　　工厂拿出的第一个举措，是打破旧有的生产模式和利益格局，进行彻底的生产流程再造。经过8个月的重新调配修理资源、改革修理流程，修理能力显著提升，某型发动机平均修理周期降幅达27.3%。此后，他们根据部队保障任务的变化，对流程进行持续改进、优化，修理能力每年增长率达60%以上，先后实现了由维修二代机向三代机、由单机种、大批量维修向多机种、小批量维修的跨越。

　　随着大批新型航空装备在部队列装，新型军用航空发动机关键、重要零部件供应，逐渐成为制约空军战斗力持续生成的突出问题。工厂专门组织精兵强将集中攻关，自主创新了21项具有国际先进水平的三代飞机发动机关键部件再制造技术，突破了由少数西方国家对航空发动机再制造技术的垄断，使空军三代战机的发动机寿命从900小时延长到1500小时，相当于使1台发动机发挥了1.6台发动机的作用，取得了巨大的国防军事、经济和社会效益。

　　质量是航空发动机维修的生命线。为了确保维修质量“零缺陷、出精品”，从2005年开始，5719厂采取设立“质量警示墙”、质量建设大讨论等多种形式，引导职工在质量工作上不断强化瞄准一流、追求卓越的意识。在那道89米长的质量警示墙上，空军历史上的每一起等级飞行事故和地面事故，工厂历史上发生的10多起较大质量问题，等等，赫然在目。“文化铸魂”引领了维修质量的提升，工厂至今修理的发动机不计其数，已连续14年未发生因工厂责任造成的等级飞行事故。(完)
Click to expand...
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.
 
L

lilzz

Banned Idiot
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.

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H

HKSDU

Junior Member
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.
 
R

RedMercury

Junior Member
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.
 
tphuang

tphuang

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lilzz said:
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.

Please, Log in or Register to view URLs content!
Click to expand...

it is typical BS stuff. Until they can come up with something real, it's hard to believe WS-10A can reach 3 times of AL-31F service life right now. It will eventually get to have longer life, but it's still very immature. The article is just referring to the skills they learnt from doing MRO on AL-31F in factory 5719.
 
Deino

Deino

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A close look at this FWS-10A seems to indicate that the afterburner/nozzle-feathers are of a slightly different design to the ones we've seen in Zhuhai before ... or am I wrong !??

Deino
 

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