abstract translation:
Daokou, he insisted that J20 use WS15 long ago just without any solid evidence. and he also pointed out the existence of WS14 Kunlun, now proved.
another rumor (2012) was:
there are four types of ws15, the reason why they have same code is unkown.
the first type ws15 is 15 ton thrust for J10, and at the same time Chengdu aircraft company need a 17 ton engine for her newly designed aircraft, based on ws15, 17ton ws15 appeared, chengdu applied this ws15 on J10 too though there were many small issues on the new engine.
at the same time, a strange event happened, a small stated owned manufacturer developed a new technological process which can massively decrease the weight of engine by "xxxxxxx turbine blade", such progress could be also regarded as a revolution, and engine made under such tech could be regarded as a new conception engine.
so, proof analysis were carried out internally, finally military related department reckoned it's feasible, since the new tech can massively decrease the weight of engine, new engine can carry more blades. the result is that J20's ws15 has 24ton thrust.
not too long, the new 24ton ws15 came out, but with many issues since the 15ton and 17ton were still under development.
upon the same period, shenyang J31++ is looking for a suitable engine too because the original engine for J31 did not have good life span. then chengdu and shenyang two manufacturers established a jointed committee to co-develop a new engine, which code is still ws15, but was simplified version. last year, a craft body was transportted from shenyang to xian to study how to install new ws15 to J31. as for that J31 flying over shenyang is a smoke grenade.
View attachment 399765 View attachment 399766
( reasonable explanation is for static loads test， but shenyang has abilities to carry out such test on a such small body )
there is the fifth type of ws15, the Vector one, however it seems not necessary due to its high trust. except tech research, every one now focus on engine.
the recent results: the simplified version is ok now, 24ton ws15 is basically fine.
beliver it or not.
http://hongdezk.com/a/linxidiaosou/20170528/94910.html
刀口：打脸要沉住气
2017-05-28 08:14
栏目：临溪钓叟
我的确一直说是歼二十一开始就装的峨眉涡扇十五的，这个没有错。
让我们“再次”庆祝胜利吧！所谓再次，就是每被证实一次，崇洋媚外的跪舔派们就要抵赖一次，那就让我们一次次庆祝，一次次欢呼吧！哈哈哈！
大家有时间喝一杯！
打小白和跪舔派的脸要沉住气，这次走进中国《匠心》报道里，昆仑赫然出现，记得当年那些跪舔大V们说的吗？“昆仑已死，有事烧纸”，这回报道里有昆仑装配的镜头，你看当年那些小王八蛋们还露头吗？这脸打的PIAPIA的，笑死。
2012年有人在天涯发的帖子
消息的来源我就不细说了，我爷爷开会回来我问出来的，马上就要公开了，不算什么泄密。
大家一直以为ws15是一款发动机，其实不是， ws15一共是四款，我不知道为啥不各自搞个代号，方便区分。这其中的曲折还是很有传奇色彩的。
原本 ws15是最大推力15吨，用在歼十上的，结果中间出了一款小插曲，成飞设计了一款新飞机也缺发动机，就想把 ws15改一下，改到貌似是十七吨，但是当时把握不大，就想了个办法两款一起搞，当时口号是保十五争十七。
最传奇的就在这，十五吨搞好了，在歼十上试飞了。十七吨型号的也行，但是小问题不少，也是准备放歼十上先试一试。就在这时出了一件神奇的事情，中央的一个小小的企业，搞制造的，搞出了一个新工艺，直接解决了发动机核心的叶片的问题，不但解决了，还大大减轻了发动机的重量，已经不是量变而是质变了。
当时就这事内部军工兔开会论证了一阵子，毕竟这玩意谁也没搞过，在某些方面上来说已经是款新概念发动机了。当时论证的结果是可以造出来。这里还有个大问题，航空发动机重了不行，轻了就更不行了，这种新工艺最大的特色就是降低了发动机的重量，如此就必须增加叶片，最后的论证，推力必须增加叶片，把最大推力增加到24吨才能装到新飞机上， 其实就是歼二十上，你没听错，是最大推力最低必须达到24吨。
这个论证结果让军工兔顿时蛋疼的厉害，但是没办法还是得造啊。军工兔又开始了 ws15第三个个型号的设计制造，果然没过多久要出来了，其实整体上改的不大，就是叶片加了不少。所以造的倒是挺快，但问题就出在前两款都还没搞好，这款发动机搞出来了，问题大大的有。太先进了也蛋疼。
这时候出了一件更奇葩的事情，应该就是沈飞的小二黑31型。也缺发动机。小二黑的个头不大，而且小二黑的发动机军工兔早研究过了，就是寿命不行。这下正好，把两个单位人员合并一下，成立个新的委员会统一指挥，做个简易型号安上去做实验，型号还是叫ws15. 蛋疼！这样就既能验证新概念发动机，又能两款一起实验好快速发现问题，快速定型。于是 ws15出了第四个型号。上次运去的那架粽子机就是拉去研究怎么装发动机的。实验这种简化版的新概念发动机。沈飞那架哥么觉得就是个烟雾弹。
其实还有第五款，就是矢量的，但是不准备生产了，因为新发动机不需要矢量技术。只是还在做技术研究，貌似没人对他感兴趣，撂在一边，兔子都忙着新发动机去了。
告诉大家一个好消息，这次我爷爷去开会，就是内部定型的会议，简化版的早没啥问题，24吨的也基本都解决了，这次成果汇报会之后应该就定型了。
. Something fishy happening? I guess they revealed too much on that show.
