https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7323278.shtml
涡扇15发动机研制进程曝光：03批或完成 将装备歼20
涡扇15发动机研制进程曝光：03批或完成 将装备歼20
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威龙再出猛照！我军歼20隐身战机疑曝灰色涂装1/12
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战斗机的涂装，一直以来备受军事爱好者关注，当然，鼓吹“涂装无用论”的也大有人在。事实上，每一架战斗机涂装都不是随意为之，里面都大有深意，其中大部分是出于提高战斗机作战能力的目的。歼20隐身战机自亮相以来，其涂装就备受各个军迷的关注，而近日就有网友曝光了一张疑似灰色涂装的歼20战机照片，那么歼20的涂装到底是啥颜色呢？（来源：白龙_龙腾四海 DS走近哈佛 空军发布）
歼20现在还配备AL-31FN-M1涡扇发动机
歼-20战斗机研制成功之后，配套WS15涡扇发动机成为大家关注的焦点，近日网上出现了中国航发技术成果的图片，从中似乎可以推测WS15涡扇发动机研制进程。
从相关图片来看，WS15涡扇至少已经完成03批发动机，并且还完成了发动机改进，也就是改进批发动机，表明发动机研制正在向纵深发展。
F119涡扇发动机研制共生产了超过30部发动机
许多人可能感觉奇怪，为何一型还没有投入实用发动机为何要生产这么多，实际上航空发动机需要长时间进行试验才能验证发动机性能，为了加快试验进度，就需要多部发动机同时进行测试，以美国F119涡扇发动机为例，1991年普惠公司获得工程发展合同，就包括9部研制试验发动机、33部飞行试验发动机，试验项目包括8900发动机试验和7000小时推力矢量喷管试验，后来根据试验进展情况，减少1部飞行试验发动机，增加了2部地面试验发动机，因此WS15涡扇发动机已经完成03批发动机，它的各项试验正在紧锣密鼓的进行之中。
航空发动机需要经过长时间试验才能获得完成性能，期间可能还要进行改进
F-22强悍性能很大程度来源于F119涡扇发动机
考虑到发动机试验需要多部发动机，这样对于相关单位生产能力提出了更高要求，所以我们看到WS15从03批开始采用了MBD技术（基于模型的数字化制造）传统航空发动机制造虽然也实现了三维设计，但是加工的时候还需要转为二维图纸，这个过程比较繁琐，数据误差也比较大，而MBD是基于模型的数字化制造技术，从而有效提高了发动机制造效率。
航空发动机在研制过程之中会根据性能要求、试验出现情况、暴露的问题对发动机进行一定改进，F119涡扇发动机在研制过程之中就进行了相应改进，其中一个主要改进就是燃烧室由四区供油改为三区供油，以简化发动机结构，降低重量和成本，因此WS15在研制过程之中应该也进行了相应改进，从此前相关技术人员先进事迹可以看到WS15研制似乎遇到了发动机振动问题，航空发动机是典型三高产品（高转速、高压、高温），因此振动是航空发动机大敌，如果振动过大，不但会影响航空发动机本身性能和状态，还会影响飞机性能和状态，引起航空发动机振动原因有许多，包括航空发动机气动设计、部件匹配甚至包括发动机装配都会产生航空发动机振动，所以我们看到WS15先后进行了内、外涵道匹配设计，然后又进行了改进设计，包括整体动力特性、异常载荷等，甚至进行了核心机装配工艺等方面的研究。显然是为了控制航空发动机振动。
歼--20配备涡扇15应该已经指日可待
从这里可能看到WS15涡扇发动机研制应该已经进入尾声，针对此前研制过程之中出现了问题进行了有针对性完善和改进，取得了较好的成绩，装机应该已经指日可待，这里也可以看到空军和相关单位对于WS15研制态度谨慎，考虑到航空发动机研制难度极大， F119涡扇发动机在1991进入工程发展阶段，完成美国空军鉴定已经是1999年的事情了，而通过初步使用审批，完成工程发展已经是2002年的事情，从这个角度来讲，WS15这个发展方针还是符合实际的，否则就会出现欲速则不达的局面。（作者署名：小飞猪的防务观察）
https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7233551.shtml
沈飞FC31版舰载机模型亮相：首曝降落尾钩和折叠机翼
沈飞FC31版舰载机模型亮相：首曝降落尾钩和折叠机翼
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要改装舰载机？中国FC31隐身战机再曝试飞新照1/12
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FC-31战机是中航沈飞研制的第五代单座双发隐形战斗机，主要针对国际市场需求研发，目前尚未有入役我军的消息。近日，有网友上传了FC31的最新试飞照。（图片来源：Fighterman_久丽美学研究）
歼31舰载版本
中国舰载机之路走得艰辛且义无反顾，也正式当年的坚持和独立自主，才有了现在的歼15舰载机，随后电弹版本的型号问世，目前看中国海军的舰载机至少已经有了三个型号，但它们都是衍生自依靠乌克兰原苏33舰载机原型的T10而来，也是现在我们所说的歼15，而歼15现在有基础版本，还有弹射版以及今年出现的电子战版本。
对于中国第二代舰载机会以何面目现身，长久是个热门话题，再上必然是隐身了，所以大多数人都是把眼睛盯在了现在的歼20和歼31上，这也是显而易见的，毕竟现成的东西总比再重新开发要来的快和实在一些，但真的是这样么？不同的军迷总会有不同的答案。但现在看，歼15舰载机在当前背景下作为过渡机型却是不争的事实。
歼31舰载版本
但也因为歼15电子战型号的出现，多少让人有些费解，都是过渡机型了，为何还要再次开发它的新型号呢？其实这一点从美国海军身上就能找到答案，F/A-18即便有了现在后继型号F-35也不妨碍它在美国海军中的突出地位，以致E/A-18G也就理所当然的出现了。并且也可以预见，未来相当长的一段时间里也必然是隐身舰载机和现役主力型号共同服役的局面。
毕竟隐身舰载机有其使用上的局限性，对中国而言，未来的歼15又会和谁搭档呢？近日中国舰载机的摇篮沈飞给了我们一个相当惊艳的暗示，在歼31项目这么多年不断的开发和试飞后，已经出现了网友所说的3.0版了，但这可能还只是前进路上的一个节点而已，虽然一直有传言表示，歼31最终是为了出口所用，但它此次却真正的以舰载机的形象出现在了沈飞的航空博览园中。
歼31舰载版本
虽然依旧是模型，但此次出现的歼31完全不是以往的形象示人，这个歼31的新模型符合了舰载机的一切精准细节要求，降落用的尾钩，折叠的机翼设计都是首次出现在了它的身上，这也多少让有些判断对歼31战机最终上舰的军迷朋友占了上风，而这些细节的出现也最终暗示着大家不用再猜了！没错，中国的下一代舰载机就是具备隐身能力的歼31。
其实综合来看唱衰歼31的主要观点在于其动力和一些技术细节的问题，但显而易见，因为航展上黄山新型发动机首次出现在世人面前，这让大家才了解到原来还有一款涡扇19的发动机存在，而这可能就是歼31战机的标配动力，也就是说歼31的动力解决了，那么它上舰前的一切障碍基础就不存在了，据称光涡扇19的双发推力已经超过了F-35，那么其它还是问题么？（作者署名：长安小师爷）
Https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7323278.shtml
Turbofan 15 engine development process exposure: 03 batches or completion will be equipped with 歼20
Turbofan 15 engine development process exposure: 03 batches or completion will be equipped with 歼20
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Veyron is taking another shot! Our military 歼 20 stealth fighter suspected to be exposed to gray painting 1/12
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The painting of fighter jets has always been a concern of military enthusiasts. Of course, there are also many people who advocate "painting uselessness". In fact, each fighter is not painted at will, and there is a lot of deep meaning inside, most of which is for the purpose of improving the combat capability of the fighter. Since the 隐20 stealth fighter has been unveiled, its painting has attracted the attention of various military enthusiasts. Recently, some netizens have exposed a photo of a suspected gray painted 歼20 fighter, so the painting of 歼20 is 啥 color. ? (Source: Bailong _ Longteng Sihai DS approached Harvard Air Force released)
歼20 is now also equipped with AL-31FN-M1 turbofan engine 歼20 is now also equipped with AL-31FN-M1 turbofan engine
After the successful development of the J-20 fighter, the WS15 turbofan engine has become the focus of attention. Recently, there have been pictures of China Airlines' technical achievements on the Internet, and it seems that the development process of the WS15 turbofan engine can be inferred.
From the related pictures, the WS15 turbofan has completed at least 03 batches of engines, and also completed engine improvement, that is, improved batch engine, indicating that engine development is progressing in depth.
The F119 turbofan engine has produced more than 30 engines. The F119 turbofan engine has produced more than 30 engines.
Many people may be wondering why a model has not yet been put into practical use. Why is it so much to produce? In fact, aero engines need to be tested for a long time to verify engine performance. In order to speed up the test, multiple engines are required to be tested simultaneously in the United States. For example, the F119 turbofan engine was awarded an engineering development contract in 1991. It consisted of 9 research and development engines and 33 flight test engines. The test project included 8900 engine test and 7000 hour thrust vector nozzle test. In the case, one flight test engine was reduced and two ground test engines were added. Therefore, the WS15 turbofan engine has completed 03 batches of engines, and its tests are in full swing.
Aeroengines require long trials to achieve performance, and may require improvements during the aero engine. Long-term testing is required to achieve performance, and improvements may be made during the period.
The F-22's powerful performance is largely due to the strong performance of the F119 turbofan engine F-22. The F119 turbofan engine is largely derived from the F119 turbofan engine.
Considering that the engine test requires multiple engines, this puts higher requirements on the relevant unit production capacity, so we see that WS15 has adopted MBD technology (model-based digital manufacturing) from the 03 batch. Although the traditional aero engine manufacturing also realizes three-dimensional Design, but when it is processed, it needs to be converted into 2D drawings. This process is cumbersome and the data error is relatively large. MBD is a model-based digital manufacturing technology, which effectively improves the engine manufacturing efficiency.
During the development of the aero-engine, the engine will be improved according to the performance requirements, test occurrences and exposure problems. The F119 turbofan engine has been improved during the development process. One of the main improvements is that the combustion chamber consists of four zones. The oil supply is changed to the three-zone oil supply to simplify the engine structure and reduce the weight and cost. Therefore, the WS15 should be improved accordingly in the development process. From the advanced deeds of relevant technicians, it can be seen that the WS15 development seems to have encountered engine vibration. The problem is that the aero engine is a typical three-high product (high speed, high pressure, high temperature), so vibration is the enemy of the aero engine. If the vibration is too large, it will not only affect the performance and state of the aircraft engine, but also affect the performance and state of the aircraft. There are many reasons for aero-engine vibrations, including aerodynamic design of aeroengines, component matching, and even engine assembly, which will produce aero-engine vibrations. Therefore, we have seen WS15 successively designed the inner and outer ducts, and then improved the design, including the overall Dynamic characteristics, abnormal load He also conducted research on core machine assembly processes. Obviously to control the vibration of the aircraft engine.
歼--20 equipped with turbofan 15 should have been just around the corner - 20 equipped with turbofan 15 should be just around the corner
From here, it may be seen that the development of the WS15 turbofan engine should have come to an end. The targeted problems have been improved and improved in the previous development process, and good results have been achieved. The installation should be just around the corner. You can also see here. The Air Force and related units are cautious about the development of WS15. Considering the difficulty in the development of aero-engines, the F119 turbofan engine entered the engineering development stage in 1991. It is already 1999 in the completion of the US Air Force appraisal, and the project is completed through preliminary use approval. Development is already a matter of 2002. From this perspective, the development policy of WS15 is still realistic, otherwise there will be a situation where the speed is not up. (Author's signature: Xiaofei pig's defense observation)
Https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7233551.shtml
Shen Fei FC31 version of the carrier aircraft model debut: first exposure landing tail hook and folding wing
Shen Fei FC31 version of the carrier aircraft model debut: first exposure landing tail hook and folding wing
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Want to modify the carrier aircraft? China FC31 stealth fighters then exposed to test new photos 1/12
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The FC-31 fighter is the fifth-generation single-seat double-engine stealth fighter developed by AVIC Shenfei. It is mainly aimed at the research and development of the international market. At present, there is no news of our military. Recently, some netizens uploaded the latest test flight photos of FC31. (Source: Fighterman_Jiu Li Aesthetics Research)
歼31 carrier version 歼31 carrier version
China’s carrier-based aircraft has gone through hardships and has no hesitation. It has also been officially adhered to and independent in the past, and now has the current 歼15 carrier aircraft. Later, the model of the electro-elastic version came out. At present, the Chinese navy’s carrier-based aircraft has at least There are three models, but they are all derived from the T10 that relies on the prototype of the Ukrainian original Su 33 carrier. It is also what we are talking about now, and the 歼15 now has a basic version, as well as a catapult version and this year’s Electronic warfare version.
It’s a hot topic for China’s second-generation ship-borne opportunities. It’s a hot topic, and it’s invisible. So most people are eyeing the current 歼20 and 歼31, which is also obvious. After all, ready-made things are always faster and more real than re-development, but is this really true? Different military fans will always have different answers. But now, it is an indisputable fact that the 歼15 carrier aircraft is a transitional model in the current context.
歼31 carrier version 歼31 carrier version
However, because of the emergence of the 歼15 electronic warfare model, it is somewhat confusing, and it is a transitional model. Why should we develop its new model again? In fact, this can be found from the US Navy. Even if the F/A-18 has a current model F-35, it will not hinder its prominent position in the US Navy, so that the E/A-18G will naturally emerge. . It is also foreseeable that for a long period of time in the future, it will inevitably be a situation in which the stealth carrier aircraft and the active main models are in service.
After all, stealth carrier aircraft has its limitations in use. For China, who will partner with the future? Recently, the cradle of China's carrier-based aircraft has given us a rather astounding hint. After so many years of continuous development and flight test of the 歼31 project, there has been a version 3.0 that netizens said, but this may only be on the way. A node only, although there have been rumors that the 歼31 is ultimately used for export, but this time it really appeared in the image of the carrier aircraft in Shenfei's Aviation Expo Park.
歼31 carrier version 歼31 carrier version
Although it is still a model, the 歼31 that appeared this time is not the image of the past. This new model of 歼31 meets all the precise details of the carrier aircraft. The tail hook for landing, the folded wing design is the first time. It appeared on its body, which also made some judgments for the military fans who finally got on the 31st fighter, and the appearance of these details finally suggested that you no longer have to guess! Yes, China's next-generation carrier-based aircraft is the stealth capability.
In fact, the main point of view of the singer 31 is its power and some technical details, but it is obvious, because the new engine of Huangshan at the air show first appeared in front of the world, which made everyone realize that there is still a turbofan 19 The engine exists, and this may be the standard power of the 歼31 fighter. That is to say, the power of the 歼31 is solved, then the foundation of all obstacles before the ship is not present. It is said that the double thrust of the vortex fan 19 Already over the F-35, is the other problem still? (Author's signature: Chang'an Xiaoshi)
涡扇15发动机研制进程曝光：03批或完成 将装备歼20
涡扇15发动机研制进程曝光：03批或完成 将装备歼20
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威龙再出猛照！我军歼20隐身战机疑曝灰色涂装1/12
查看原图图集模式
战斗机的涂装，一直以来备受军事爱好者关注，当然，鼓吹“涂装无用论”的也大有人在。事实上，每一架战斗机涂装都不是随意为之，里面都大有深意，其中大部分是出于提高战斗机作战能力的目的。歼20隐身战机自亮相以来，其涂装就备受各个军迷的关注，而近日就有网友曝光了一张疑似灰色涂装的歼20战机照片，那么歼20的涂装到底是啥颜色呢？（来源：白龙_龙腾四海 DS走近哈佛 空军发布）
歼-20战斗机研制成功之后，配套WS15涡扇发动机成为大家关注的焦点，近日网上出现了中国航发技术成果的图片，从中似乎可以推测WS15涡扇发动机研制进程。
从相关图片来看，WS15涡扇至少已经完成03批发动机，并且还完成了发动机改进，也就是改进批发动机，表明发动机研制正在向纵深发展。
许多人可能感觉奇怪，为何一型还没有投入实用发动机为何要生产这么多，实际上航空发动机需要长时间进行试验才能验证发动机性能，为了加快试验进度，就需要多部发动机同时进行测试，以美国F119涡扇发动机为例，1991年普惠公司获得工程发展合同，就包括9部研制试验发动机、33部飞行试验发动机，试验项目包括8900发动机试验和7000小时推力矢量喷管试验，后来根据试验进展情况，减少1部飞行试验发动机，增加了2部地面试验发动机，因此WS15涡扇发动机已经完成03批发动机，它的各项试验正在紧锣密鼓的进行之中。
考虑到发动机试验需要多部发动机，这样对于相关单位生产能力提出了更高要求，所以我们看到WS15从03批开始采用了MBD技术（基于模型的数字化制造）传统航空发动机制造虽然也实现了三维设计，但是加工的时候还需要转为二维图纸，这个过程比较繁琐，数据误差也比较大，而MBD是基于模型的数字化制造技术，从而有效提高了发动机制造效率。
航空发动机在研制过程之中会根据性能要求、试验出现情况、暴露的问题对发动机进行一定改进，F119涡扇发动机在研制过程之中就进行了相应改进，其中一个主要改进就是燃烧室由四区供油改为三区供油，以简化发动机结构，降低重量和成本，因此WS15在研制过程之中应该也进行了相应改进，从此前相关技术人员先进事迹可以看到WS15研制似乎遇到了发动机振动问题，航空发动机是典型三高产品（高转速、高压、高温），因此振动是航空发动机大敌，如果振动过大，不但会影响航空发动机本身性能和状态，还会影响飞机性能和状态，引起航空发动机振动原因有许多，包括航空发动机气动设计、部件匹配甚至包括发动机装配都会产生航空发动机振动，所以我们看到WS15先后进行了内、外涵道匹配设计，然后又进行了改进设计，包括整体动力特性、异常载荷等，甚至进行了核心机装配工艺等方面的研究。显然是为了控制航空发动机振动。
从这里可能看到WS15涡扇发动机研制应该已经进入尾声，针对此前研制过程之中出现了问题进行了有针对性完善和改进，取得了较好的成绩，装机应该已经指日可待，这里也可以看到空军和相关单位对于WS15研制态度谨慎，考虑到航空发动机研制难度极大， F119涡扇发动机在1991进入工程发展阶段，完成美国空军鉴定已经是1999年的事情了，而通过初步使用审批，完成工程发展已经是2002年的事情，从这个角度来讲，WS15这个发展方针还是符合实际的，否则就会出现欲速则不达的局面。（作者署名：小飞猪的防务观察）
https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7233551.shtml
沈飞FC31版舰载机模型亮相：首曝降落尾钩和折叠机翼
沈飞FC31版舰载机模型亮相：首曝降落尾钩和折叠机翼
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要改装舰载机？中国FC31隐身战机再曝试飞新照1/12
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FC-31战机是中航沈飞研制的第五代单座双发隐形战斗机，主要针对国际市场需求研发，目前尚未有入役我军的消息。近日，有网友上传了FC31的最新试飞照。（图片来源：Fighterman_久丽美学研究）
中国舰载机之路走得艰辛且义无反顾，也正式当年的坚持和独立自主，才有了现在的歼15舰载机，随后电弹版本的型号问世，目前看中国海军的舰载机至少已经有了三个型号，但它们都是衍生自依靠乌克兰原苏33舰载机原型的T10而来，也是现在我们所说的歼15，而歼15现在有基础版本，还有弹射版以及今年出现的电子战版本。
对于中国第二代舰载机会以何面目现身，长久是个热门话题，再上必然是隐身了，所以大多数人都是把眼睛盯在了现在的歼20和歼31上，这也是显而易见的，毕竟现成的东西总比再重新开发要来的快和实在一些，但真的是这样么？不同的军迷总会有不同的答案。但现在看，歼15舰载机在当前背景下作为过渡机型却是不争的事实。
但也因为歼15电子战型号的出现，多少让人有些费解，都是过渡机型了，为何还要再次开发它的新型号呢？其实这一点从美国海军身上就能找到答案，F/A-18即便有了现在后继型号F-35也不妨碍它在美国海军中的突出地位，以致E/A-18G也就理所当然的出现了。并且也可以预见，未来相当长的一段时间里也必然是隐身舰载机和现役主力型号共同服役的局面。
毕竟隐身舰载机有其使用上的局限性，对中国而言，未来的歼15又会和谁搭档呢？近日中国舰载机的摇篮沈飞给了我们一个相当惊艳的暗示，在歼31项目这么多年不断的开发和试飞后，已经出现了网友所说的3.0版了，但这可能还只是前进路上的一个节点而已，虽然一直有传言表示，歼31最终是为了出口所用，但它此次却真正的以舰载机的形象出现在了沈飞的航空博览园中。
虽然依旧是模型，但此次出现的歼31完全不是以往的形象示人，这个歼31的新模型符合了舰载机的一切精准细节要求，降落用的尾钩，折叠的机翼设计都是首次出现在了它的身上，这也多少让有些判断对歼31战机最终上舰的军迷朋友占了上风，而这些细节的出现也最终暗示着大家不用再猜了！没错，中国的下一代舰载机就是具备隐身能力的歼31。
其实综合来看唱衰歼31的主要观点在于其动力和一些技术细节的问题，但显而易见，因为航展上黄山新型发动机首次出现在世人面前，这让大家才了解到原来还有一款涡扇19的发动机存在，而这可能就是歼31战机的标配动力，也就是说歼31的动力解决了，那么它上舰前的一切障碍基础就不存在了，据称光涡扇19的双发推力已经超过了F-35，那么其它还是问题么？（作者署名：长安小师爷）
Https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7323278.shtml
Turbofan 15 engine development process exposure: 03 batches or completion will be equipped with 歼20
Turbofan 15 engine development process exposure: 03 batches or completion will be equipped with 歼20
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Veyron is taking another shot! Our military 歼 20 stealth fighter suspected to be exposed to gray painting 1/12
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The painting of fighter jets has always been a concern of military enthusiasts. Of course, there are also many people who advocate "painting uselessness". In fact, each fighter is not painted at will, and there is a lot of deep meaning inside, most of which is for the purpose of improving the combat capability of the fighter. Since the 隐20 stealth fighter has been unveiled, its painting has attracted the attention of various military enthusiasts. Recently, some netizens have exposed a photo of a suspected gray painted 歼20 fighter, so the painting of 歼20 is 啥 color. ? (Source: Bailong _ Longteng Sihai DS approached Harvard Air Force released)
歼20 is now also equipped with AL-31FN-M1 turbofan engine 歼20 is now also equipped with AL-31FN-M1 turbofan engine
After the successful development of the J-20 fighter, the WS15 turbofan engine has become the focus of attention. Recently, there have been pictures of China Airlines' technical achievements on the Internet, and it seems that the development process of the WS15 turbofan engine can be inferred.
From the related pictures, the WS15 turbofan has completed at least 03 batches of engines, and also completed engine improvement, that is, improved batch engine, indicating that engine development is progressing in depth.
The F119 turbofan engine has produced more than 30 engines. The F119 turbofan engine has produced more than 30 engines.
Many people may be wondering why a model has not yet been put into practical use. Why is it so much to produce? In fact, aero engines need to be tested for a long time to verify engine performance. In order to speed up the test, multiple engines are required to be tested simultaneously in the United States. For example, the F119 turbofan engine was awarded an engineering development contract in 1991. It consisted of 9 research and development engines and 33 flight test engines. The test project included 8900 engine test and 7000 hour thrust vector nozzle test. In the case, one flight test engine was reduced and two ground test engines were added. Therefore, the WS15 turbofan engine has completed 03 batches of engines, and its tests are in full swing.
Aeroengines require long trials to achieve performance, and may require improvements during the aero engine. Long-term testing is required to achieve performance, and improvements may be made during the period.
The F-22's powerful performance is largely due to the strong performance of the F119 turbofan engine F-22. The F119 turbofan engine is largely derived from the F119 turbofan engine.
Considering that the engine test requires multiple engines, this puts higher requirements on the relevant unit production capacity, so we see that WS15 has adopted MBD technology (model-based digital manufacturing) from the 03 batch. Although the traditional aero engine manufacturing also realizes three-dimensional Design, but when it is processed, it needs to be converted into 2D drawings. This process is cumbersome and the data error is relatively large. MBD is a model-based digital manufacturing technology, which effectively improves the engine manufacturing efficiency.
During the development of the aero-engine, the engine will be improved according to the performance requirements, test occurrences and exposure problems. The F119 turbofan engine has been improved during the development process. One of the main improvements is that the combustion chamber consists of four zones. The oil supply is changed to the three-zone oil supply to simplify the engine structure and reduce the weight and cost. Therefore, the WS15 should be improved accordingly in the development process. From the advanced deeds of relevant technicians, it can be seen that the WS15 development seems to have encountered engine vibration. The problem is that the aero engine is a typical three-high product (high speed, high pressure, high temperature), so vibration is the enemy of the aero engine. If the vibration is too large, it will not only affect the performance and state of the aircraft engine, but also affect the performance and state of the aircraft. There are many reasons for aero-engine vibrations, including aerodynamic design of aeroengines, component matching, and even engine assembly, which will produce aero-engine vibrations. Therefore, we have seen WS15 successively designed the inner and outer ducts, and then improved the design, including the overall Dynamic characteristics, abnormal load He also conducted research on core machine assembly processes. Obviously to control the vibration of the aircraft engine.
歼--20 equipped with turbofan 15 should have been just around the corner - 20 equipped with turbofan 15 should be just around the corner
From here, it may be seen that the development of the WS15 turbofan engine should have come to an end. The targeted problems have been improved and improved in the previous development process, and good results have been achieved. The installation should be just around the corner. You can also see here. The Air Force and related units are cautious about the development of WS15. Considering the difficulty in the development of aero-engines, the F119 turbofan engine entered the engineering development stage in 1991. It is already 1999 in the completion of the US Air Force appraisal, and the project is completed through preliminary use approval. Development is already a matter of 2002. From this perspective, the development policy of WS15 is still realistic, otherwise there will be a situation where the speed is not up. (Author's signature: Xiaofei pig's defense observation)
Https://mil.news.sina.com.cn/jssd/2018-12-16/doc-ihqhqcir7233551.shtml
Shen Fei FC31 version of the carrier aircraft model debut: first exposure landing tail hook and folding wing
Shen Fei FC31 version of the carrier aircraft model debut: first exposure landing tail hook and folding wing
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Want to modify the carrier aircraft? China FC31 stealth fighters then exposed to test new photos 1/12
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The FC-31 fighter is the fifth-generation single-seat double-engine stealth fighter developed by AVIC Shenfei. It is mainly aimed at the research and development of the international market. At present, there is no news of our military. Recently, some netizens uploaded the latest test flight photos of FC31. (Source: Fighterman_Jiu Li Aesthetics Research)
歼31 carrier version 歼31 carrier version
China’s carrier-based aircraft has gone through hardships and has no hesitation. It has also been officially adhered to and independent in the past, and now has the current 歼15 carrier aircraft. Later, the model of the electro-elastic version came out. At present, the Chinese navy’s carrier-based aircraft has at least There are three models, but they are all derived from the T10 that relies on the prototype of the Ukrainian original Su 33 carrier. It is also what we are talking about now, and the 歼15 now has a basic version, as well as a catapult version and this year’s Electronic warfare version.
It’s a hot topic for China’s second-generation ship-borne opportunities. It’s a hot topic, and it’s invisible. So most people are eyeing the current 歼20 and 歼31, which is also obvious. After all, ready-made things are always faster and more real than re-development, but is this really true? Different military fans will always have different answers. But now, it is an indisputable fact that the 歼15 carrier aircraft is a transitional model in the current context.
歼31 carrier version 歼31 carrier version
However, because of the emergence of the 歼15 electronic warfare model, it is somewhat confusing, and it is a transitional model. Why should we develop its new model again? In fact, this can be found from the US Navy. Even if the F/A-18 has a current model F-35, it will not hinder its prominent position in the US Navy, so that the E/A-18G will naturally emerge. . It is also foreseeable that for a long period of time in the future, it will inevitably be a situation in which the stealth carrier aircraft and the active main models are in service.
After all, stealth carrier aircraft has its limitations in use. For China, who will partner with the future? Recently, the cradle of China's carrier-based aircraft has given us a rather astounding hint. After so many years of continuous development and flight test of the 歼31 project, there has been a version 3.0 that netizens said, but this may only be on the way. A node only, although there have been rumors that the 歼31 is ultimately used for export, but this time it really appeared in the image of the carrier aircraft in Shenfei's Aviation Expo Park.
歼31 carrier version 歼31 carrier version
Although it is still a model, the 歼31 that appeared this time is not the image of the past. This new model of 歼31 meets all the precise details of the carrier aircraft. The tail hook for landing, the folded wing design is the first time. It appeared on its body, which also made some judgments for the military fans who finally got on the 31st fighter, and the appearance of these details finally suggested that you no longer have to guess! Yes, China's next-generation carrier-based aircraft is the stealth capability.
In fact, the main point of view of the singer 31 is its power and some technical details, but it is obvious, because the new engine of Huangshan at the air show first appeared in front of the world, which made everyone realize that there is still a turbofan 19 The engine exists, and this may be the standard power of the 歼31 fighter. That is to say, the power of the 歼31 is solved, then the foundation of all obstacles before the ship is not present. It is said that the double thrust of the vortex fan 19 Already over the F-35, is the other problem still? (Author's signature: Chang'an Xiaoshi)
