JH-7/JH-7A/JH-7B Thread

Discussion in 'Air Force' started by MIGleader, Nov 19, 2005.

  1. MIGleader
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    MIGleader Banned Idiot

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    we need a thread to discuss all things jh-7 related. like exactly what is the fate of the aircraft? will china build more jh-7as or upgrade the fighter even more before production? what new engine will an improved jh-7 fit?
     
    #1 MIGleader, Nov 19, 2005
    Last edited by a moderator: Dec 13, 2013
  2. darth sidious
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    darth sidious Banned Idiot

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    Re: Jh-7 thread

    What is the payload of JH-7a I heard is 9 tons but that seems a bit relastic but as the orignal is powered by speys riped out from Rafs phantoms could that be true
     
  3. jatt
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    jatt New Member

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    Re: Jh-7 thread

    Probabily not. It looks heavier than the Jaquar and its a two seater.
     
  4. tphuang
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    tphuang Super Moderator
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    Re: Jh-7 thread

    Let's just talk about JH-7A. Powered by 2 WS-9 engine right now. Which 9.8 kN of thrust using afterburners and a T/W ratio of 6.55.

    It has 6500 KG of payload. Uses JL-10A as its radar, carries China's latest precision strike pods. It also launches YJ-83 as its ASM. I'm not sure if it supports PL-12.

    As for upgrade, JH-7A actually underwent a huge upgrade from JH-7. It's entire cockpit is all modern now. Next upgrade could consist of redesigning the frame to allow for AL-31F/WS-10A engines.
     
  5. Gollevainen
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    Gollevainen Super Moderator
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    Re: Jh-7 thread

    Well i have heard intresting rumour about that Jh-7 has something to do whit Yugoslavian-Romanina Orao attack plane. I heard that Romaninas, a good pals of china during that time (in the 70's) Were in hands of similar requirments and that orao was orginally mented to be a twin seat attacker whit twin SPEY engine arragments. Somehow, UK didnt want to sell military spey into Warsawpact nation and the co-operation prospect was cut of, Balkan nations were forced to stick whit tiny Viper, and China got their Speys elsewere. Also was mentioned that Unbuild Romanian IAR-95 jet fighter has some relations of similar Spey engined chinese unbuild projects.

    Anyway, Orao an JH-7 has always got to my eye as very similar planes in concept (not in size) and if you take look of them, you find some similarityes...

    And remember, this is just wild rumour, I dont believe it my slef 100%, but you never know...:confused:
     
  6. MIGleader
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    MIGleader Banned Idiot

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    Re: Jh-7 thread

    9 tons should be a goal for the next jh-7 model to achieve. the jh-7a achived a 1.5 ton increase in weight carrying ability do to the more cpable engine and more use of polymers. but plane needs a whole engine altogether..would wsd-13 work? al-31 might be considered, but that would require a signifigant change to the entire airframe, and would hugely expensive.

    anyways, is the next jh-7 going to be a su-34/jh-7 hybrid? china certainly has studied deeply into the su-34, and it would be a shame to see such a design wasted serving in small numbers in the russian af.
     
    #6 MIGleader, Nov 20, 2005
    Last edited: Nov 20, 2005
  7. tphuang
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    tphuang Super Moderator
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    Re: Jh-7 thread

    If next generation of JH-7 is to assume the role of the primary attacker in PLAAF, then it will have to use AL-31F in the next variant. WS-13 is actually a superior engine, but it's much smaller in dimension than JH-7. Also, the next generation of JH-7 supposedly will be more stealthy.

    Anyway, an article on China's next attacker:

    搏杀中国新一代战轰机---揭三飞机集团的竞争

    作者:风孤独
      
      重所周知,军用飞机特别是军用战斗飞机的利润比普通民用机要高很多,而且需求更稳定,因此,谁的飞机被认可,谁就能获得巨大的利益和长期的兴旺,甚至能决定各厂商今后的命运。这点,从俄罗斯两家飞机巨头苏霍伊和米高扬近年来的发展情况便知。 转自铁血 http://www.tiexue.net/
      
      因此,为了抢夺军用战机这快利润丰厚的蛋糕,早已觊觎西飞在战斗轰炸机市场上独占花魁局面的国内另两家已经完成改制,要自负盈亏的飞机巨头成飞和沈飞,为了各自长久利益,利用自己研制军机历史经验的优势,必然将在战斗轰炸机市场上与西飞飞豹一争雌雄。
      
      首先,沈飞自从引进SU-27生产线后,公司内部进行体制改革,打破大锅饭,逐步提高自主创新能力,其在SU-27基础上全新研制的歼11B型飞机,取代了俄罗斯提出的SU-27改进型方案,获得了极大的成功。而我国花大价购买的SU-30MKK战斗轰炸机即在SU-27基础上改进而来,并且在最近的央视曝光照中,我们清晰的看到了一架与SU-34及其类似的新型战斗轰炸机的身影,按照沈飞目前的实力和科研水平,沈飞基于歼11开发重型轰炸机参与竞争几成定局,这款类似SU-34的机型将会对空军有巨大的诱惑,对飞豹A构成严重威胁。
      
      再看成飞,歼10的载弹量7吨,性能有目共睹。放眼全球,从以色列F-16 I到F-15E,从幻影2000-9到SU-30MKK,世界上目前使用的主力战斗轰炸机都由优秀的空优战机改型担当,而歼10双座已完成试飞,成飞搞出歼10战斗轰炸型应该不是难事,其更好的机动性和更小的机身反射面, 将比现有的飞豹有更好的低空突防能力和空战生存能力。 转自铁血 http://www.tiexue.net/
      
      而目前西飞虽已取得空军订单,但其并未高枕无忧,而是玩命的改进,他们知道飞豹A并非完美,其机动性差,发动机推力不足,雷达对地探测能力有限等问题将会使其在未来竞争中处于不利地位,为了改变这种局面,只有不断的改进,我们已可喜的看到了西飞新飞豹的模型,新的进气道和发动机,新的隐身设计等,足以说明他们的忧患意识的。
      
      按以上分析来看,我国新型战斗轰炸机将可能在以上三种方案中产生
      
      类似SU-34的沈飞 新战轰,类似F-16I 的成飞歼10B和西飞的飞豹III
      
      是类似SU-34的新战轰好还是带隐身设计的飞豹III好,还是轻巧的歼十B好,或者高低搭配?限于篇幅,这个问题由网友评述,但我国战机工业必将会在这场竞赛中,得到极大的发展。
      
      除了俄罗斯苏,米两家的例子,我想谁都不会忘了另一个竞争失败的例子,当年麦道最后不得不归附于波音,除了其MD-90市场表现不佳外,在美国下一代战斗机计划中提前出局,也是重要的原因。
     
  8. crobato
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    crobato Senior Member

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    Re: Jh-7 thread

    JH-7 is a much bigger aircraft than the Oreo. If you notice all the aircraft that used Rolls Royce engines, including the Jaguar, they seem to have certain similarities. But its most likely its all because all these aircraft are designed in the same generation when the Roll Royce engines were hot, and the design they have is sort of like the fashion trend then. Note aircraft design tends to follow trends like delta wings, variable geometry, canards, and now even stealth.

    Yes, the JH-7A can use the PL-12. The company that made the PL-12 seeker is the same as the company that designed its radar. The PL-12, and PL-11 has been shown in the JH-7A mockup.

    I'm not sure what the PLAAF's next attacker might look like. Some say an Su-32 look alike. I think CAC may be trying to offer its twin engined J-10 derivative instead. Unless XAC has their own proposals, but if they lose the business supplying attack jets, XAC might end up building purely commercial planes like its AJR-21 project.
     
  9. Gollevainen
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    Gollevainen Super Moderator
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    Re: Jh-7 thread

    Ofcourse it is bigger, that's the hole point of those rumours...you see i said that Yugoslavia and romania were sticked to vipers wich requires the aircraft being quite small. in effect the Jh-7 is the plane (based on these rumours) that Orao orginally should have been...
     
  10. adeptitus
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    adeptitus Senior Member

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    Re: Jh-7 thread

    IMO the JH-7 is not a fighter, and its ability to use the PL-12 AAM is of secondary importance. The primary reason to even field them is that the Russians don't like PLAAF using locally made AShM's on Sukhoi aircraft.

    Like the newer F-15's that can carry 4 Harpoon's, the JH-7 can be equipped with 4 PRC-made AShM's, such as the YJ-82K for anti-shipping strike missions. A pair of JH-7's and unload 8x YJ-82K's against a ship from up to 120km away. OR, if the YJ-83 is avail, from as far as 250km away. Except for dedicated air defense ships, most warships today would not survive an attack from 8 anti-ship missiles.

    If the Russians allowed the PLAAF to make source code modification to combat computer and use locally made munitions on Su-30's, then there would be less incentive to deploy the JH-7's.
     
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