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

kooe

Banned Idiot
Re: Jh-7 thread

crobato said:
They ran out of Speys long time ago building the two regiments of JH-7s plus prototypes and spares. All the JH-7As got WS-9s.
o.... i c, thanks....
btw can anyone explain to me y jh-7A added 2 extract hardpoints?
 

tphuang

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Re: Jh-7 thread

kooe said:
o.... i c, thanks....
btw can anyone explain to me y jh-7A added 2 extract hardpoints?
it's a fighter bomber, it needs the extra hard points to carry more ordinance. Especially with the plaaf version.
 

Totoro

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Re: Jh-7 thread

I remember seeing one pic where jh7's inner pylon carried 6 bombs and it was said they're 250 kg each. These look pretty similar, so that could be 1500 kg on inner and 1000 kg on outer pylon. Not bad. I wonder if outer pylon is wet one with some 1 ton fuel tank designed for it. Inner pylon could then carry even some heavy hitters in the class of storm shadow or taurus to a fine distance (with 3 tanks), when their equivalents get developed.

I really wonder though if that jh7a only outermost pylon can carry pl12 class weapons. If one thinks about it, jh7 is really not a bad platform to base an interceptor on. It can carry a powerful and large radar, it has the legs matched only by flankers, it's perfect. Even on strike missions, pl12 as self defence weapons would be much more useful than pl8. Too bad about the design and positioning of the landing gear space, if somehow they could've pulled off the landing gear to swivel backwards (i know, i know - the engines) one would have plenty of space to carry a pl12 class weapon under the each intake.
 

maglomanic

Junior Member
Re: Jh-7 thread

crobato said:
They ran out of Speys long time ago building the two regiments of JH-7s plus prototypes and spares. All the JH-7As got WS-9s.

I have repeatedly come across comments regarding WS-9s that they are much better in terms of powe compared to speys. Can you or anyone else kindly tell how much WS-9s have alleviated the "under powered " problem of JH-7s??
 

MIGleader

Banned Idiot
Re: Jh-7 thread

I never got the impression the ws-9 was more powerful than the Spey. It might offer a teeny bit more than a second-hand spey, but not much. Tphuang mentioned sometime ago it was the use of more composites in the jh-7a that made it less underpowered(but still inferior to western models)
 

maglomanic

Junior Member
Re: Jh-7 thread

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"The first batch of the JH-7 was powered by the Spey Mk202 engines purchased from Britain in 1975. All effort to reverse-engineer the engine have failed since then. By the 1990s it was deemed too costly to redesign the aircraft for the Russian AL-31 turbofan. It appears that by 1998 the PLA was ready to go back to Rolls-Royce and pay for technology to permit co-production. The PLA reportedly purchased from RAF another 80~90 second-hand Spey 202s, acquired by 2001, and entered into a new co-development program which would enable China to finally produce its own version of the engine known as WoShan-9 (WS-9), or “Qin Ling” in its commercial name. A 2001 report noted that if successful, the new engine co-production program could lead to the construction of another 150 JH-7s for the PLAAF and PLANAF. If the WS-9 is an up-rated version of the Spey, as some sources suggest, that would meet a longstanding JH-7 requirement for greater power.
"


Another source repeats the exactly same above and cites "barrie and sherman" as source.
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" If it is an uprated version of the Spey, as some sources suggest, that would meet a longstanding JH-7 requirement for greater power. A 2001 report noted that if successful, the new engine co-production program could lead to the construction of another 150 JH-7s.[76] And in early December 2003 the PRC’s CCTV carried footage of new JH-7s in production, which appeared to be a new version of the fighter-bomber.
"
 

swimmerXC

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Re: Jh-7 thread

jh780106agw9.jpg

jh780106qo3.jpg
 

spc_ace

New Member
Registered Member
Re: Jh-7 thread

JH-7 capabilities have really gone from strength to strength. Any news on the progress of JH-7B project?
 

challenge

Banned Idiot
Re: Jh-7 thread

tphuang said:
one constant question on the capability of Chinese fighters lay in the radar department.

There is always speculation on when Chinese fighters will get AESA radar.

The item below is something I found on Chinese forums regarding a possible AESA radar developed for future models of JH-7A.

328/328甲全固态机载相控阵雷达(JH-7A飞豹2的机载雷达)
名  称: 328/328甲全固态机载相控阵雷达
体  制: 全固态有源阵、单脉冲、脉冲压缩
波  段: X
研制单位: 中国科学院电子研究所、长风机器厂、航天部二院二十五所、上海电子物理研究所、中国雷华电子研究所等多家科研机构
研剖奔洌骸?993年开始,1999年完成第一阶段计划:328全固态机载相控阵雷达
研制目的: 研究全固态机载有源相控阵雷达
现  状: 2002年9月已发展到第二阶段:可装备试用阶段:328甲全固态机载相控阵雷达

I'm thinking this is just one of the many ongoing AESA radar projects, but we will see.

It says that type 328 radar started development in 1993, finished first round of development in 1999 and finished second round of development in September of 2002 and can begin trialing

Again, no indication that this radar has landed on JH-7 or that China has developed the capability to produce millions of T/R modules, but we will see how this goes.
the article do not mention which radar band.during MAK2004 airshow in moscow,Phozotron told aviation week that there's 2 Chinese firm developing AESA.
 
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