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

[Chengdu J-10]

Re: JH-7/JH-7A Thread

Also the JH-7/A is heavier then its western and russian counterparts....so upgrades to the JH-7/A would be using more composite materials and increasing the thrust in the engines.

 

[crobato]

Re: JH-7/JH-7A Thread

Its not really heavier than its Western or Russian counterparts, which includes the Jaguar, F-4 Phantom, the Tornado, the Su-24 and the F-111. Its just its design generation---including its Western and Russian counterparts---just don't have the TWR of todays generation. All the planes I mentioned above are considered underpowered today, and some of whom, even back then.

 

[Deino]

Re: JH-7/JH-7A Thread

Very nice ones ...

 

[tphuang]

Re: JH-7/JH-7A Thread

解放军飞豹系列战机将赴俄参加联合军演


2007年04月18日 07:16 中国航空报
本报讯(记者姜春艳)3月31日，中国一航总经理林左鸣、副总经理顾惠忠率队到杭州空军某师慰问并看望集团公司派驻的服务保障人员。林左鸣在此间要求各企事业单位要积极听取部队需求，做好服务保障工作；对服务保障工作要做到思想上高度重视，组织上严格落实，行动上协调一致。
　　此次到部队走访，中国一航高度重视。一航办公厅、航空产品部、发动机事业部、质量安全部和思想政治工作部的主要领导，以及一航西飞、一航一飞院、一航雷电院、一航光电所、一航上电所、一航自控所、一航西航、一航金城南京液压中心等单位的主要领导均到达现场。空装科订部副部长张文健、南空装备部部长王洪国等也陪同慰问。
　　据了解，“飞豹”系列飞机将参加中俄“和平使命2007”联合军事演习，为做好军演保障工作，中国一航与空装机关日前在杭州召开了军演保障工作协调会，制定了详细的工作计划和措施安排，集团公司各有关单位也已紧急行动，针对各单位情况制定了相应的工作安排。此次林左鸣率队到部队走访就是想更多地听取部队的意见和需求，进行中俄军演保障工作动员。
　　在双方座谈中，空军领导介绍了飞机的使用情况，对工业部门如何做好服务保障工作提出了意见和要求。林左鸣对此表示，这次到部队走访很重要的任务就是进一步了解情况，加强售后服务工作，同时对部队表示感谢，中国一航“十五”期间重点型号任务能够顺利完成，空军做出了卓越贡献，功不可没。
　　林左鸣说，中俄联合军演是要在全世界面前展示实力，意义重大，不同寻常，工业部门一定积极配合部队，做好服务保障工作，现在所属单位已经行动起来，进行了具体部署。
　　就如何做好中俄军演保障工作，林左鸣要求各单位首先在思想上要高度重视。要认识到作为工业部门不仅仅是把装备交给用户就完成任务了，企事业单位要转变观念，加强与部队的对话、沟通、联系。各单位必须一把手挂帅，重视服务保障工作，要从使用的第一线获取第一手的信息反馈。其次，组织上要严格落实。现在，外场服务部门独立完成后勤保障工作的时代已经过去了，各单位对服务保障工作的组织要整编完善，确保对部队的后勤支援。第三，在行动上要协调一致。各单位要发扬大集团精神，主机厂所要负全责，各机载配套单位要听从主机厂所的统一协调指挥。
　　林左鸣希望各单位要向这支航空兵学习，学习他们“泼辣、顽强、敢打、必胜”的精神。他说，特别是外场服务更要讲吃苦耐劳、奋力拼搏的精神，各单位应加强艰苦奋斗精神的教育，努力做好外场服务工作。
　　期间，林左鸣一行参观了师史馆、飞机现场和机务大队，慰问了集团公司派驻现场的服务保障人员，并向部队赠送了慰问金。

It's official, JH-7A is going to be part of the peace mission 2007. This is from a pretty reputable source. The China aerospace daily (aka HKB). This is an article from the 18th of April, basically today in China.

 

[gordonblade]

Re: JH-7/JH-7A Thread

:china:

Great, so we can see both J-10 and JH-7A during the coming Peace Mission 2007. Wonder if the FC-1/JF-17 going to miss this party...:nana:

 

[crobato]

Re: JH-7/JH-7A Thread

The FC-1 still needs to be OPVAL'ed yet. I don't think you will see it in an exercise for a while. The PLAAF can set up a regiment of FC-1s, and then invite the Pakistanis to fly them during exercises against other PLAAF units.

 

[adeptitus]

Re: JH-7/JH-7A Thread

Thats what I said in my last post, if you read it properly you can see that I said that. But anyway just a curious question how much structural or other modifications would be required to increase the JH-7/A range? As the range of the JH-7/A is not particular that great. I know that China is not yet seeking to strike other nations and stuff like that and is merley "currently" defending its nation. So currently their is no need to extend the JH-7/A range beyond Tawain. But in the near future China will exert its power beyond Tawain as everybody knows or suspects. So curious as the JH-7/A aircraft is newish what would the change be in increasing its range????

We could look at other aircraft (MiG-29, F-16, etc) and what they did to improve range:
* Additional drop tanks
* Additional internal fuel tanks, such as the latter MiG-29's dorsal-mounted internal fuel tanks
* Conformal fuel tanks
* In-flight refueling probe
* Improved engine technology (better fuel efficiency)

The JH-7 platform will most likely go through many improvements during its service life. I wouldn't be surprised if you see more fuel storage capacity in future variants.

 

[Chengdu J-10]

Re: JH-7/JH-7A Thread

Its not really heavier than its Western or Russian counterparts, which includes the Jaguar, F-4 Phantom, the Tornado, the Su-24 and the F-111. Its just its design generation---including its Western and Russian counterparts---just don't have the TWR of todays generation. All the planes I mentioned above are considered underpowered today, and some of whom, even back then.

The Tornado has an overall shorter length and height than the JH-7 also the engines on the Tornado are less powerful than the JH-7 but can achieve higher Max speed of Mach 2.2 compare to JH-7 Mach 1.7....but this isnt the factor of concern...range is about the same...fuel load about the same....but payload is different Tornado can carry 9tonne payload while the JH-7 with higher thrust engines carry less than JH-7 with 6.5tonne payload....Solution in own personal opinion is to reduce the length of the JH-7 increase the wing area....use more composite in construction.....achieve TVC engines to at least increase the issue of manuverability on JH-7.....this would hopefully increase payload to at least 7tonne....500kg makes a big difference....only a personal view.....Though design of the JH-7 still revolves around the J-8 too much....in a personal perspective not really a revolution design despite it being a young aircraft to be introduced to the airforce.

 

[crobato]

Re: JH-7/JH-7A Thread

JH-7A is quoted for 7 ton payload.

Some planes quote rather useless figures. Some quote payload ranges that are useless because they would entail such speed and range sacrifices to use them. Others quote useless maximum speed figures because they can only be achieved if the plane is in a clean configuration and carrying only half of the internal fuel.

Tornado definitely has the advantage of variable wing for sure. I believe its also lighter.

Just to let you know, the underpowered F-111 is quoted for 14 tons of payload. The Su-30 is quoted for 9 tons.

 

[tphuang]

Re: JH-7/JH-7A Thread

The Tornado has an overall shorter length and height than the JH-7 also the engines on the Tornado are less powerful than the JH-7 but can achieve higher Max speed of Mach 2.2 compare to JH-7 Mach 1.7....but this isnt the factor of concern...range is about the same...fuel load about the same....but payload is different Tornado can carry 9tonne payload while the JH-7 with higher thrust engines carry less than JH-7 with 6.5tonne payload....Solution in own personal opinion is to reduce the length of the JH-7 increase the wing area....use more composite in construction.....achieve TVC engines to at least increase the issue of manuverability on JH-7.....this would hopefully increase payload to at least 7tonne....500kg makes a big difference....only a personal view.....Though design of the JH-7 still revolves around the J-8 too much....in a personal perspective not really a revolution design despite it being a young aircraft to be introduced to the airforce.

you have to check the combat radius at different loads, speed and profile. Obviously, if you fly at mach0.85, you are going to be far more fuel efficient than mach 1.69. So, in the end, I don't believe Tornado has better range than JH-7 if both are carrying 4 Harpoon/YJ-83 sized AShM. Also, even though flankers are stated to have longer range/payload than JH-7, in actuality, they don't. A lot of the export specs are given at optimal conditions.