J-8 next gen

planeman

Senior Member
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Ok guys, here is my vision of a 4th Gen Finback evolution:
wvo61e.jpg

As you can see it's way different from the J-8II. I started by giving it TVC exhausts fitted to RD-333 Turbofans fed by Divertless Supersonic Intakes (DSI). The bigger engines required the fuselage to be made fatter. The single tail is replaced by twin outward canted vertical stablizers mounted further forward to compensate for the increased weight of the engine/exhausts. The single folding ventral fin (under tail) is replaced by twin fixed fins allowing an arrestor hook for carrier landings.

Canard foreplanes are added in front of the wing to add to the super-maneuverability.

The wing has been altered from simple delta to double delta much like the later J-7s but with tip mounted launch rails for SRAAMs (PL-8 shown). The wing folds for carrier storage.

In addition to the six under wing pylons (only two underwing PL-12s shown), the fighter carries two PL-12s semi-recessed to the engine nacelles. The centreline pylon is normally used for a fuel tank but can also accomodate a single KS-172 ultra-long range "AWACs killer" missile.

The radome is slightly bigger than the J-8II and would feature a more recent multimode radar, assisted by IIST.
 
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ahho

Junior Member
Twix101 said:
Okaaaaay... I was maybe wrong for the Mirage but if you see the general general general apsect of the front...:D

[qimg]http://img.photobucket.com/albums/v221/Twix101/J-8V.jpg[/qimg]

I would consider this bird almost totally a different plane than the latest J-8
 

MIGleader

Banned Idiot
ahho said:
I would consider this bird almost totally a different plane than the latest J-8

The rear section of that plane bears some resemblance to the fc-1. The intakes are mighty big for a fighter with only one engine.
 

ahho

Junior Member
MIGleader said:
The rear section of that plane bears some resemblance to the fc-1. The intakes are mighty big for a fighter with only one engine.

if you look at the drawing again closely with the middle part such as the sides behind the cockpit, it would be a two engine plane.
 

Gollevainen

Colonel
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Like I said, here's continue to the "what if..." chinese fighter saga...

As the Xian's suggestion, the illfated J-11 failed to satisfy the PLAAFs need to J-8 replacement, Hongdu and Chengdu joined together to work on new project. The requirements called for fighter able to compete F-15 and the latest soviet fighters in equal terms so chinese went on with broadly similar type of aircraft. Manuverability was main priority and to gain that the aircraft was designed to be unstable from the start, completed with modern Fly-By-Fire controls. It was first intended to field some sthealth features but that would have considerably lenghten the development period and the need for modern interceptor was more urgent so those plans were dropped. Dropping out the sthealth features didn't improve the fact that the development schedule was lacking seriosly. As an intermediate solution, Chinese government purchaced Su-27s from russia. It's unclear how much the new aqustion affected the J-13 project but as seen on the picture, there are some similarity over these two planes. At least the russian jet offered a good comparing limit to the J-13 to exeed.
The first prototype flew in 1994 and was powered by two WS-6 turbofans giving approx. 27 000 lbs thrust each with afterburner. The production aircrafts were fitted with more powerfull WS-10 turbofans with 32 000 lbs respectvectly. First unit came operational in 1998 and today there are about 94 examples in service and total of 250 is to be comleted till 2009.

(orginal picture by Matej Fudra...)
j114fg.jpg
 

tphuang

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well, I'm not sure where is a good place to post this, but this picture shows the cost of the parts for a fighter from SAC (ordered in 2004). From WP-13II, it's clear that this is one of the J-8II variants. Anyhow, it names all the parts and costs (not sure if its per unit cost or yearly cost or whatever). It mentions radar as Type 1492, radar cover, seat, missile launcher, display system, air data processor and a bunch of other things.
j8fpartscostjuly26ql8.jpg
 

adeptitus

Captain
VIP Professional
I think the prices are probably not for single units?

Assuming if I'm reading the Chinese correctly, the prices are given in wan-yuan (10,000), and the current exchange rate is 1 USD = 7.57 RMB.

If the price listed was for 1 unit, it'd mean the price for the WP-13B2 or Type 1492 radar is over $20 million USD each. That's way too much.
 

adeptitus

Captain
VIP Professional
I found this reference:

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歼-8Ⅱ换装了两台涡喷-13A双转子发动机,单台推力6600千克。发动机推力的提高,可提高飞机的中低空机动性,也使起飞着陆性能得到改善;外挂增加至七个,可悬挂多种武器或副油箱,使飞机具有全天候拦射能力并兼有对地攻击能力,并装备了雷达制导的中程拦射导弹。前起落架后装一门23mm双管炮。机尾下部安装可折叠腹鳍,结构与米格-23相当类似。歼-8Ⅱ单价约 3500万人民币

That's about $4.x million USD in 1980s? By 1990s the estimates had gone up to $100 million RMB ($12.5 million USD). If they produce latest variant with updated systems, it's likely to be even more than that.
 

tphuang

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from HKB (aerospace daily)
HKB报道一航沈阳所全力做好飞鸡生产技术服务中提到:型号飞鸡换装发动鸡是中央军委,中国一航决策的重点科研项目。由于部队对改装飞鸡进行了调整,因此需要对飞鸡进行恢复和改装。。。。

basically saying that SAC is doing upgrades on a parituclar plane (looks like J-8IIs). They are upgrading the engine on the plane mostly.
 
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