PLA AEW&C, SIGINT, EW and MPA thread

[ba12]

Given that the speed is 850 km or so and endurance set at 12 hrs, how does one end up with a difference of near 3000 km for range?

 

[planeman]

range is misleading as it tends to ignore refueling, whilst endurance is a better guide I think. You could theoretically keep the plane up longer still via refeuling but it'd be a serious risk IIRC.

 

[danielchin]

The 3,000 KM range might be coming from the IL-76 spec (3,650 KM with max payload). What makes the "duration" much shorter than the "range"?

 

[Wolverine]

Range should also include the trip back, so that would be 6,000km. And 850km/hr may be maximum speed, or the aircraft may not fly at 850km/hr for some or most of the time, or some parts of the trip may burn more fuel, like the ascent to 9-10,000m altitude, etc.

 

[challenge]

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interview with radar engineer involve in the KJ-2000 program.
according to the interview, KJ-2000 hhas bigger antenna than phalcon and E-3C sentry.
but also admit the radar shortcoming was her side lobe.making the radar vulnerable to side lobe jamming.
(sept.2009 issue of kanwa,claim that a western defen.analysis told the editor that KJ-2000 radar are very vulnerable to jamming.)
more likely that the aircraft is still being "debug".

 

[Hyperwarp]

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interview with radar engineer involve in the KJ-2000 program.
according to the interview, KJ-2000 hhas bigger antenna than phalcon and E-3C sentry.
but also admit the radar shortcoming was her side lobe.making the radar vulnerable to side lobe jamming.
(sept.2009 issue of kanwa,claim that a western defen.analysis told the editor that KJ-2000 radar are very vulnerable to jamming.)
more likely that the aircraft is still being "debug".

What are the implications of this? Is this specific to the KJ-2000 or also in the Phalcon the IAF recently got? Can someone summarize....

 

[optionsss]

admit the radar shortcoming was her side lobe.making the radar vulnerable to side lobe jamming.

I read the same report, but where did it say that?

If you are referring to this:

相控阵体制虽然先进，对多批次、大范围，远距离目标探测效果好，跟踪快，但也有一些先天不足，比如由于波束扫描到大角度上性能变差，天线副瓣不容易做低，往下看时，反杂波能力
不如传统天线，对付单个目标不如后者。

It is just making a general statement about phased array. It said "not easy to make the side lope small". The person was just mentioning some of the technical difficulties they have to face.

 

[challenge]

during oct-1 military parade, a chinese CCTV-7 news show a brief report about the KJ-2000,the entire crew,from the pilot to the radar operators uses the side door to enter the aircraft, by contrast, the russian A-50U ,the radar operator (excluding the pilots)enter the aircraft from the tail or the cargo ramp.and this could explain why the aircraft was not even pressurized
it mean,KJ-2000 may have undergoes modification, picture of strip-down IL-76 was posted in the chinese website,without the engine,or her flight components,the entire aircraft undergoing -rebuilding,the cargo ramp was discarded,and likely unlike A-50U,her entire LRU and power supply was place under floor,rather than in the ceiling , cabin pressurization ,use of composite material.
the end result was complete different platform.

 

[peperez]

Correct. But what pepe try to convey is that the conflict doesn't really prove the superiority of the equipment used.

Just like Mauser 96 vs Sabre. You used the rifle and kill a opponent using sabre. Does that prove your Mauser is good in the 90's with better choice of weapon like Carbine and Ak-74?

Or I change it in another way. I used Carbine and killed a opponent using sabre on me. Does it really prove Carbine is good?

Yehp! You got it! You can not assume a material is better when the defeated fought against impossible odds.

Pepe

 

[peperez]

The antenna of KJ-2000 weights 16 metric tons.

And is a phased array PESA radar, in theory better than the used at E-3.