JF-17 Block-3 -- Updates, News & Discussion

[m52k85]

why Pakistan never went with western engine? why went for Russian engine?

.. in addition the likes of eurojet and 414 are 2 to 3 times more expensive. I guess PAF didnt feel it was justified to put a 6000 hrs engine on a 3/4 thousand hour airframe.

 

[AMRAAM]

International Defence Analysis

PL-10E is slated to be part of Block-III upgrade & will be #PAF’s first short range missile with Infrared Imaging #IIR homing. PL-10E is 5th gen SRAAMs & ena...

www.youtube.com

Is it equivalent to or better than MICA IR?

 

[Deino]

View attachment 666094

Block 3??

 

[Meejee]

Block 3??

Nope. Block 2. Look at the landing lights.

 

[Deino]

Nope. Block 2. Look at the landing lights.

I know, but why did he post it in the Block thread?

 

[Akh1112]

I know, but why did he post it in the Block thread?

Hey Deino, i @'ed you on twitter regarding the block-3s rwr, did you manage to figure anything out? I spoke to some others and they could not.

Thanks,

https://twitter.com/x/status/1301240371343691778

for reference

 

[Deino]

Hey Deino, i @'ed you on twitter regarding the block-3s rwr, did you manage to figure anything out? I spoke to some others and they could not.

Thanks,

https://twitter.com/x/status/1301240371343691778

for reference

Sorry ... me neither!

 

[PDF]

I know, but why did he post it in the Block thread?

How about we report it so that mods remove the post from this thread?

 

[Akh1112]

Sorry ... me neither!

No problem!

 

[Deino]

How about we report it so that mods remove the post from this thread?

I did not rate it so grave to report it...

 

[The Raven]

Hey Deino, i @'ed you on twitter regarding the block-3s rwr, did you manage to figure anything out? I spoke to some others and they could not.

Thanks,

https://twitter.com/x/status/1301240371343691778

for reference

If you're referring to the new fairings on the side of the ECM housing at the top of the fin, those are the new IR-based MAWS units. The previous UV-based MAWS units were housed at the base of the fin, near the drag chute housing. I can only presume that the new IR-based MAWS were relocated to the top of the fin to reduce IR interference from the engine exhaust and provide a cleaner sensor image.

 

[Akh1112]

If you're referring to the new fairings on the side of the ECM housing at the top of the fin, those are the new IR-based MAWS units. The previous UV-based MAWS units were housed at the base of the fin, near the drag chute housing. I can only presume that the new IR-based MAWS were relocated to the top of the fin to reduce IR interference from the engine exhaust and provide a cleaner sensor image.

Thanks, i am wondering about the actual antennae on the end of the tip of the tail. The earlier block use dual antenna ALR-400 but that one looks different.

 

[m52k85]

If you're referring to the new fairings on the side of the ECM housing at the top of the fin, those are the new IR-based MAWS units. The previous UV-based MAWS units were housed at the base of the fin, near the drag chute housing. I can only presume that the new IR-based MAWS were relocated to the top of the fin to reduce IR interference from the engine exhaust and provide a cleaner sensor image.

would you know advantage and disadvantage of IR vs UV based? The J-10Cs seem to have completely gotten ridden of MAWS altogether.

@Deino

 

[The Raven]

would you know advantage and disadvantage of IR vs UV based? The J-10Cs seem to have completely gotten ridden of MAWS altogether.

@Deino

The main advantage of IR based MAW sensors is greater range, however, identification of missile exhaust plumes against background IR clutter has been a problem with developing IR based MAWS. UV based MAWS don't have that problem, but they suffer from very short range (a few km) and interference from solar derived UV radiation, depending on the aspect angle of the missile engagement. Recent advances in software and IR sensors has allowed the development of IR based MAWS. Early production versions of the J-10C did not have the IR based MAW system, presumably because it was still under development, but later production models include both forward and rear aspect IR MAWS. The same system has been integrated on the JF-17 Block III.

The IR MAWS are seen in this later production J-10C, located at the top of the fin ECM fairing and air intake, in a similar manner as those on the Block-III

The research paper in the link below describes some background on IR vs UV based MAWS.

https://publications.tno.nl/publication/34618678/TP7xRE/neele-2005-two.pdf

 

[m52k85]

The main advantage of IR based MAW sensors is greater range, however, identification of missile exhaust plumes against background IR clutter has been a problem with developing IR based MAWS. UV based MAWS don't have that problem, but they suffer from very short range (a few km) and interference from solar derived UV radiation, depending on the aspect angle of the missile engagement. Recent advances in software and IR sensors has allowed the development of IR based MAWS. Early production versions of the J-10C did not have the IR based MAW system, presumably because it was still under development, but later production models include both forward and rear aspect IR MAWS. The same system has been integrated on the JF-17 Block III.

The IR MAWS are seen in this later production J-10C, located at the top of the fin ECM fairing and air intake, in a similar manner as those on the Block-III

View attachment 667991

The research paper in the link below describes some background on IR vs UV based MAWS.

https://publications.tno.nl/publication/34618678/TP7xRE/neele-2005-two.pdf

Thank you very much for your answer. A good summary plus a citation for more details. I hope more interactions on pdf are of this type.