BAE Systems Inches Out In Public On Electronic Warfare

Cockpit, radar, helmet-mounted display, and other avionics
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SpudmanWP

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Unread post17 Oct 2016, 22:02

The ALE-70(V) has a 400 Flight Hour limit
https://doni.documentservices.dla.mil/S ... 000.16.pdf
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neptune

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Unread post17 Oct 2016, 22:27

SpudmanWP wrote:You need a VLO airframe in order for the -239 to be effective enough to do the job. Remember that the radar (ie the only jammer element) only covers the front aspect.


Spud, sorry for the misunderstanding,
... these a/c are getting the AESA to improve costs (time/ materials).

.... as this AESA upgrade is implemented, it appeared that these same a/c could replace their existing EW systems with a mature system (-239) that could be upgraded as the F-35/-239 is upgraded. This is not an alternate to the F-35/-239 but an improvement in their legacy SA and possibly another sensor node for an available F-35. Adding passive receiving sensors would not be an issue, as they are not LO.

IMHO
:)
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Unread post17 Oct 2016, 22:29

That makes more sense :)
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popcorn

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Unread post17 Oct 2016, 23:38

SpudmanWP wrote:It's looking more and more like the ASQ-239 is active jamming capabilities outside of the APG-81.

Other things that it might be.. part of the IFF system or a way of sending midcourse updates to weapons that are not within the forward arc (ie update-able by the APG-81).

The plot thickens....

Could be the CNI shares the same emitters?
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Unread post17 Oct 2016, 23:45

Anything is possible...
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popcorn

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Unread post18 Oct 2016, 00:02

SpudmanWP wrote:The ALE-70(V) has a 400 Flight Hour limit
https://doni.documentservices.dla.mil/S ... 000.16.pdf



Need to swap batteries? :D
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les_paul59

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Unread post18 Oct 2016, 00:17

unfortunately we don't have all the specs on a system like the f-35's ew suite, but I think that the reason the U.S. is so confident in this jet is that the ew suite is a cut above everything else when combined with the vlo airframe and the radar.

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Unread post18 Oct 2016, 00:32

popcorn wrote:
SpudmanWP wrote:The ALE-70(V) has a 400 Flight Hour limit
https://doni.documentservices.dla.mil/S ... 000.16.pdf



Need to swap batteries? :D


Likely heat & vibration
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wrightwing

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Unread post18 Oct 2016, 02:01

The article says that the ASQ-239 has broadband self-protection jamming capabilities, among its other capabilities. The APG-81 isn't mentioned.
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Unread post18 Oct 2016, 04:14

There is plenty of documentation talking about the interaction of the APG-81 and the ASQ-239 in the active jamming role.
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garrya

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Unread post18 Oct 2016, 07:16

eloise wrote:Since lower RCS reduces jamming power requirements, i reckon that it can make terrain bounce jamming useful even at high altitude ? what do you guys think?

Technically speaking , terrain bounce jamming can be thought about as standoff jamming , the case of normal fighter using direct jamming vs stealth fighter using terrain bounce jamming can be represented as follow ( the image get resize so please open in new tab to see full size) :
Image
Any math genius ? :mrgreen:
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garrya

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Unread post18 Oct 2016, 07:24

Now that we know F-35 can carry ALE-70 , this beg a new question to speculate , how many of those can it carry ?
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Unread post18 Oct 2016, 09:34

garrya wrote:Now that we know F-35 can carry ALE-70 , this beg a new question to speculate , how many of those can it carry ?


I would say not many as towed decoys are fairly large and take up quite a lot of space. I think usually these systems have two decoys to be used and I doubt there is space for more inside F-35. Besides, I don't think many would be needed in any event as it would be pretty hairy situation where you would need more than that.
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garrya

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Unread post18 Oct 2016, 10:02

hornetfinn wrote:I would say not many as towed decoys are fairly large and take up quite a lot of space. I think usually these systems have two decoys to be used and I doubt there is space for more inside F-35. Besides, I don't think many would be needed in any event as it would be pretty hairy situation where you would need more than that.

I think it can probably carry 4 decoys if we look at this photo
Image

Typhoon arrangement look like this , and it can have 2 decoy at wing tip
Image

F-16 have 4 towed decoy with this arrangement
Image
Image
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garrya

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Unread post18 Oct 2016, 10:31

Because of eloisa question , i looked at some jamming vs radar problem , not sure if that just me or effect of jamming seem too good to be true ?
:shock:
weak jammer , high RCS and range burn through still extremely short ??????
Image
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