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Thread: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

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    Re: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

    Quote Originally Posted by Redress View Post
    Doesn't work like that. Pilots where taught when I was in that when they got the alert in the headset, punch off a ****load of chaff. It is used when an aircraft is detected by radar, and by extension being tracked by a missile. If the aircraft is not locked or painted, chaff doesn't do any good.
    As long as the chaff blinds the defenses, what does it matter what plane it came from?

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    Re: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

    Quote Originally Posted by ecofarm View Post
    As long as the chaff blinds the defenses, what does it matter what plane it came from?
    If the chaff is not between the target aircraft and the missile(or potentially the aircraft firing the missile and painting the target), it won’t do anything. It is a relatively small area it is effective in, and does not stay effective long.
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    Re: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

    Part of the problem is that people who don't know what they are talking about seem to think stealth makes pushed invisible. It doesn't. What it does is make them harder to detect meaning that when dealing with an air defense site the aircraft is either already turning and running away or already fired it's missiles before they are detected. And while dealing with other fighters it allows more time for the stealth aircraft to get in a favorable position before getting detected.
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    Re: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

    Quote Originally Posted by Redress View Post
    Stealth is a truly weird thing. I would suspect, though this is more guess than anything else, that they found a way to mold the right materials into the right shape to not sacrifice stealth by having the chaff launchers(which are these big square things with a bunch of bored holes). It takes very little to significantly reduce stealthiness, so I suspect that was the issue. Being stealthy is better than having chaff launchers, but having stealth and chaff launchers is even better.
    It very much is. Though I think for modern missiles the chaff needs to be calibrated such when its released its a reasonable facsimile of an F-35 to the radar receiver on board. I wonder if they are doing flares and decoys too?
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    Re: The F-35A Is Set to Finally Get Chaff Countermeasures to Confuse Enemy Radars

    Quote Originally Posted by PirateMk1 View Post
    It very much is. Though I think for modern missiles the chaff needs to be calibrated such when its released its a reasonable facsimile of an F-35 to the radar receiver on board. I wonder if they are doing flares and decoys too?
    The missile follows a radar return into the target. The purpose of chaff is to disrupt that radar return, so the missile loses tracking. It does not make a facsimile of an aircraft, it just blocks the radar.

    Edit to be more complete and explain better: The chaff "bucket" looks like this:

    chaffbucket.jpg

    Each of those round things contains either chaff, a flare or a jammer. Jammers work exactly like they sound, sending out bursts of microwaves on the frequency used by radar(I think they may sense on a range of frequencies and tune their output frequency based on that, but way above my paygrade there, just a guess), to interfere with the radar signal. If it works, the missile will lose lock. Flares work like I think you envision chaff working, sending out a very hot IR radiation, which hopefully the heat seeking missile will end up homing in on. Chaff works by diffusing the radar signal, kinda bending the signal so the missile cannot follow it into the target.
    Last edited by Redress; 09-11-19 at 12:21 AM.
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