Combat: Evading Lethal Range Radar Guided Missiles Tutorial | DCS WORLD 

lol

I really appreciate your input on this. I’m really new to DCS and modern-ish fighters. Learning everything from scratch and finally up to countermeasures and evasion practice with guided air to air munitions. This was a well put bit that I was able to follow well. If you have any required reading/viewing I’d love to hear about it!

no is not only an S. awareness of what to do, to do it in the best way. It's the difference between someone who does an S mechanically, and someone who is master of the situation and knows what to do and how to do.

My only problem is that, as far as I know, the Fox 3 on-board radars are Pulse, not Pulse Doppler? I stand to be corrected.

@@grimreapers To my knowledge, there is no difference. All pulsing radars will measure the doppler shift of the radar return to improve the signal to noise ratio. Important side notes for successfully pulling this off: You want your closure rate to be their airspeed. This means flying perpendicularly to the target. I explain it that way because any radar returns that have a Doppler shift matching the product of the emitting vehicles velocity and emission cycle rate at the time of the ping are discarded as background clutter. If you're travelling towards something and the target is stationary, your radar pings will be compressed by a factor of the speed of the radar emitter/receiver package and the emission cycle rate. This factor is calculated in real time by the radar platform, and any pings that return with Doppler shifts matching this expected value are automatically eliminated. This dramatically improves the signal:noise ratio, because while the signal strength isn't amplified by this data filtering technique, the amount of ambient noise is significantly reduced. Secondly, you don't want any of your surfaces facing perpendicular to the target. Radar energy is light in the microwave spectrum. Like visible spectrum light, it reflects from surfaces at the angle of incidence. If that angle is 90° to the target, the radar energy will be reflected directly back at the receiver. While on all non-stealthy aircraft, there will be surfaces that reflect the energy back in all directions, some areas will channel radar energy into a narrower area than the more rounded surfaces. This ideally means avoiding the tail control surfaces or wings being 90° to the radar. 45° on both is good, hiding your tail behind the body of your aircraft and 30° offset on the wings is even better. This does mean you're inverted to the missile and will struggle/find it impossible to visually acquire it, but visual acquisition of a radar guided missile doesn't help you notch it much. Your RWR will do most of the legwork in figuring out if you're in the notch or not. If it's perfectly abeam, your notching. If not, you're not. There is a minor margin for error, but once the closure rate on the missile is missiles own airspeed plus or minus highway speed, then you're less likely to be misidentified as background clutter and discarded. This is also a damn good reason not to break the speed limit on the highway when there's a low altitude dogfight occurring. If your speed is high enough and straight towards or away from the missile, there's a chance your car could be identified as an abeam jet in a reduced energy state. Your Porsche does not have a chaff dispenser, nor can it trade altitude for energy to kinetically evade the missile, so you will just die. But you might save the pilot the missile was fired at, and if he survives he will have a beer in your honour. So there's that. Another interesting physics exploit is using the sun as a permanent flare to reduce the signal:noise ratio of a Fox-2, dumping a string of flares that lead towards and across the sun from the missile perspective, and then breaking perpendicular to the string of flares so that if the flares don't fool the missile, the sun might do the trick, being much hotter than a flare and releasing much more infrared radiation. The sun is actually approximately 3x brighter in the IR spectrum than it is in the visible spectrum, and as it is its already bright enough to blind you in under a second of direct observation. Only the most modern missiles, mainly the AIM-9X can adequately tell that the sun isn't actually a Pratt and Whitney, and I think that's just by having a much, much more sensitive seeker head that can distinguish the cooler jet engines in front of the sun in the background. This is also why 9Xs are better at defeating countermeasures. They don't just search for the hottest thing, but will actively monitor the temperature of the thing they're observing and ignore unrealistic deviations from that temperature. If a plane could only realistically heat up by 70° in half a second through extreme friction in a high speed, high G turn, the 9X won't usually suddenly go for a flare 350° hotter than the plane that's releasing them. The missile is programmed smart enough to know that can only be a flare.

This has been my long standing question with no convincing answer yet

normal people have countermeasures on override, and paralleling a missle, rolling and using 5-12 chaff bundles seems to do the trick

Pleasure

Pleasure

I can't process this stuff fast enough for that haha 😅

that's right because the to the missiles seeker the aircraft is not moving and he is low to the ground so the missile can't distinguish the difference between the terrain and the aircraft. also called notching

@@robinflack231 Thanks for that. I thought so. 😀

The ones in the game do quite often, but AMRAAMs behave very unrealistically in DCS. The real world ones on the other hand have proven very resistant to beaming/notching ("turning 90 degrees"), even the old A-models.

Turning out the full 90° actually finishes with the missile 100° from your nose, not 90°. The rule isn't 90° turns, it's 90 degree to the missile vector. It doesn't matter if you're climbing, diving or just deck turning. What matters is the missile is most likely to lose you at 90°. Increased success can be had by also rolling the canopy 45° away from the missile to hide the tail fins and reflect most of the radar energy into the sea, which doesn't have radar detectors as of 2020.

@@jamielonsdale3018I know this is a three year old discussion, but what about drop tanks? If you roll 45° away from the missile, it would still leave the drop tank in full view, which is a rounded metallic surface. Would it be better to face the canopy or the drop tank towards the threat? Moreover, has it been tested in DCS whether or not radar reflections from surfaces are actually realistically modeled?

This is a fair point... But Joker was also bleeding energy with the firing aircraft still pursuing from the 6 o'clock. In pretty much any similar scenario, Cap was going to have an easy follow-up shot. Now I am hardly an A2A expert, but I would think gaining energy in a dive away would give you more options to deal with the pursuing plane after you defeat the first missile.

I think you mostly need to rely on the huge number of chaffs/flares available and eventually turn to the beam. But I don't have much experience.

Im a bit rusty, but assuming co-alt and head on: 0ft = 6 miles 20kft = 11 miles

Ben dont feel bad. I've had DCS for about a year (albeit just now playing more often) and I'm just now getting to where im not cannon fodder to AI anymore

Its simulation so Couple months to year Know your plane lol

About a decade, and I’m still learning. I play mostly SP but am planing on changing that in the near future. Don’t feel bad, these things are really hard.

@@sasquatchycowboy5585 lol ive been playing year now, and yesterday i again learned a new thing Always suprises me🤣

Yup - so do I.

Spamraams*

I have no idea. My tacview doesn;t actually work. I can review files but not create them. V annoying.

@@grimreapers ok

It does, you just have to react sooner that you could to pull this off

@@Demonukey for that reason alone it is unrealistic

we'll have to wait until Auto JDAM drop is avail for that.