Aim120 skill issue

No, because you are a devout american main with a very narrow mindset

Okay cool, since the R-27ER can compete just as well, how about we move all R27ER platforms up to TT with the R-77 carriers. Sounds perfectly fine to you, right?

you forget r27er is so unrealistically buffed its better than any sarh missile and can compete with arh

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I understand that, but its still a SARH, even if its the best in game.

you do whatever mate, could really give less of one, however I am saying you should go and play some of these things before having an opinion on them

Interesting, so you don’t think they should go up, but at the same time don’t think they have a disadvantage?

They are fine where they are, because the downsides of the ER are the launch platforms, if i could have 2x ERs on my Barak II that’s 2 very easy kills compared to the loadout of the Mig-29s, this is down to mainly russian radars but also the lower chaff counts, all together the only thing keeping them where they are is the ERs, same with the flankers to some extent

Half the time your TWS will lose lock randomly or refuse to relock the right target because the refresh rate of the russian radar is atrocious.
It kinda works on the SMT because you can change the TWS to a narrow pattern and focus one target. On the Su27 with the absolutely garbage radar it has right now… no, not really. The only thing you’re hitting is bad players. The R-77 hit those too.

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Has anyone been able to confirm that ARHs swap to missile radar at pitbull range even if you still have an STT lock?

IRL the missile would use the stronger radar return, right?

They go from datalink to active. There’s no difference whether STT/TWS is used, only difference is the much higher frequency of data updates though dunno if its modelled

why would it home on the fighter radar’s signal, the point of it is to go active at certain distance

Unrealistically buffed in what way?

Yes, goes from Datalink+IOG to TRK in sensor view

iirc, instead of the 2 stage engine the ER has irl, in game is an all-at-once stage engine

R-27ER has both booster and sustainer in-game.

And there just happens to be an abundance of those overzealous, frankly stupid players at top tier who got their exclusively with a premium and bomb grinding

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its kinematics are unrealistic, its impossible for it to be as agile as r27r yet it is in game

kinematics are good as far as I know with the information available. Feel free to test

Spoiler

R27ERrangechart
R-27ER-flytimechartnb1

What it is blatantly incorrect is its magical guidance, see below

Guidance, it’s complete fantasy. Allowing an abuse of firing situations where it would have quite poor reliability by design or simply not work by design.

1. You shouldn’t be able to launch, drop lock and relock in any phase. For not one, but several reasons.

  • When you fire the missile, the radar goes from Tracking mode( RNP ) to illumination mode ( DNP ) which provides either the radio correction and signal the missile homes in during SAHR. If you drop lock or it is lost, the radar set does NOT return to DNP mode but simply to RNP. Therefore no radio correction or homing signal if in SAHR phase.

  • During DNP mode and radio correction phase of the missile, the radar keeps a track file for the target. Once lock is dropped, say goodbye to that track file.

1 bis. dropping lock to lock another target
Not possible due to the reasons above and that the missile will go stupid by the change is position vector of the plane and the new doppler correction. The data flow to the missile must be continuous.

2. It only works in 2 phases currently when it should be 3.

-SAHR, which we have
-INS + Radio Correction, which we have
-INS only, which we don’t have.
Assuming a fighter target. The lock on range is 25km.

  • IF the launching distance is less than 25km, it will go SAHR directly off the rail.

  • IF the launching range is between 25km and 37.5km ( 1.5x the capture range) the missile flies with INS only without radio correction till it is at 0.8x the capture range, 20km. This is hail mary basically hoping the target doesn’t maneuver much and within the missile seeker parameters (±6° and ±150m/s [ 0.5 Mach]) from the expected location and the target’s doppler. So don’t expect much with hitting a target that maneuvers a lot within around 10 seconds it takes the missile the get within 20km to the target leading too poor reliability.

  • IF the launching range is above 1.5x the capture range, we have INS + Radio Correction

3. Seeker direction lock during INS phases

Just before launch, the radar/missile calculates the position of the target and of the missile when it switches to the SAHR phase. As the INS requires a reference system, it uses the ANTENNA’s position as reference system. Knowing that the reference system should be stable and it knows the geometry during the acquisition phase. The antenna is locked on the direction the target will be when the missile reaches the acquisition distance.
Like you see on the picture below, at time 0, the plane fires an R27 at a plane from right aspect. The missile’s seeker puts itself in the direction the target it’s expected to be when it reaches the distance to switch to SAHR, t=1. The missile maneuvers between 0 and 1 but the seeker remains aiming to that particular direction regardless. Captures it if its within parameters and then just SAHR.
image

Now what happens when the target maneuvers. It depends on the phase it launched at.

Lets look at the INS only phase, launched between 25 and 37.5km.
IF the target at decides to maneuver during this phase, the missile doesn’t know and the target it can get out of the seeker search zone and won’t be able to lock him, leading to a trashed missile.
image
Even if the target is within seeker’s beamwidth, the target’s expected doppler might be completely different. Say the target was supposed to be at 500 m/s at t=1 but it maneuvered such that it’s speed will now be 300m/s. Due to the speedgate of the missile searching ±150m/s from the expected doppler( between 650m/s and 350m/s) it won’t see the target meaning it’s trashed or it will lock another target if it’s being radiated and within the seeker’s FOV.

Now what happens during INS + Radio Correction phase, beyond 37.5 km.
The missile maneuver but as the missile’s seeker is stabilized in space to the direction. It may or may not see the target. It would depend on the geometry a lot. Here when it attempt to capture, the proportional navigation constant increases like 4x to help move the missile acquire the target and once it does it’s drops down to normal levels.

4. Radar Roll limit
Radars like the the N001 on the SU27 would drop lock by rolling more than 90°. Say good by to a hard crank.

5. datalink updates

From what I assume and very likely its the mig 29 manual

В связи с тем что информация по крену при радиокоррекции обновляется с частотой 18—20 Гц, сигналы радиокоррекции правильно выдаются только при угловой скорости вращения истребителя не более 60°/с (при применении ракет выпуска до июля 1986 г. — не более 30°/с). По этой причине не обеспечивается наведение ракеты Р-27ЭР на цель в инерциально-корректируемом режиме при выполнении истребителем противоракетного маневра типа «кадушка».

Since the roll information during radio correction is updated at a frequency of 18-20 Hz, the radio correction signals are correctly issued only when the angular velocity of the fighter’s rotation is no more than 60°/s (when using missiles manufactured before July 1986 - no more than 30°/s). For this reason, the R-27ER missile is not guided to the target in the inertial-corrected mode when the fighter performs an anti-missile maneuver of the “barrel” type.

rolling above certain roll rate may induce errors, a miss the in the data will mean that the missile will be looking somewhere else rather than the plane. It would expect a different doppler than what the plane really is giving.


All these leads to abuses of it’s fantasy guidance such as these, doing stuff that it’s not remotely even possible to the point of even switching targets. But sure, other missiles can’t even do stuff they can do IRL stuff because reasons…Makes you think who gets ‘artistic’ liberties biases and who doesn’t.

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kinematics are good as far as I know with the information available. Feel free to test

look at r27er and r27r, r27er is heavier and longer while having identical wings
its just physically impossible to make something heavier and longer and still have it turn the same

The ER has much more thrust to compensate.
Look at the AIM-7, the 7 is heavier yet has shorter minimum range than the E and in this case the 7E reaches higher speeds faster than the F.
It may be though it is harder to gauge, either way min Range is the least of your worries, fantasy guidance allowing shots where it would not even track is.

how does more thrust help something longer with the same fins turn the same?