(WIP) Modern IR (FOX2) Missile - History, Performance & Discussion

Ty for the correction, guess that was a myth

technically r-73e but should be the same thing no? wait i might be dumb
image

idk what you are trying to say here

because that was a rough calculation for how slow the missile needs to be to pull that hard, which in this case is lower than the stall speed of many of the planes that carry it

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just did another calc for how much it would have to pull for 100m radius if assuming 1000 Km/h speed and its almost 80 Gs

so I think its safe to assume radius is more than 100m

Could be wrong, but i think its saying they were testing that as a type of thrust vectoring, and that they used the R-73 body for the test, not that its the actual method of thrust vectoring used.

I dont think ive ever seen a pic of an R-73 with a gimballed exhaust, its always been jet tabs as far as i can tell

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r-73e study.zip (1.4 MB)
it seems to be assuming that it can do 12.7 degrees, not that r73e necessarily does 12.7 irl?
Not entirely sure tbh, like it uses jet tabs sure but the 12.7 degrees seems to just be either randomly picked or assumed that the r-73e does

12.7° does fall within the max limits of jet tabs could acheive(±15°), jet vanes can theoretically reach ±10°.

That being said, the pic you showed definitly doesnt look like the jet tabs seen on the R-73. It looks like a gimballed nozzle added onto the tail end of the missile, and since its a simulation, im guessing they were just testing different TVC control methods and used the R-73 body because that its a TVC missile their country uses.

yeah looking at the source again, it definitely seems like that. no idea why they chose 12.7 degrees, need to get a translator better than whatever the hell apple ships with their phone

IIRC, the 60g figure is only for when the motor is burning.

Source is good to be shown, was actually used in a bug report (thats super cut and dry, but gaijins dragging their feet on) Community Bug Reporting System

Fin and jet vane deflection are 38deg irl.
image

In-game their max is ~25.7deg

Which is considerably more than the 25deg for the MICA you posted (and removed?)

Also of note, the MICA is overperforming in fin AOA in-game according to your source.

Spoiler

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The thrust deviation is underperforming (2.25 ° vs 5°), the fins deflection is overperforming (±31.62° vs ±25°)

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am i dumb or is that both tvc angle + fin aoa, so technically those 2 things should add up to 38, not that its 25 degrees for fin aoa only.
either way its missing at least 10 degrees aoa

I have no clue what you’re talking about.

The source is extremely clear:

  • Fins and jet vanes have a 1:1 link ratio (they move the exact same amount)
  • Fin/jet vane deflection angles are ±25° (currently ±31.62° in-game)
  • Thrust deviation (from 25° jet vane deviation) is 5° (currently 2.25° in-game)

ie: Fin AOA in-game is overperforming, thrust vectoring in-game is underperforming.

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no im talking about iris-t there (being 38 degrees total). i replied to

not the other comment.
i understand the mica one, that ones clear now.
i shouldve said 25.7 so that it was obvious i was talking about iris-t or quoted that reply instead of just replying to it, my bad

Oh, no, thats specifically talking about the AOA of the fins/vanes, not the missile

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no i understand that. I’m saying you’re saying that the fin aoa should be 38 degrees, when I’m trying to say that shouldnt the fin aoa AND the tvc angle add up to 38 degrees, not that it should just be 38 aoa for fins of the missile.
Im not talking about the missile aoa

No? Its talking about the rotation angle limits of the fins. The fins and the vanes are linked, usually in a 1:1 ratio. You dont add them up???

This might explain it better:

Jet vanes are basically just the fins but instead of acting off the air around the missiles, they act on the exhaust gas from the missile

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no. i mean like this →
example mica → its fins are able to provide 25 degrees aoa, and then its thrust deviation from the tvc is 5 degrees right.
so that’s 30 total degrees. Although now that I’m writing it out it’s like why tf would you add the 25 degrees of the fin aoa to the 5 degrees of thrust deviation.
YK what. forget i said anything for the past hour lmao

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Yeah, you dont add them together at all. The fins arent “providing 25° of AOA” the fin and vanes themselves can only move 25° in AOA.

25° of vane AOA provides 5° of thrust deviation though.

yeah, it sounded better in my head until i actually wrote it out lmao

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