Iris-t slm

Linked it.

If you do the most basic math:

Current modelled top speed of IRIS-T SLM:

710m/s, basically Mach 2.

Time to target 60 seconds.

Distance travelled at Mach 2 after 60 seconds:

Roughly 42km.

You see the issue here?

Even if the missile flew Mach 2 for the entire duration of the flight and did so in a perfectly straight line the missile would barely reach it’s effective range in time.

Now the distance to the target was “more than 30km” away, if we assume it was 31km and if my napkin math is correct than reaching 12km altitude somewhere during the flight increases the distance travelled to between 37km-44km.

That means the missile flew 37-44km in 60 seconds which gives an average speed of nearly Mach 2. Not a max speed of Mach 2.

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i tried that aswell (current speed to 30km ) and time to 30km from the source, its about 60% difference, if you were to aply 60% to the 710m/s currently in game, o look we get ~1100ms and 60% is kindoff an underestimate considering our target isnt moving at all while theirs is

but getting an accurate speed from this math is impossible, however 60% is not just a simple error

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I don’t. The source states maneuvering target, it doesn’t state in what direction, it doesn’t state at what speed.

See this post:

It doesn’t say that though. it never states how far the missile flew, only at what distance the target was at when fired.

Play a simulator that doesn’t place national bias above realism.

Okay, let’s humor that thought as I can see the truth in it.

If we assume that “jet drone” was flying at pretty much max speed of the fastest regular military drone (around Mach 0.4) it would have travelled roughly 8km during that time when flying perfectly straight at max speed. Since the target did evasive maneuvers I would assume the target didn’t fly straight all the way but let’s stick with that.

That would again mean a horizontal distance travelled of roughly 22km. Total distance between 27km and 32km.

Median speed would then be 450m/s - 533m/s on average which is still Mach 1.3 - Mach 1.55 on AVERAGE.

Currently the missile is flying at M 0.4 at 15km distance.

(EDIT: Messed up my math a bit with only 10km height this time. Should be around 1km more on the distance and a bit higher speed, not going to redo the numbers as the difference is going to be within like 5%)

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Target drones are never anywhere near mach 1. You’re arguing that the missile went to 12km altitude just to hit something at 10km from the launch site.
Is there anything you won’t say to protect Russian cas dominance?
Realistically the drone was very much subsonic, launched on when it was at 30 and hit when it was at 20-25.

They aren’t the ones defending it. They are making some good counter points to our sources that we need to explore. They aren’t making any claims.

We have a flight time to hit a ~m0.4 target when it was at 30km. That is more than enough info to make an honest estimate, the nitpicking you’re seeing from these people is anything but honest.

That then sounds like more of an issue with to much drag and/or to little engine power than a top speed issue (for in-game purposes). That is however generally a better argument. My main issue is that it’s all still user calculations and a lot of guesswork/assumptions. Even at the lowest end of estimations those are to my knowledge not accepted at all. The source is to vague to be used, the range you could get out of it is so wide that it might as well say nothing. Even if the bottom of the range is above in game values it’s still to vague to be used. It’s like those that say “above x speed”, well how much? would x+0.00000001 be accepted by the community? likely not at all. it’s better to then have some semblance of concrete numbers (which with modern systems are… well… hard to get)

I get that.

I also think it’s frankly…a kind of stupid decision to not at least listen to basic math.

If even the lowest estimate is far above ingame values then they should at least consider it.

Especially since right now, the missile is incapable of reaching 30km at all ballistically. I means what’s the point of saying you have an effective range of 40km when you can only engage targets up to 15km away?

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i found this
grafik

so mach 0.65 our asumptions that the target is flying right at the launcher is still questionable considering the fact that it is “evading”

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This:

I’m trying to show how it can be read and interpreted, and if it isn’t unambiguous then it likely can’t be used. I’ve actually taken part in trying to help find sources for this, i want it changed as well but i also see Gaijins side and as such trying to find better sources and point out to others how best to think like Gaijin and find better suited sources.

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Theres also the DO-DT25 drone which goes 250kts instead of the 450 kts of the DT45

I think they have for some of the sources, there are some that have been forwarded as suggestion i think.

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at this rate with the devserver closing tomorrow ig its just gona be another “it is what it is” but considering the HIGH speed testing target the SLM would still not be able to engage the target at 40km out with its current flight performance (while flying directly at the launcher)

My question is the following:

What would Gaijin do if they only had the effective range to go by?

They apparently don’t have Thrust or Weight of the missile and they don’t have the burn time. So we basically know nothing. This means that it’s all guess work and boy have they guess wrong.

The current version is FAR short of even reaching the effective range at all, let alone a maneuvering target.

We really gotta hope for 2nd dev or dev continuation, if the radar gets Look Forward - Back Scanning and the stated <1s target refresh it would be miles better.

Also reduced smoke would be a very good buff, just hope they implement them.

The issue is that we shouldn’t have what we currently have as the starting point. The only sources available logically point to a speed of Mach 3 and range upwards of 40km. Where did Gaijin get their initial “sources” to get the missile to where it currently is?

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First source here is likely no good, it's third party that links to other sources

I just found this but i don’t know how trustworthy the source is, and it might actually be a third party source perhaps but i’m unsure (though it is written by a Swedish military analyst):

Screenshot 2025-06-08 225514

(https://dettyskakriget.com/wp-content/uploads/2024/05/fangad-i-spelet-natbok-1-version-5.1.pdf) Page 140

Edit:
Just found this as well:

Screenshot 2025-06-08 230747

(https://www.cleardesign.se/tidskrift/arkiv/forsvarsutbildaren-05-2015/forsvarsutbildaren-05-2015.pdf) page 21

Edit 2:
one more:
Screenshot 2025-06-08 233208

(https://www.portail-ie.fr/wp-content/uploads/2024/03/Defense-antiaerienne.pdf) Page 3

Edit 3:
Screenshot 2025-06-09 110236
(https://bin.yhdistysavain.fi/1601152/L9PyPMQ7AT9jfDiArSjt0UJan6/Ilmatorjunta%202_17.pdf) page 35

Previously known:
Screenshot 2025-06-09 111817
(https://www.luftvarn.se/vlv/1503.pdf) page 10

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