Iris-t slm

This, I Havent seen any claim of that

I think (this is just me doing logic and guessing) you could layer the fuel by first poring an outer layer of slower burning fuel and once that is set (or partially set perhaps) you could poor a second inner layer of faster burning fuel. That way you could get a booster/sustainer with solid fuel.

Maybe you should contact Diehl Defence and sell the Idea))))

dont know if that is usefull:

I googled. There is a patent of similar thought from the 1980’s lol XD

Edit:

Yep, i was correct ^^ (but this is getting off topic)

Screenshot 2025-06-12 220146

https://apps.dtic.mil/sti/tr/pdf/AD0684023.pdf

Haha, I love stuff like that. Fascinating

Gaijin has every thing they need at this point to create a more accurate representation of the SLM. We can’t meet their source requirements for many specifications but I think it is logically obvious at this point what a mostly accurate SLM representation should behave like.

If they want to “dumb down” the SLM for balancing requirements then that is fine but they should communicate that.

The right thing to do would be to make it perform realistically and then just make the missile self destruct at 18km to impose an artificial range limitation.

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https://www.youtube.com/watch?v=eHRyv7ARb5M this exists but SLM probably doesnt use it

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Tbf, militaries dont need to have all the hard numbers, or really any of them, publicly stated. They tend to send bids in with the relevant info and the countries will trial the systems then pick which they want.

If anything, its weird military companies put out relevant info on the system, even if its faked to some degree. Its likely more for a stock performance and/or public perception thing.

Its inconvenient for us to try to find info on something with good opsec, but its likely better for the manufacturer and countries using the system.

As for why countries like ukraine are publishing some numbers through news orgs as seen with the below sheet, thats likely due to the fact that a lot of the aid they get is dependent on public perception in the west, so they likely converse with the manufacturer about what they are allowed to publish info-wise to boost popularity/perception of the system with western audience without it being directly from the manufacturer.

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Primary sources will be thrown in the trash after being shipped to the russian MOD anyways. Lets not pretend gaijin cares about modelling this missile accurately, they simply dont want to believe anything beyond the idea that it sucks. Its why theyre so quick to nerf it using bad sources, but refuse to buff it regardless of what info is provided.

They quite literally actively ignored the word “laser” in primary info on the seeker, multiple times, and then closed the bug report.

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Speaking of, has anyone even tested if the missile can reach 20km altitude? Pretty sure it cant hit a stationary target 20km above it.

It can’t, I’m pretty sure some of the boys in the server tried it out, it currently stalls out at around 12 km or so. 10 km seems to be about right from their calculation.

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Oh btw, anyone enjoying the fact that when modelling the Pantsir S1, gaijin clearly went with the assumption that the 18km range stated for the 95Ya6 was its effective range, but that when modelling literally everything else, the stated range is “only for targets flying straight at you at very high speeds”?

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It seems that if the missile is to only climb, it can reach 20km. But against any maneuvering (or rather fast moving) target, it will be much much lower. That 10km calculation is in itself a tad nonsensical, it assumes that the missile can not coast anymore beyond 15s, whilst flying at max speed for the entire boost duration? A lot of altitude can be gained still after the 15s burntime, coasting off it’s maximum speed (that ~M2.0) in low density air.

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I don’t think it’s performing differntly from the missile on the dev at least. When I use this thing in a normal launch, it hits similar performance to seen on the dev (just shy of M2.0 at 15s, dropping to subsonic at 12-13km).

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Also for funsies, I guess, I multiplied the SLM’s booster figures by 1.5. This gives the engine a total impulse of like 220+ kN, which lines up with the one Janes source mentioned here and more in line with one estimate made here.

With that, M3.05 can be reached and 30km travel distance is reached in 64.6s, which seems quite a lot more in-line with with reality perhaps. Not the best energy still though at those ranges still tho.

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A hybrid-propellant rocket engine could: Solid fuel, liquid or gaseous oxidizer.

So it wouldn’t be wrong to say they lowered the SLMs thrust to 66% of its intended level. Then we can also assume that they increased the drag by the same margin they took from the thrust. Seems all to be way too in line to be a coincedence. They effectivly reduced all parameters (or increased in the case of drag) of the missile by one third (like the G-Overload from 60 to 40).

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I’ve seen sources saying that the SLM has a dual pulse motor which can relight after coasting for a while, but it’s not even worth mentioning when the current gap between the IRL and gaijin model is like the gap between 9X and a 9B

If I lower the drag now, the effects of the thrust increase will likely make it overperform (maybe). I can play around with it a bit more and see to what single % increase (or decrease for drag) I can settle for both thrust and drag and see if it’s suspicioulsy convenient. I doubt it though, but I also like to know where the current rocket engine numbers even come from.

Also is the current weight of the SLM correct? It seems it has about 60kg of fuel right now. Idk if it’s realistic to get 200+ kN s of impulse out of that.

I don’t know where but I could have sworn to read >250 kN for the SLMs missile motor somewhere.
As I stated somwhere above, the normal rules for the rocket motor don’t seem to apply here as they don’t use a standard aluminium propellant but something that contains lithium to a certain degree (deep red flame instead of orange/yellowish).

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There was 1 guy that said he had “sources” but i think he literally just made an ai halucinate or something to get those values.

That could be awfully true xD