This model gives us a top speed around M3.5 for a practical launch.
1 Like
I find that number highly unlikely, perhaps for empty (without fuel) missile.
Considering size of the missile, platform which is the launcher mounted on, mass of the missiles with the similar size etc mass is more likely 240kg which is mentioned by some UA sources.
Woah 240kg? No way, remember standard IRIS is 87kg, no way is the motor going from ≈30kg to ≈180kg.
1 Like
240kg sounds much more like the SLX weight.
2 Likes
Where did you get that number or idea from?
Because the standard IRIS-T is not even 90kg altogether.
Are you saying that the shroud and propellant are supposed to triple the weight of the missile?!
That’s like 150kg for the added motor alone as added weight.
That seems really excessive especially given that the SLM isn’t nearly big enough to realistically store this amount of weight.
2 Likes
That is actually what I was thinking regarding both FB10A and SLM, cause I did some volume calculations, compared them to IRIST and FB10, and concluded that either they should be lighter than they are right now, or they carried more fuel than rn. Seems weird how they just have like a bunch of weight for no fuel.
SLM certainly does not carry enough fuel.
Yeah, IDK why they have like 67kg of extra weight and only around half is fuel. I was initially looking at FB-10A cause it has even worse performance. I think either fuel is too low or it is too heavy.
1 Like
SLM is longer then SLS and has double the diameter, therefore at least triple the volume of the SLS.
So 240kg kind a stick.
But therefore I asked for explanation why the at least three times bigger missile weights less then double of its smaller counterpart.
Double the diameter!? Are you OK?
2 Likes
127 vs 180mm. Not double.
It does have a lot more volume that I do get.
If you actually run the calculations, the IRIS-T SLS has a fuel density of 1.185 kg/L, and if you then multiply that density with the approximate volume of the IRIS-T SL expanded motor section (9cm by 239cm) , you arrive at at about 72kg of fuel, which is higher than the 63kg Gaijin has given it, but within the margin of error of napkin math
1 Like
Ok, my bad, then it is double the volume of the SLS…
Fair enough…
Relax the entire luncher gross mass (with the missile in it) is about 380kg and it can be almost seen in here (red box) so there is no way for the SLM to weigh 240kg.
4 Likes
why that?
140 kg for metal box seems reasonable.
it’s mainly a server desync issue anyway
dice roll, as you said
I launched a poll
If you guys care, maybe you can use a vote to show your disappointment?
IRIS-T SLM is 140kg.
240kg sounds like the weight of missile + container
well i guess not even that, should’ve read the rest of the thread here lol