There is only one deltaV definition.
Mica does not have the same motor fuel mass as amraam…
Well if the only deltaV definition is what you said then it isn’t the same as a “speed increment” without further definition
This is all very ambiguous
Why would you add 300 m/s ?
Do you seriously believe that much is lost to drag alone ?
MICA is a missile, not a torpedo… it doesn’t move under water
Was a rough estimation. Direct says its speed is about 170m/s too low, so the dV is going to be > than that, so its atleast 1200m/s no?
Well when i tried yesterday with the Dv of 1000m/s (removed the drag on statshark) it gave me a force of 27.7KN
When i reapplied the Cx of 1.65 currently used in game, the speed dropped to mach 2.65, so a decrease of around 100m/s, certainly not 250m/s
A drop of 250m/s is out of the question anyway, the missile would have to get a drag worse than the draggiest IR missile, and would be unable to reach 80km up high or 20km in VL.
The MBDA source that states 750m/s shouldn’t be taken too seriously, the range on it is wrong for example, and MBDA is notoriously known for downplaying the stats of its missile, especially when they are new (the documentation statin 750m/s was quite old)
so 100m/s is lost to drag, but its also underperforming by 150m/s per direct support, see where im going with this?
There is no range figure on the MBDA Presentation slide, and its from 2012, MICA enter service in 1996~ right? So “quite old” is doing some leg work there. The current source being discussed is from 2000 and isn’t the actual motor specification rather its the requirements for the project which would place the actual time frame for this specification to before 1996. Any evidence to suggest that was met?
I am willing to forward a specification as evidence, so long as there is something even if its somewhat vague to confirm it was met or close to.
Even if i low ball and say 1200m/s, this would require a fuel mass of 45kg…
no, because it was specifically refering to MICA VL, which entered service much later
You can forward the 750 all you want, the consequence would be an inability of the missile to hit its range considering the absolutely insane amount of drag you would need to slow it down from a 1000m/s dv
In other words, primary sources are going to contradict each other
Its possible it is referring to the speed of mica-ir-vl, which would be draggier. Even then, with a drag index of 2.4 it would be too fast, so we can potentially discount that source all together. Assuming that isnt the true value and 1000m/s wasnt achieved(however i doubt this myself).
Ahh cheers
Or maybe, just maybe, Gaijin does not get its physics right
Drag being a fixed value is the first clue
Rafale being a whole 0.1 mach different at same altitude, same IAS in knots compared to an IRL photo is an other
Or that yes… equally possible.
Wait a minute drag is constant with speed in game?
no, it varies with speed and altitude. Just not exactly how it does irl, for example the tropopause around 36,000ft isnt modelled.
Ah I was getting really worried for a minute
Constant with what then though
as in the only variables we see in the files for drag are a single drag coefficient, length, width and weight. Induced drag is done seperately.