R-73 performance in game
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Almost imposible to tell from those photos - you want side on photos at the same angle and if you know the dimensions of the weapons bay or wingtip launchers that will give you a better idea.
I agree. The linked images did not show an verify to me anyting.
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Not really
The motor is the same than a C-7, so kinematically, it wont be a game changer for most aircraft. The main improvements for range will certainly be an optimized flight profile, and a significant increase of battery time. I would guess that for a 50 000 ft, M1.5 launch like the F-22 can do, the main range limiter is not the kinematics, but rather battery/self destruct time.
Bottom line : with the F-22 it will definitely have more range, but with an F-16, probably not a lot more.
I think 100% same. It is a fairytale that you can get 50% larger DLZ generally just flight path optimalization while even previosuly had AIM-120 such optimalization for general TAC fighters. As an engieer I can judge this.
My bet also was on larger battery time because for such larger range even one case demands this. F-22 and target rel. alt difference is different what most TAC fighters have so a different AP course optimalization with longer battery time can do this. AIM-120 size missile likely have only about 90-120 sec internal power support. At low alt this is 100% good but in case burnout speed at 50k with M1.5 launch speed easily can higher a bit than M5.0 with smaller drag what AIM-54 had. So flight time of AIM-120 easly can be higher than 90-120 sec before start do climb down.
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The R-73 (or any missile in FBMS) seems to have unusual characteristics. Since Crusader mentioned “modeled poorly” as this seems to be a topic we have discussed before. At this point, it is up to the devs to whether the missiles in FBMS will get attention or not. It is one of those issues that we all will just have to wait and see.
Well, its complicated.
First you have the issue that people who made the dat file didnt really know what to put in them. Typically, the “Missile Weight” field showing always total weight, when it should be empty weight. But you also have similar things with total impulse, guidance gains, etc. that you can correct.
Then there is the issue of modeling accurately a given RL missile. That is a handful to do : you somehow need to get a ton of aerodynamic, engine, guidance, battery data on said missile, which you almost never have except for very old missiles. If you have a rough idea of what to achieve in maneuverability/range, you can guesstimate, but it cant be 100% true to RL.
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I watched the ACMI yesterday… Mig-29 launched it when MACH 0,35 IIRC…the missile speed was 460 km/h during the turn…that is why it was so tight imo
to AIM 120D … also 2-way datalink is new, so the pilot can selfdestruct the missile now (I guess)
It is not very practical to fight under the pack of burned out Amraams… -
I watched the ACMI yesterday… Mig-29 launched it when MACH 0,35 IIRC…the missile speed was 460 km/h during the turn…that is why it was so tight imo
I watched it too, I think it is the other way around : the missile speed is very low because of the insane AOA it is taking. And the turn is tight because most of the thrust is sideway.
You can have some overshoot in AOA but the limit for AA-11 is 35°, not 70° - a x2 overshoot is really crazy. No idea what happened here :shock:
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but it cant be 100% true to RL.
… fortunately! BMS is a public software. I would be feared to have the 100% rl perfo!
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Fortunately, it doesnt matter. No one can actually confirm how close to being 100% correct it is - and those who can, won’t (for good reasons). Trying to get as close as possible is no problem, so long as only public data is used.
Of course, I am no doubt preaching to the choir here.
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Where is the 35° AOA limit from? (simulator?)
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I did fast search. I like this czech site BTW, but there is no AOA
http://ruslet.webnode.cz/technika/ruska-technika/letecka-vyzbroj/protiletadlove-rs/r-73-aa-11-archer-/Control surfaces angular range - ±30º
R-73 (basic) considered Offboresight 40° (?)
MK-80 Majak-80 senzor wide angle 90°R-73M considered Offboresight 60°
MK-80M Majak-80M wide angle 120°in this discussion guy called “aerospacetech” posted some detailed info, but again no AOA:
http://forum.keypublishing.com/archive/index.php/t-28398.htmlComparison of thrust-vector control systems
Main technical parameters control vanes gimballed nozzle
Maximum side control power in each
channel, (as a percentage of the rocket
motor power output)
13-14% 13-14%
Maximum angle of control device
movement
17º 8.5º
Maximum hinge moment 4kgm 3kgm
Device weight (without actuators) 4kg 3.5kg
Dimensions (without actuators) length 150mm 210mm
diameter 165mm 165mm
Rocket motor output loss when thrust
is not vectored
5% 3%I watched more websites about LOAL, performance etc etc, but no AOA info….
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some time ago I saw a video …there was RL backward shoot and the trajectory was quite crazy in RL…
BTW : ACMI R-73…17,8 G …time 19 sec
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35° AOA limit is from 4.32 game files (the only ones relevant for the ACMI ). No idea how they came up with that.