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garryA

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Viewing 15 posts - 601 through 615 (of 948 total)
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  • in reply to: Russia moving tac air troops to Syria #2203801
    garryA
    Participant

    i was always in favor of the more exotic widow and boeings frog instead of f35…

    Ehh , how is that relevance to your statement ?

    in reply to: Russia moving tac air troops to Syria #2203812
    garryA
    Participant

    hehe it appears to be that ‘stealth’ is not what its advertised to be. Poor lockheed Martin :(…. poor f22

    Nothing happened yet and you are already acting like they shot down some raptor. FYI F-22 is hardly even used in Syria compare to others type.

    in reply to: ECM pod can reduce RCS? #2203820
    garryA
    Participant

    You’re funny. Okay, the AIM-132 diameter is larger by 6 mm (BTW, how much of this applies to the propellant ?). But what about the MICA being 200 mm longer ?

    Well, i just put the numbers (160 mm diameter +310 mm length) vs ( 166 mm diameter +290 mm length) into this http://www.online-calculators.co.uk/volumetric/cylindervolume.php, and the result is that AIM-132 has bigger internal volume, you can argue neither missiles is exactly like a tube, but then then it applied to both design, so… Moreover, Mica has a TVC and data link, also a bigger warhead so again, not saying that it is 100% true that aim-132 will carry more fuel, but it wouldn’t be really a big surprise if it does. How much that can translate to range is another matter as i said be4.

    in reply to: ECM pod can reduce RCS? #2203968
    garryA
    Participant

    he should also notice that with almost no aerodynamic controls the ASRAAM is pretty useless once all its fuel is burned (and it does at a high pace): it won’t translate its kinetic into an effective manoeuvre. On the contrary the MICA will still be able to manœuvre once it has burn its fuel even further extending its reach vs the ASRAAM.

    Why do you repeat what i said???

    in reply to: ECM pod can reduce RCS? #2203972
    garryA
    Participant

    The ASRAAM is a sprinter using its fuel to reach mach 4 as quickly as possible while the MICA rocket is more focus on range. One is doing a sprint and the other one a marathon. Both missiles have a very different way of burning their fuel. So it is not all about size etc

    Didn’t they change from boost-sustain motor to fully boost to increase missiles range for AIM-120 family? (i remember the problem with boost-sustain motor is that fuel is often not fully burned)

    in reply to: ECM pod can reduce RCS? #2203978
    garryA
    Participant

    Do you really think the AIM-132 carries more fuel rocket despite the MICA being 27% heavier, or is that wishful thinking ?

    Well, yes, Mica is heavier but it also have massive control surface area ( probably 10 times more than AIM-132) , and along with that a TVC and data link system too. Then AIM-132 has bigger diameter too. So it wouldn’t surprise me if AIM-132 carry more fuel

    garryA
    Participant

    All aircrafts are not Sukhois.

    So sukhoi aircraft use magic to generate lift? Ffs

    garryA
    Participant

    what it has to do with dbw in Sukhois.

    It has to do with all aircraft, how they generate lift.

    in reply to: ECM pod can reduce RCS? #2204034
    garryA
    Participant

    Kinematic wise, AIM-132 can probably fly further than MICA based on how much rocket fuel it can carry. On the other hand, Mica has much bigger wing surface area so it should be controllable at lower speed than Mica, hence likely longer effective (controllable) range

    garryA
    Participant

    and you know it from where?

    Do you even know what is CLmax?

    garryA
    Participant

    It’s a digital fbw

    Digital fbw does not change CLmax

    garryA
    Participant

    er, no, on the very first page of your link you have the graph posted by GarryA which I haven’t seen before..

    Don’t know which thread I’ve read it in, but the difference struck me at the time, which is probably why it remained somewhere in my memory

    I would say that wherever thread you read it from, or whoever told you, it is likely that they took it from that website. Personally, i cant any official source that state 27 degrees/second sustain turn rate for Rafale.( not saying that it cant happen if you deplete the fuel load and have no weapons, but i think it unlikely. And in same situation Mirage would turn very good too)

    garryA
    Participant

    Do you have a source for either of those ? it hard to believe that Rafale sustain turn rate is even higher than F-16 instantaneous turn rate at sea level

    i would assume it came from here
    http://dailycaller.com/wp-content/uploads/2016/01/Screen-Shot-2016-01-22-at-5.09.51-PM-620x396.png
    http://dailycaller.com/2016/01/22/american-gripen-the-solution-to-the-f-35-nightmare/
    look like whoever wrote the piece just put turn rate of various aircraft at different altitude and speed together , and call it a table comparision. If you pay attention , it look like sustain turn rate of F-35 is taken at 15k feet while of F-16 is taken at sea level , drag index 0 , f-15 value also look like it is taken at 15k feet , value for Rafale , Typhoon , Gripen , F-22 on the graph are basically ass pull and have no support evidence.

    in reply to: ECM pod can reduce RCS? #2204370
    garryA
    Participant

    Si how does the missile know where to look accurately if it can’t lock on a target off-boresight before launch ?

    The HMD give it the direction of the threat , IR sensor on WVR has very wide FoV

    How can the HMDS give it enough data ? How could angular information bé satisfying when it doesn’t give target aspect and a proper velocity vector ?

    This is a short range engagement , so missiles can fly a direct path to target instead of climb to higher altitude , there is also very little lead intercept to do at short visual range , so angular direction alone should be sufficient

    in reply to: ECM pod can reduce RCS? #2204442
    garryA
    Participant

    LOL
    The HMD is a mean to designate an off-boresight target (by looking at the target to select the corresponding track), which is often seen as more convenient than having to play with HOTAS stuff. So there is a point to mention the HMD, by contrast with any fighter that doesn’t support it yet, but there’s almost no point to mention the need for a solid tracking for a HOBS shot because that’s a basic prerequisite.

    I think you are the one who read too much between the line here, i see no where do they mentioned that they acquired target by radar before turning away in Python-5 video but you keep insist that they got a track before turn aways, then there is also HMD, if the purpose is simply to be a little bit more convenient than HOTAS then there is no point mentioned it, they may as well said their Python-5 allow 360 degrees shot, no need to even talk about HMD ( since it obviously doesn’t matter)

    Beside, MBDA still doesn’t claim that the helmet mounted sight alone (no other sensor involved) can feed a target anywhere around the aircraft. They claim the HMD can feed a target, period. It happens that in such a case, the target must be either in the frontal hemisphere for the seeker to lock on before launch, or the target must be tracked by other sensors before being designated (track selection) with the HMD (or any other mean, for that matter), at which point the track informations (or better, an interception point) are fed to the missile’s INS so that it can reach a position where it would lock onto the target.

    Once again, you’re reading too much between the lines.

    MBDA claims that their AIM-132 can receive targeting information from aircraft sensors such as radar or HMD or it can also act as an IRST, basically they considered HMD as a sensor ( since it does give angular direction) , no where do they mentioned that HMD only works in LOBL or that it need another sensors to work along with it. And even in case of frontal hemisphere LOBL, if target is outside FoV of radar then the missiles Infrared sensor locking into target doesn’t generate range or velocity information either, as passive sensors, it only generate angular information which is exactly what the HMD will provide when pilot look at target and pulled the trigger

Viewing 15 posts - 601 through 615 (of 948 total)