dark light

mig-31bm

Forum Replies Created

Viewing 15 posts - 1,591 through 1,605 (of 1,759 total)
  • Author
    Posts
  • in reply to: F-18 stealth weapons pod ( EWP ) #2232255
    mig-31bm
    Participant

    Good luck toting that big pod around at 9G…. never mind. Just another instance to point out why F/A-18E/F should have used F100 or F110 rather than gold plated fuel hungry F414. The F100’s tend to be way cheaper to slightly cheaper dependent on version. The F110 in naval form was already flying at the cost of F414.

    I think f110 and f100 is bigger than f414 so they won’t fit

    in reply to: F-18 stealth weapons pod ( EWP ) #2232260
    mig-31bm
    Participant

    As he said – FOR NOW!

    LM has openly stated that 2xAIM-120 per bay is just what the USAF/USN/USMC contracted for, and that an upgrade to 4xAIM-120 and 2xAIM-9X per bay is just a matter of paying for integration and clearance trials, having been “designed in” when the bay shapes were designed.

    2xAIM-120 + 2xAIM-9X + 2×1,000lb JDAM per bay is also on LM’s “can do” list.

    I really haven’t read any where say that f-35 weapon Bay was designed to carry 2aim-120,2aim-9x,2jdam, that simply impossible, it cannot even hold Meteor without clipped fin , they never said anything about 2aim-120+2aim-9x per Bay either, the best they came up with is plan for 3 aim-120 per Bay which is still inferior to f-18 weapon pod

    in reply to: F-18 stealth weapons pod ( EWP ) #2232359
    mig-31bm
    Participant

    The F-35 holds 4 missiles (for now). The F-35 carried 2 2K bombs plus 2 Aim-120 missiles..I don’t see what the issue is for this comparison

    i was compared each F-35’s weapon bay with 1 EWP
    1 weapon bay can only hold 2 aim-120 , or 1 aim-120 and 4 SDB while 1 EWP pod can hold 4 aim-120 or 2 aim-120 and 6 SDB , the question is why the EWP pod is quite the same size as F-35 weapon bay but can hold alot more weapon

    in reply to: different RF missiles vs IR missiles #2232401
    mig-31bm
    Participant

    BTW wasnt mid course update , command guider and data links are basically the same thing ? what the different between them ?

    in reply to: different RF missiles vs IR missiles #2232457
    mig-31bm
    Participant

    You are incorrect in thinking that all RF-guided missiles had LOAL capability. If you think about this for a moment, if the seeker of a missile is going to operate in LOAL mode, what guides the missile in the earlier stages of flight? LOAL requires that the missile has two forms of guidance, one of which is used to steer the weapon to the point where the seeker can lock on. Early radar-guided weapons such as AIM-7 Sparrow did not have a second guidance system.

    oh i see , but wasnt all the active radar guider missiles can do LOAL even the one without INS , while very few IR missiles can be used in LOAL mode , what the exact reason ?
    EX : AGM-65 can only be used in LOBL mode while AGM-114 can be used both in LOAL and LOBL , both kind of missile dont have data link or anything other than their main seeker
    AGM-122 can be used in LOAL while AIM-9 can only be used in LOBL

    there are some reason ( i dont know what it is ) make it much harder for IR missile to do LOAL , this very very obvious especially with the air to ground missiles one
    for example when you compared the AGM-84A/B/C/D vs AGM-84E
    form same family of missile , both have INS , both are fire and forget, both can be used in LOAL mode , however :
    the AGM-84 A/B/C/D can be guider to target location by INS and then it’s radar will lock on target automatically which mean aircraft can launch the missiles and then flee right away , while for the AGM-84E , after it have been guided to the target location by INS , it must be locked on to target manually by pilot through data link , which mean pilot must stay in danger zone much longer
    radar guider Agm-84

    The missile flies at a low cruise altitude, and at a predetermined distance from the expected target position, its AN/DSQ-28 J-band active radar seeker in the nose is activated to acquire and lock on the targe

    vs
    AGM-84E

    the AGM-84E flies a complex path to its target using its inertial system, and during the final 60 seconds of the flight it is controlled through the data link (using an AN/AWW-13 pod on the launching aircraft) using imagery from the IIR seeker.

    http://www.designation-systems.net/dusrm/m-84.html
    .

    The purpose of flares is to deceive a missile that has already locked onto the aircraft. The newly ejected flare makes the apparent IR target seem stronger. As an angular separation develops between the flare and the target, the idea is that the missile seeker will be fooled into tracking the flare rather than the target.

    so basically the missile thought that the flares is the part of the aircraft it locked on to right ? ( i thought that the seeker see 2 target and choose the hotter one )

    in reply to: How Iron curtain , AMAP-ADS work #2232462
    mig-31bm
    Participant

    Computers think in time slices. Detection, processing, and output all take time slices. The system uses a rapid scanning laser beam to steer its reaction device, the terminal and most time dependent aspect, and detonate the appropriate reactive pack. Electro-optical and MMw devices detect the original incoming object, scan it, and either arm or leave asleep the terminal laser fuse. The computer brains of the system are distributed throughout the array to minimize reaction time.

    oh i see what you mean , but iam asking about different thing , here is what they say about the system

    countermeasures create a non-fragmenting strong directed energy beam, collateral damage to nearby troops or civilians is minimized

    http://en.wikipedia.org/wiki/AMAP-ADS
    my question is , what exactly is that “non-fragmenting strong directed energy beam” never heard of any weapon using that apart from laser or EMP

    in reply to: How Iron curtain , AMAP-ADS work #2232513
    mig-31bm
    Participant

    Laser moves through fiber optic 300,000x faster than electron through a conductor. It’s a laser fuse, not laser weapon.

    I don’t really understand what you mean by laser fuse, can you explain it clearer, what it have to do what the defence system I listed

    in reply to: How Iron curtain , AMAP-ADS work #2232599
    mig-31bm
    Participant

    All very interesting…but what does this have anything to do with modern military aviation?

    well not really but it interesting nonetheless

    in reply to: How Iron curtain , AMAP-ADS work #2232601
    mig-31bm
    Participant

    http://forum.keypublishing.com/showthread.php?124220-Laser-Shoots-Down-Missile

    but it actually not laser ,laser weapon often need very big equipment , not to mount on a APC like that , also laser often take 1-2 sec to heat up and destroy target , but the system iam talking about here do it in like micro seconds , not to mention if it was laser weapon , we will see turret and lens of it was laser weapon but both Iron curtain , AMAP-ADS lack that, also in their demonstration we actually see some thing like a energy ball destroy the project and we all know laser dont do that

    in reply to: different RF missiles vs IR missiles #2232660
    mig-31bm
    Participant

    Mainly necessity in terms of range. Historically all missiles were frontal hemisphere only and more of less dead ahead at that. IR missiles were generally short range, so only needed LOBL, whereas RF missiles were long range so required LOAL.

    An exception would be the R-40T/TD employed on MiG-25s. Could well be the missile that scored the only F-15 kill.

    Seems the R-24T on MiG-23s was another early LOAL IR missile.

    but i mean early IR , IIR missiles cannot even be use as LOAL , target must be locked before launch , even then AIM-9X block 1 was unable to look target after launch without software update , my question is , if they can be fool by flare then it mean they can aquire target by their own , why cant they do LOAL

    in reply to: Dual rack and SDB load out #2233651
    mig-31bm
    Participant

    A Gripen carrying >10,000lb of stores wouldn’t have a very useful range.

    sth like f-15E, F-111, su-27 or F-35 probably do it better

    in reply to: Surveilling Miniature Attack Cruise Missile (SMACM) status #2233654
    mig-31bm
    Participant

    If it works . . . so why was it cancelled? Maybe it didn’t work.

    could also be lack of funding

    in reply to: Dual rack and SDB load out #2233728
    mig-31bm
    Participant

    There might be a weight problem. BRU-55/57 racks are designed for 1000lbs class weapons… a BRU-61 with 4 SDBs weighs 1460lbs.

    Those Gripen cgi loadouts are purely fictional at the moment.

    but SDB II and SPEAR III weight alot less than SDB I
    SDB I = 285 lb
    SDB II = 204 lb
    SPEAR III = 176.37 lb
    so weight wouldnt be a big problem

    mig-31bm
    Participant

    The reason that it has greater range is that SPEAR has a 50lb warhead and SMACM had a 18lb warhead.

    oh i didn’t notice that still prefer range over warhead size , 370 km range will greatly benefit 4 gen fighter or bomber with high load like b-1

    in reply to: Dual rack and SDB load out #2233749
    mig-31bm
    Participant

    BRU-61 is a four unit pyrotechnic ejector rack whereas BRU-55 (USN) and BRU-57 (USAF) are two unit pneumatic ejector racks. BRU-61 would be limited to a pair of AGM-65 due to the overall length of the LAU-117 rail. The real question is why do the F/A-18 and F-35 fighters support BRU-55/57 and not an equivalent of the USAF BRU-61? Their pylon looks like it could theoretically support such a rack using the third lug.

    Gripen NG artwork shows both four and six SDB racks. The F-16 has demonstrated three Griffin per pylon. I’m surprised there isn’t an American six SDB rack. Does BRU-55 sport a centerline pair of lugs for a third ordnance? Even if they could only take smaller width ordnance like SDB or AIM-120, it saves drag versus more pylons.

    actually F-35 can carry the equivalent of BRU-61 , allow it to have 8 SDB or SPEAR III per weapon station ( not sure about f-18 never seen it have anything like SDB , have no idea why ) the question here is that since BRU-55 (USN) and BRU-57 can carry 2 LAU-117 rail ( total 2 AGM-65 ) will they be able to carry 2 LAU-120 ( total 2 aim-120 ) or 2 BRU-61 ( total 8 SDB )

    btw did you refer to this art work ?
    http://www.militaryparitet.com/editor/assets/new/Files4/Gripen_NG5B25D.jpg
    the 6 sdb rack seem like a MER rack , sadly USA dont use them anymore
    it seem that the Gripen NG can carry 2 NSM per station as well
    https://lh3.googleusercontent.com/-UnK8CIXb1a8/SlKYiCW8JPI/AAAAAAAALi0/KR_eWL8EUOU/s800/gripen-ng-2.jpg
    BTW anyone know whether BRU-55 , BRU-57 able to carry 2 NSM as well ? i mean they can carry 2 JSOW obviously but it not quite the same as NSM

Viewing 15 posts - 1,591 through 1,605 (of 1,759 total)