dark light

moon_light

Forum Replies Created

Viewing 15 posts - 781 through 795 (of 913 total)
  • Author
    Posts
  • in reply to: F35 debate thread- enter at your own risk. #2272767
    moon_light
    Participant

    Ignore the Cuda nonsense, it’s better to carry Meteor externally,
    & perhaps 4 aim-132 internal in A2A configuration

    :confused: why it should carry meteor external ????

    in reply to: F35 debate thread- enter at your own risk. #2272770
    moon_light
    Participant

    If I imagine a group of F-35s flying at 800 km/h intercepted by two pairs of J-20s or T-50, zooming in at M1.5+, engaging the targets with medium range IR-guided missiles (which the F-35 completely lacks, BTW) and running away, then I give the Lightning II quite slim chance to disengage, let alone fight back…

    flying faster also mean higher IR signature so these J-20 , T-50 will be detected by EOTS and DAS from longer distance , flying faster also mean you must turn a bigger circle , and FYI the range of missile against faster target is longer ( if the situation is head on 😀 ) , and while F-35 lack IR guide missiles it have DIRCM so it can defeat even the most modern IIR , EO missiles ( flares is quite useless against sth like aim-132 or python-5 )

    in reply to: F35 debate thread- enter at your own risk. #2272792
    moon_light
    Participant

    Yes, The FA18 has great high alpha handling (or at least high alpha entry), the charts cant show that… or they can but its hard to make it easy to read (plotting instant and sustained turns was borderline too much). I did another compilation where I converted the F15Cs sustained Gs into deg/second @15K and it was fairly close in the mach 0,4-mach 1,2 region.

    Here are the links again:
    F16 http://www.f-16.net/f-16_forum_viewtopic-t-5260-view-previous.html
    F15 (this one correlates pretty ok but not exactly to my old chart) http://forum.keypublishing.com/showpost.php?p=1599867&postcount=108
    F18 http://www.f-16.net/f-16_forum_viewtopic-t-13383-postdays-0-postorder-asc-start-30.html

    Basically this is needed for turning.
    1 Large control surfaces with high maneuverability (to force the plane into high alpha).
    2 Low wing loading (to get tighter turns according to Newton)
    3 High thrust/weight ratio to compensate for the energy bleed from the high AoA or turn rates.

    1 Gives great nose pointing abilities and this is what makes the F35 look good. The other two parameters are needed for the classic dogfights and this is where the competition looks better.

    So the F35 will be excellent at pointing its nose to at the enemy and fire away its 4 missiles. If the enemy survives it will most likely end bad for the F35, as concluded in the Australian inquiry.

    Btw, does anyone know how to put users on ignore? Irtusk and some other trolls look like promising candidates to test that function on.

    The attachement is Draken getting 100 deg + Alpha in the 60s

    1) in WVR if the f-35 still have missile left , it will not turn much , may be not even turn at all as it have JHMCS and DAS
    2) with the new CUDA missile , an F-35 in air to air mission can carry 3 Meteor + 4 CUDA all internal ( not too bad isn’t it ) , and as BAE say , it can also have 2 more aim-132 external on low observable pylon and as the missile have small fin the RCS will not increase very much :confused:
    3 )i think you should check your graph , may be you make some mistake 🙁 , no one ever claim F-15 a better dogfighter than F-16 ( most pilot say F-16 is better at WVR ) , and your chart show something completely different :confused: => not sure how accurate it is about the F-35
    4 ) the Draken in your picture is performing cobra , so it not sustainable (only for 1-2 sec ):confused: i dont think you can compared it with the ability of F-35 to stay at 50 degree AOA

    in reply to: F35 debate thread- enter at your own risk. #2273051
    moon_light
    Participant

    moon_light, by that simple phrase you just showed that you have no idea about basic aerodynamics of an aircraft…

    have you ever heard about things like lift? induced drag? why an aircraft that pulls Gs looses speed?

    In aerodynamics, lift-induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting body redirecting air to cause lift and also in cars with airfoil wings that redirect air to cause a downforce. With other parameters remaining the same, induced drag increases as the angle of attack increases

    http://en.wikipedia.org/wiki/Lift-induced_drag
    i dont really know a lot about it but it think in level fly these only things that matter are area and velocity ( may be iam wrong 🙂

    in reply to: F35 debate thread- enter at your own risk. #2273056
    moon_light
    Participant

    If one of F-35 use the radar, enemy still could jam it, and decrease the range of the radar. Also enemy RWR could detect APG-81 emission.
    But when enemy won’t use the radar, but only RWR, MAWS, IRST, MIDS ( only passive detection- no EM emmision- radar, EW) then ASQ-239(RWR) will be useless in this situation.
    But all this discussion is pointless as we just don’t have acces to real info, as it is classified, and we just don’t know which fighter will enjoy advantage in this kind of situation ;).

    :p i think u try to avoid admitting the obvious advantage of F-35 over fighter like EF-2000 , Rafale , su-35BM
    1) APG-81 is an AESA radar so it is much harder for enemy RWR to detected it compared to normal radar , and it will be even harder trying to jam it ( the range will be much shorter ) , and without enough number of aircraft to triangulate then information from RWR can’t be used for missile launch
    2) trying to jam radar mean send out emission => F-35 can detected enemy by ASQ-239
    3 ) head on detection of IRST against non-after burning target will not be very high ( may be < 100 km ) and honestly i can’t find anything about IRST on fighter use dynamic ranging to calculate the range 🙁 i mean all the IRST on fighter now have laser to measure range except the one on EF-2000
    4) all fighter carry missiles externally will likely to have RCS > 1 m2 => F-35 can track them from > 160 km , while even APG-77 or Irbis-e can only see F-35 from 35-50 km => VLO fighter will have first look , first shot
    5) F-35 have top coat that reduce it’s IR signature , and it’s apg-81 can also be use as a jammer
    however the biggest problem of F-35 is that it carry too little missiles only 4 Meteor in air to air 🙁

    in reply to: F35 debate thread- enter at your own risk. #2273066
    moon_light
    Participant

    F16A vs FA18C/D + E/F at the same altitude with the same speeds is apples vs oranges? The only orange among the apples is the F15 part since I dont have the altitude or version of the airframe. The rest is correct.

    You can sing your trololo song all you want, still doesnt change anything.

    can you link the post instead of the image 🙁 , all the image gone i can’t see any thing , at very high altitude then i think f-15 will have advantage but at low and medium altitude i think F-16 is the best , and F-35 is quite quite close to F-16 which is good enough , btw F-18 while not very good at turning like F-15 , F-16 , it have great nose pointing ability , and all F-35 version also have that great ability too

    in reply to: F35 debate thread- enter at your own risk. #2273133
    moon_light
    Participant

    You do know what instantaneous turn rate is, right?

    The cap for all current fighters is 9G for pilot reasons. The big difference is the sustained turn rate. If you look at my chart you will see that the F16 “matches” the F15 at around mach 0,65. Thats the dotted line that gets chopped off because of the 9G cap.
    http://forum.keypublishing.com/attachment.php?attachmentid=210457&d=1355611494

    But what did the article really say?

    Your quote:

    Yes, the 9G instantaneous load is the dotted line. All modern fighters will have the same line if they are rated 9G. If the flight control system allows one can easily pull more, but that might be dangerous for the pilots.

    Do you see this? The F35C with the best turning capability has a cap for instantaneous turns that is the yellow dotted line.

    Still congruent with both sources. M Kelly compared the B and C versions to the Hornet (Super Hornet?) and called them almost identical in the maneouverability, now we know that the only thing the F35A does better is instant turn radius where it matches the F16.

    Thanks for the update though. Now I have 3 sources that say the same thing.

    sustained turn rate of f-15 is better than F-16 😮 seriously ?????

    The F-15 has a sustained turn rate of 16 deg/s and an instantaneous turn rate of 21 deg/s.
    The F-16 also is far more maneuvrable it has a Max instantaneous turn rate of 26 deg/sec while the best MiG-23 max instantaneous turn rate is 16.7 deg/sec, other turn parameters are the sustained turn rate and load factor at a turn but again the F-16 is superior to the MiG-23 in these too, the F-16 has a Max sustained turn rate of 21.5 deg/sec while the MiG-23ML has a Max sustained turn rate is 14.1 deg/sec

    http://backfiretu-22m.tripod.com/id15.html
    sir i think your graph is completely wrong

    in reply to: F35 debate thread- enter at your own risk. #2273142
    moon_light
    Participant

    Internal mode of the focal plane array an processing to approximate distance to target. Not as precise as laser range.

    quite interesting 😀 never heard of it before , can it be done by any normal FLIR , IRST or only some specific IRST
    and BTW the DAS on F-35 is an IRST or FLIR

    in reply to: F35 debate thread- enter at your own risk. #2273148
    moon_light
    Participant

    How much g can F-35 pull, when fired AMRAAM from internal weapon bays ?
    LM said that it can fire AMRAAM over the shoulder in high g dogfight thanks to EOTS, but why other fighters can shoot AAM up to 4 g from fuselage station and the only wing station is “9 g capable”?
    I just don’t buy this idea …

    http://www.dassault-aviation.com/fileadmin/user_upload/redacteur/Defence/Rafale/foxThree_n11.pdf

    “The fuselage-mounted MICAs
    can be ejected at up to 4 g
    whereas the wing-mounted
    missiles can be rail-launched
    at up to 9 g.”

    Theoretically – how much g AAM should hold to turn 180 deg and kill 9g target, when launch from 9g pulling fighter? We know that the missile will require about five times the G capability of the target to complete a successful intercept. So… -AMRAAM should persist over 50g in this situation. We know that AMRAAM can pull max 35-40g (heavy, no TVC), and only short range AAM ( like IRIS-T) achieve 60g.
    I will be waiting to see AIM-120D over the shoulder shoot in dogfights in reality :D.
    MBDA Mica is more versatile then AMRAAM in WVR , it demonstrate over the shoulder shoot – but not in high g dogfights, I don’t think any current system could do this, and especially heaavy AIM-120D.

    why the f-35 even need to pull any G in that situation ?? , it will just fly in a line and if the enemy decided to follow they will take and aim-120 at their face , and aircraft can’t not always pull 9 G like in theory , they will lose air speed

    in reply to: F35 debate thread- enter at your own risk. #2273152
    moon_light
    Participant

    Can you please translate this into English? Preferably with punctuation & some capital letters.

    sorry my english is not very good it not my first language
    btw i mean if the enemy fighter have modern missile like AIM-9X or Aim-132 along with JHMCS then it doesnot really matter if your aircraft are agile or not

    in reply to: F35 debate thread- enter at your own risk. #2273182
    moon_light
    Participant

    If the Mig-31 were an all round Fighter rather than a pure interceptor than your logic would be quite correct. In fact if we are to only compare One parameter which is the ability to maintain mid-high supersonic speeds for prolonged times then yes the Mig-31 is superior to the above mentioned aircraft …However with the 4.5 gen to 5th gen aircrafts, we are comparing all round a2a fighters, that can handle both the intercept role (High speed, high altitude BVR) as well as the close fighting role (Manuvering WVR)..Even the russians were smart enough to draw a distinction between the Su-27 and the Mig-31, therefore until the Mig-31 becomes an all round fighter, and is a credible aircraft in all the spheres of air combat (BVR against fighters —-> WVR against fighters) we cannot compare the two categories (Interceptors vs all round a2a fighters)…

    i think the problem of the mig-31 is actually it’s huge rcs like a 747 , if it have rcs equal to f-35 or f-22 it could be quite dangerous

    in reply to: F35 debate thread- enter at your own risk. #2273188
    moon_light
    Participant

    I compiled them into one.

    It is the turn rates at various speeds. Dotted lines are the instanteneous turn rate (higher is better) and the solid ones are the sustained rates.

    A lightly armed F16 (like 2 sidewinders) seems to be more agile after mach 1,1 than the F15. (not sure if its the F15A or C).

    At the same time the FA18C and E are lagging in the turn performance. Thats where the F35B and C are when it comes to dogfighting performance. The F35A is slightly better and will stay under the F16As performance.

    So to win the dogfight you need to take the fight to your home ground, F15 has a large one, F16A has a decent one so its up to the pilots to bring the fight to where they excel. Altitude might not be the same but I think its 15k ft for the charts.

    I think it boils down to what version you are flying of resp aircraft. F16 has gone a long way since the A version…
    http://forum.keypublishing.com/attachment.php?attachmentid=210457&d=1355611494

    so you mean f-15 is a better dogfighter than f-16 :confused:
    anyway i dont think agile is an very important when u face sth can use jhmcs and aim-9x or python-5

    in reply to: F35 debate thread- enter at your own risk. #2273191
    moon_light
    Participant

    1)So why the best fighters in the world – F-22A, EF-2000 and Rafale has got supercruise and great performance ? The Raptor pilots said that speed is almos as important as stealth.

    2)Bad weather is below 5km – medium alt, so BVRAAM hasn’t got such a big NEZ at this alt – nowhere near 50km against fast maneuvering targets.

    3) IRST doesn’t need laser range finder to measure the range. For example PIRATE IRST use dynamic ranging and triangulation ( 2 aircrafs with MIDS ) to find the range (DTI 12/2009, “Double vision”)
    I think that F-35, like other fighters in CAP mission will stay at 35k ft and if detect enemy then use AB to go ~ 1,4 Mach and fire AMRAAM. In this situation modern IRST can detect it well beyond 50km (~70-80km).

    1) i really dont think EF-2000 and rafale are better fighter than T-50 , J-20 , F-35 , USA is not stupid they dont spent money on stealth for nothing
    2) a lot of cloud is also bad for Irst , and there also cloud at 50000 fts
    3) what is dynamic ranging :confused:
    4) fighter with RCS > 1 m2 will be track by apg-81 from over 160 km

    in reply to: F35 debate thread- enter at your own risk. #2273193
    moon_light
    Participant

    . My F-35 has six hundred fifty parameters to tell me what aircraft is flying upon me, too bad it does not have a single parameter to tell me how to disengage from a fight with an aircraft that is most likely more maneuvrable and agile than my Lightning II. Well, most likely I cannot kill it but at least I will send a nice realtime video feed via a satellite link with an exact identification of the oponent including its serial number.

    BTW, I don’t quite get the idea of IRST not working in bad weather, that is not entirely true, thermal imagers do work even in fog, cloud or smoke, only with reduced range.

    Note that I am not denying the fact that F-35 is likely the most advanced strike aircraft today.. What I dislike is that it it sold to partner nations for air superiority and air defense duties.

    i personally like su-35 and f-16 than the ugly F-35 however i dont think it really a bad fighter
    i mean the thing is that it is stealth so the enemy simply dont know where it is to attack so how agile they are are not so important
    infrared emission is almost like visible light , what the light can’t penetrate they can’t penetrate so they quite useless in bad weather , and yes while they can still in theory working , the range will be reduced significantly from 100 km -> just over 5 km

    in reply to: F35 debate thread- enter at your own risk. #2273196
    moon_light
    Participant

    1.Sources please. According to aviation week & space technology 03/19/2001 Super Hornet has around 1sq m frontal RCS.
    I also read in some magazine that EF-2000 in clean configuration has frontal RCS below 1sq m.
    I don’t think SH has any advantageous in this area.

    2.ATFLIR isn’t IRST. It can’t search volume of the sky like radar. F-15K/SG has the only US modern IRST in service right now ( I don’t know much about F-16 blk 60, but it probably have just FLIR? ).

    F/A-18E/F:
    “0.1 m2 class”, the declaration of USN in 1999~2000.
    Rafale:
    “1/10 of the frontal RCS of MIRAGE-2000” (about 0.1~0.2 m2), declared by Dassault in 1999.

    information on the internet are quite varied , so iam not very sure
    btw i think any modern FLIR have air to air function , for example like the sniper-xr that have been re packet as EOTS and DAS can also be used as IRST
    http://i16.servimg.com/u/f16/12/26/75/01/eotsjs10.jpg
    http://www.difesanews.it/wp-content/uploads/2007/03/f35_12.png
    http://img.photobucket.com/albums/v229/DragonWarriorX/DAS.jpg

Viewing 15 posts - 781 through 795 (of 913 total)