dark light

stealthflanker

Forum Replies Created

Viewing 15 posts - 361 through 375 (of 781 total)
  • Author
    Posts
  • in reply to: Rafale 2018 Thread: Europe's best Eurocanard #2179218
    stealthflanker
    Participant

    What’s the diameter of RBE-2 ?

    in reply to: RuAF News and development Thread part 15 #2179411
    stealthflanker
    Participant

    That’s what we did for Earlier flankers. but now, the banking screws up simply can’t compromise and we have no real flying F-5 now.

    in reply to: RuAF News and development Thread part 15 #2180363
    stealthflanker
    Participant

    In Indonesia case, it had nothing to do with US sanctions. Indonesia could have loaned from Russias Banking system.
    But they choose not to, instead they now don’T have to pay extra interest from payments loan.

    additional problem is that we can’t appropriate it for something else. Remember our Kilo deal ? It would be Russian offering export credit for it. Thing is.. people in top brass want to do something else with it (say buying Flankers) Which of course not very welcome to the creditor.
    —-

    This is another budgetary problem.. when you want to buy something but not really appropriate necessary funds.

    http://www.janes.com/article/77624/singapore-airshow-2018-indonesia-su-35-programme-at-risk-of-delays-over-commodity-dispute

    Russians asked for rubber crumb. The counter trade basically accounts 400 M USD as the commodity from total 1.1B USD. This basically equals to 186000 metric tonne of rubber. We can fullfill it Problem is that the budget for buying that commodity from our farmer doesn’t exist or have yet to be exist. Our ministry of finance is known to be strict and have reprimanded MOD for sudden request for KFX funding.

    Cancelling the flankers looks possible which i kinda regret as we basically will lose ample of capability that western offerings does not match (except F-35A but that years ahead) We will also stick with sub 40 dB power aperture product fighter radar except when KFX enter service (Then this may not be 40 dB) or somehow we could acquire F-15 with AESA which no less expensive than the Su-35’s.

    in reply to: IRIAF F-14 flown by soviet pilots #2180643
    stealthflanker
    Participant

    Pretty simple. Big aircraft w/a big radar, aircrew of two, guiding for long-range AAMs. The Soviets even mounted them in the same place. R-33/AIM-54, same size, same weight, same purpose. All coincidental?

    How about looking at the requirements ? Both designed to intercept cruise missiles and handle multiple targets. Those two requirements alone dictates large radar and long range AAM. Add ECM and there you go..put IRST. I wonder how Soviet can come up with other form of solution for handling cruise missiles.

    —-
    Tom Cooper.. nice but i have my doubts since he said Iraq has Kh-22 missile.

    in reply to: IRIAF F-14 flown by soviet pilots #2181807
    stealthflanker
    Participant

    O-o

    Don’t see anything on F-14 made it to MiG-31’s. Zaslon has nothing in common to AWG-9 and so is R-33’s.

    in reply to: Korean Aviation Industry Thread #2184091
    stealthflanker
    Participant

    So the future looks good for KF/IF-X program

    https://www.koreatimes.co.kr/www/nation/2018/01/356_243400.html

    Defense Minister Song Young-moo ended his three-day Indonesia visit, which focused on expanding bilateral defense cooperation, Wednesday.

    On Tuesday, he met with his Indonesian counterpart Ryamizard Ryacudu, with both sides pledging to make concerted efforts to resolve North Korea’s nuclear provocations peacefully.

    They also agreed to continue strengthening their technological partnership for the ongoing KF-X project under which both countries jointly develop the fighter jet by the first half of 2026. They also reached a consensus to expand the partnership in other areas such as co-developing next-generation submarines, according to the defense ministry.

    On Wednesday, Song paid a courtesy visit to Indonesian President Joko Widodo, asking for the latter to continue giving close attention and support to Korea’s defense industry.

    The Indonesian president praised Seoul’s efforts to offer a series of reconciliatory gestures to Pyongyang to improve inter-Korean relations ahead of the upcoming PyeongChang Winter Olympics.

    He said he will visit Korea this year, and promised to build additional momentum for enhancing mutual ties in security and defense.

    in reply to: RuAF News and development Thread part 15 #2186721
    stealthflanker
    Participant

    The 3rd country or Russia itself need to find alternative financing scheme for the deal to proceed. Our flanker “counter-trade” scheme is one means to circumvent the US sanctions. We cannot buy the flankers directly using usual means of financing. Some nations like India and Arab nations however probably unaffected.

    in reply to: Israel Air launched Stunner (Python-6) speculation thread #2188348
    stealthflanker
    Participant

    It can intercept target moving at Mach 7.5. not its top speed. The real velocity of the missile itself could be less.

    in reply to: Israel Air launched Stunner (Python-6) speculation thread #2188576
    stealthflanker
    Participant

    Does it really “AESA seeker” ? Especially if it’s mm wave band. Does cross section image of the missiles available ? The fire control radar tho is indeed AESA. s far as i browse it’s a dual mode seeker but i found no real mention of it’s being an AESA.

    Performance tho. This subject on weight and launch profile but it seems that it would do the same range at least as the AMRAAM-D.

    in reply to: RuAF News and development Thread part 15 #2188661
    stealthflanker
    Participant

    If you zoom in the Egypt Mig-29M2’s middle wings, you will see them look like a 2-piece-wing, not complete (1-piece) wing. Even thought they fix the wing, 2-piece-wing will not be strong like 1-piece-wing.

    You cannot know this by just eyeballing. Need a real structural strength measurement.

    in reply to: Korean Aviation Industry Thread #2189911
    stealthflanker
    Participant

    How do you forget something like that? And how will the issue be fixed? Does this year’s budget include the payment?

    Hopefully. The recent Korean president visit here likely also include rescheduling.

    I didn’t know you are from Indonesia. can you tell me the logic behind Indonesia’s acquisitions?
    they buy a small amount of a variety of aircraft. seems like ea logistical nightmare

    It is actually start with simple terms “Don’t put all of your eggs in one basket” We have been experienced arms embargo from both “west and east” block So our planners see it fit to “spread the risk” by having multiple types. Unfortunately tho this is not really supported in terms of financial or willingness.
    Western system like F-16 may enjoy better packages like having maintenance center here BUT Russian system may offer better performance, lower price and options to gain ability which western system does not provide (e.g supersonic anti ship missiles, true cross eye jammer in shape of Sorbitsya or SAP-518 and RVV-BD). The situation is made alot more severe by inter-service rivalry, unwillingness to actually integrate the Russian system into ours (Thus resulting with our flankers have to be heavy maintained outside our nation)

    in reply to: Korean Aviation Industry Thread #2190747
    stealthflanker
    Participant

    and the budgetary issue is not because we don’t have the funds.. The MOD actually FORGET to arrange that.. as a result the MOD got reprimanded by Minister of finance.

    in reply to: RuAF News and development Thread part 15 #2190776
    stealthflanker
    Participant

    Phazotron better step their game up this time. I assume new MiG’s got larger fuel capacity and potentially more cooling to support higher powered AESA TRM.

    in reply to: RuAF News and development Thread part 15 #2190834
    stealthflanker
    Participant

    remember that when speaking about the Irbis E’s 400 km range vs 3sqm , we are speaking about the range in track while scan mode.
    And as far as i thnik , radars may acheive their maximum range potential in velocity search mode , ive seen articles claiming that range in velocity search can be much longer than TWS. So maybe the Irbis E could go further than 400 km in such a mode , for 3m2.

    Then again we have Maximum instrumented range where radar is only “allowed” by the designer to declare detection at certain range.

    I don’t think it’s more than 400 km.

    in reply to: Chinese air power thread 18 #2191703
    stealthflanker
    Participant

    For third generation, read fourth, since the Chinese came to the game late. Fighter implies a target between 1 and 5 m^2, which suggests a practical range between 130 and 200 meters. Other sources suggest the KLJ-7A is on par with the APG-81, which, if you accept it, also suggests unbelievable performance.

    As to air-cooling vs water cooling, water cooling is about 24 times more effective at transferring heat energy. This implies that the energy output is neutered by up to 96%. I’d also point out that even American GaAs radars are all liquid-cooled; the vast majority of fighter radars employ liquid-cooling, not air-cooling, due to the high need for heat dissipation.

    My point is more that the oddity is that you are getting outrageous range figures, alongside reports of air-cooling, which suggests GaN, which supposedly generates less heat and is more heat tolerant.

    How do you know GaN will generate less heat compared to GAaS ? Remember that GaN would have much higher power output compared to GaAs module hence more heat. Using GaN for low peak power is basically a waste of potentials with no real benefit especially if one desire to use existing infrastructure.

    Why you ruled out the possibility of GaAs module with low power being used ? I worked out my own calculations and found the module are like 2-3 Watts peak power based on air cooling. Hell you can even check it somewhere in this thread or see my post at F-16.net . You can even see the equation i used. Something which you never reveal in your supposed calculation.

    http://www.f-16.net/forum/viewtopic.php?f=38&t=53650

    My conclusion that it can do 191 Km range vs 5 sqm with 50% probability of detection. While interview with designer of the radar reveal 170 km range. My conclusion was either my calculation overpredict stuff OR the radar have less module count than 1000.

    About the power estimation, the irbis-E has an effective power output of about 10 kW due to efficiency losses from the PESA design. Assuming the same aperture, you’d need about 55 kW to achieve the stated Chinese claims in their paper. Divided by 800 modules, you’d need a power output of 68 watts peak power per module to achieve the 450 km range vs 0 dBsm.

    Are you really use the radar range equation for this ? And again, why you discount the fact that Irbis and Bars is in fact Hybrid. They don’t work the way “traditional” PESA like Zaslon or AN/APQ-164. They have their receiver in the antenna. Their noise factor on receive is thereby same as the AESA’s.

Viewing 15 posts - 361 through 375 (of 781 total)