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Witcha

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Viewing 15 posts - 376 through 390 (of 1,232 total)
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  • in reply to: MMRCA news thread 10 #2318883
    Witcha
    Participant

    There´s no radar blocker on the Typhoon, it uses S-shaped ducts to block the engine.

    Do you know of any illustration that shows the duct shape? Because externally, both ducts look pretty linear(being joined together in a line with the engines) in a similar emplacement as on the F-16.:confused:

    in reply to: MMRCA news thread 10 #2318901
    Witcha
    Participant

    Indian Air Force wants to sign contract by January-February with deliveries starting in 2015. Under this plan, HAL will start the deliveries of Indian produced MMRCA fighter jet from early-2017 onwards.

    That’s truly ridiculous.:eek:

    Seven years?! Why would it take that long for HAL to set up an assembly line? Can’t they assemble the initial batches from kits?

    If it’s a question of not having enough manpower/production capacity, then can’t the govt set aside the Socialist monopoly policy for the IAF’s sake and let a private sector firm licence-build the MMRCAs in partnership with the winner?

    This is what AK Antony must have meant when he said those ancient MiG-21s would keep flying till 2017. No relief in sight thanks to this drawn-out circus of procurement.:mad:

    in reply to: Russian Space & Missile[ News/Discussion] Part- 4 #1795502
    Witcha
    Participant

    I don’t think so. In the past, some S-300 batteries were deployed with both Clam-Shell and Tin-Shield radars at a regiment level in addition to the battery level engagement radars. Later both radars were replaced by Chesse-Board (battery level) and Big Bird (regiment level).

    In addition what can happen with a malfunction? If some radar broke, the data-fusion station will still be able to operate with data provided by the other two. That means redundancy and robustness. Off course the cost will be a few more trucks and operators but, I think, it is worthwhile.

    And in contrast we have the Patriot and THAAD which make do with just one radar to handle everything.:D

    Yeah, helps to cover all possibilities. If the Nebo-M is for battery level, what does the S-400 use at the regiment level?

    in reply to: MMRCA news thread 10 #2319213
    Witcha
    Participant

    Does the IAF specify LO/stealth technology as a criterion for MMRCA? Because it seems to me that between SPECTRA and the S-shaped ducts the Rafale has a distinct advantage over the Typhoon there.

    I’ve read unconfirmed rumours of the Typhoon having a radar blocker in its air intakes, but I’m disinclined to believe them given it’s never been mentioned in any brochure or formal literature that I read.

    Witcha
    Participant

    Surprised the Vietnamese didn’t take the time to translate some of the labels on the switches. I know some air forces just go with the OEM language, but there are some that do the translation

    US attempt at an Mi-24 rival, the S-67
    http://www.aviastar.org/foto/sik_s-67-s.gif

    Looks a tad too skinny for a transport role. I can’t imagine more than 5-6 troops fitting inside.

    in reply to: Russian Space & Missile[ News/Discussion] Part- 4 #1795529
    Witcha
    Participant

    Components of Nebo-M
    http://www.sdelanounas.ru/blogs/8384/

    http://sdelanounas.ru/images/img/sdelanounas.ru/images_photos_5457.jpeg

    On extereme left is X-band AESA/PESA radar , center is a L-Band and right side is a VHF band radar further away is the command post.

    So you will have 3 different band with different frequency looking at the target and the command post will be doing the sensor fusion from these 3 source , would be a tough one any stealth to beat.

    Hopefully they would add a bi-static radar to complete the list.

    Wowee.:eek:

    Although having a set of 3 huge radars following every SAM battery sounds a little cumbersome.

    Is the Nebo-M system available for export?

    in reply to: MMRCA news thread 10 #2319843
    Witcha
    Participant

    Why did Eurofighter present ideas for a naval Typhoon then? Who is the potential customer?

    Perhaps there is some uncertainties around the N-tejas, and perhaps having a backup solution could be wise?

    The IAF has only issured a Request for Information on fighters. This may or may not result in an actual tender.

    in reply to: Pak-Fa Thread episode 19 #2319846
    Witcha
    Participant

    If you’d paid attention, @ the Farnborough Air Show 2010, Pogosyan declared “the Indian version [of the PAK-FA] will differ [from the Russian] in software only”, however the Indian side obviously pushed for a greater workshare (given that they were de facto bank-rolling the project), and that stance changed to:

    As thing stand, the 2-seater will be a true JV, with HAL having full access to design, development and IPRs (hence Sukhoi training their engineers), though the engine may have ToT limitations. The 2-seater (~48) will also be manufactured in India from the ‘ground-up’ like the latest indigenous MKIs. AfaIk, the IAF’s single seaters (~166) will be produced in Russia. So do try to keep up, Witcha.

    Also, you might think the Indians are setting up a GaN HEMT production line in St. Petersburg to manufacture a active array for the FGFA’s radar…….the rest of us think it’s a JV for cellular infrastructure and broadband WiMAX base stations…and stop asking absurd questions about G-suits and PAK-FA’s flight performance.

    You can drop the ‘Holier-than-thou, dumbass!’ attitude here and now. Some here may get into the game of pages-long heated arguments and name-calling. I have no interest in the same.

    Nothing I said contradicted that the two-seater would have Indian involvement. I merely pointed out that
    -If it were like the MKI it wouldn’t be an ‘Indian’ development so much as a version of a Russian plane customised to Indian requirements with some Indian and Western components
    -It’s numbers would be limited compared to the wholly Russian-designed single seater that would comprise the bulk of purchases

    And nor did I say the GaN chip production was intended for the PAK-FA’s radar. Just pointing out Russian interest in GaN tech and Indian capability for the same.

    Lastly the question about the PAK-FA’s aerodynamic capabilities was a legitimate one, though I could have phrased it more competently.

    That’s all.

    in reply to: Pak-Fa Thread episode 19 #2319894
    Witcha
    Participant

    Is there proof that F-22 (What is F/A-22?) can handle sustained 12 G turns in service?
    The maximum designed load is 9gs.

    Also, you are using a report sourced to Ria Novosti as a reliable backing for PAK-FA characteristics? Hmmmmmmm

    It was an example. The Raptor’s official operating limits might be 9-10Gs but it’s capable of going upto 12. Hence the liquid-filled G-suits which are designed to increase pilots’ tolerances. This news has been known for quite a while.

    http://www.f-16.net/f-16_forum_viewtopic-t-8027.html

    in reply to: Russian Navy Thread #2029669
    Witcha
    Participant

    Well, looks like the death of the 667 Project is at hand. More luck to its successor.

    http://balancer.ru/forum/punbb/attachment.php?item=248716&download=1

    The second of the project, the Kronshdadt. Not going to be completed any time soon, if ever.

    http://izvestia.ru/news/507580

    Fleet rejected the subs, the St. Petersburg will be the only one to be in service, and as a research/development vessel, used for testing separate complexes.

    I take it this pretty much dooms the Amur-1650 in the export market?

    Or are Russia still going to offer this vapourware for the Indian Navy’s Project 75I tender?

    in reply to: Chinese Air Power Thread 16 #2319996
    Witcha
    Participant

    are you sure? its 21Kn for Al-222 vs RD-33’s 81Kn

    Performance
    Maximum power
    (SLS, ISA, δin=1)
    Thrust, kgf (flat-rated up to tamb=+30oC) 2,500
    Specific fuel consumption, kg/kgf∙h 0.64
    Maximum power
    (H 5,000 m, M 0.6, ISA, δin=0,97)
    Thrust, kgf 1,450
    Cruise
    (H 10,000 m, M 0.6, ISA, δin=0,97)
    Thrust, kgf 300
    Specific fuel consumption, kg/kgf∙h 0.875

    Dimensions, mm 2237.7x860x1093.

    My bad. I took the words in the last article at face value(‘In its primary 22,000-pound (10-tonne) version, this engine could replace Russia’s Klimov RD-93 on the FC-1 and its Pakistan air force version the JF-17 Thunder.’):o

    After searching a little it appears the afterburning version of the AL-225 can produce upto 4200kgs of thrust. They could compete with an RD-93 only in pairs, so re-engining the JF-17 is far-fetched.

    http://www.deagel.com/Fighter-Aircraft-Engines/AI-222-25_a001253001.aspx

    in reply to: Pak-Fa Thread episode 19 #2320014
    Witcha
    Participant

    Given maneuverability is supposed to be one of the PAK-FA’s main advantages over the Raptor, how many Gs is it capable of handling? The F/A-22 can reportedly do up to 12G turns, and its pilots wear a special liquid-filled G-suit to cope.

    Reading about the T-50 it doesn’t appear to me it is designed for any more than 9G, from this report …

    http://idrw.org/?p=5043

    in reply to: MMRCA news thread 10 #2320017
    Witcha
    Participant

    You’re not going to see a naval Rafale in Indian Navy colours. Its already slated to be operating two types of aircraft in the MiG-29K and the N-Tejas. If a third type is to be acquired (for its second indigenous aircraft carrier) it will be fifth generation aircraft – a naval PAKFA if the timeline is promising or the F-35C.

    The PAK-FA would likely be considered too large for Indian carrier ops. Even with a Kuznetsov-sized IAC-2 the number of aircraft that could be packed on board would be limited to 20 or so.

    The IAF will probably go for another medium-class fighter. That leaves either the F-35 or a possible naval AMCA.

    But all that is several years away anyhow. The 45 MiG-29Ks and 40 Naval LCAs are more than adequate for the Vikramaditya and IAC-1, and IAC-2 is unlikely to enter service before 2020.

    in reply to: Chinese Air Power Thread 16 #2320268
    Witcha
    Participant

    interesting, it’ll use a Yak-130 engine, but with after burner.. more and more the L-15 is looks and IS becoming a super Yak-130!

    I’m more interested in the fact that Ukraine finally has a viable fighter engine of it’s own. One that may serve as a cheaper alternative to re-engine old Soviet-built fighters…

    Does anyone have any specs for the AL-222-25F? It has more thrust than the latest version of the Klimov RD-33; what are its dimensions and weight?

    in reply to: MMRCA news thread 10 #2320274
    Witcha
    Participant

    The most realistic figures I found to compare rafale and typhoon flight costs per hour was :

    -35 000€ for the rafale
    -39 000£ for the typhoon

    But there is such a variety of different figures which includes so different things that it is hard to find a good comparison.

    I personally find it an exercise in futility to compare ‘lifecycle costs’ of different aircraft given there are so many different ways that figure can go in real life even for the same air force.

    Does it consider exactly how much time the aircraft will be flown per year given various circumstances(In one year there is need for more training sorties and exercises, in another year India is at a wartime situation etc), when and what upgrades/repairs/overhauls it receives and how often, when and what new weapons it will get et al?

    There is no ‘accurate’ figure you can come up with for operating or lifecycle costs, and even if you could, why would it be the same for India as it was for current users?:rolleyes:

Viewing 15 posts - 376 through 390 (of 1,232 total)