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Witcha

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Viewing 15 posts - 211 through 225 (of 1,232 total)
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  • Witcha
    Participant

    Regarding the A-50EI, Elta had apparently offered the IAF an A330-based AWACS solution, but the IAF turned it down. I’m not exactly sure what the reason is, but it seems to be that they wanted quicker delivery and hence chose a modification of an existing platform over an entirely new one that would need more extensive testing and validation.

    Which is sad, because in the long run thanks to the TAPO factory’s troubles the A-50EI ended up delayed by several years anyway.

    If the Il-96 did not exist the An-70 might indeed be worth a look, but realistically it has most of the same disadvantages as the Il-476 (some less so, others actually more so!) in the tanker/AEW roles. For these tasks the Il-96 is a no-brainer and it is actually available, so why bother avoiding it so tortuously?

    It’s not that I’m anti-Ilyushin, far from it – I just think the Il-476 is the *wrong* Ilyushin 🙂

    Actually, given the Russian Defence Ministry has ordered a number of IL-96/106 and Tu-204/214 in various ‘special mission’ configurations(SIGNIT, Airborne Command Post etc) that will be in service for decades and IL-96-based solution may still be viable now…

    There are no Russian helos with in-flight refuelling capability AFAIK (and only very few elsewhere), so that is a rather minor disadvantage for the Il-96 that certainly doesn’t outshine its other virtues.

    Agree completely with the rest of your post, though.

    There are no Russian helos with IFR capability precisely because there are no helo-capable tankers. If they had an An-70-based tanker wouldn’t it be a relatively simple matter to add a probe for newer helos like the Mi-26T2 and Mi-38 and retrofit older ones.

    Witcha
    Participant

    The An-70 could actually be an effective tanker and AWACS platform if the RuAF wanted it. As well as the current IL-76-based ones, anyway. Being a turboprop is no disadvantage in itself; the Erieye and the Chinese ZDK-03 both fly on turboprop planes and Elta is even marketing an AWACS based on the CN-295.

    As a tanker it’d have the advantage of lower sustained speeds which would enable it to refuel helicopters as well, like the KC-130 and the A400M.

    And JSR; you clearly have some strong notions regarding the An-70 which you are not likely to give up soon so I won’t argue any more with you on that front, beyond pointing out the obvious fact that the IL-476 would be lucky to even have 150 orders let alone 400. Also that it wouldn’t even exist if political relations hadn’t soured and Russia hadn’t earlier pulled out of the An-70. It was originally the An-70 and possibly the IL-96/Tu-204 that were going to be fulfilling these roles, and the RuAF back then seemed satisfied with it.

    in reply to: Pak-Fa Thread episode 19 #2297556
    Witcha
    Participant

    this is not PS. do you have any idea of how movable inlet ramp looks/work like and what is EXIF? seems that answer is ‘no’ in both cases

    intake ramp on tarmac photo is up, showing faceted walls running straight vertically down to the place to which ramp moves down at cruise flight
    T-50-6 model photo shows intake ramp in cruise, moved down to the max

    Good enough for me, thanks. I’ve been hearing back-and-forth yes-no answers regarding this point for months so I wasn’t convinced.

    That said, I believe at that isn’t really a vertical S-shaped intake like in the Typhoon? Past discussions were to the effect that around half the compressor face was still visible from the inlet, hence why a radar blocker is also planned…

    Also, the T-50-6 model also shows an absence of inlet side vents. Does that mean they’ll be omitted?

    Witcha
    Participant

    JSR, all I have to say to you is this
    1) Everything you say about the Ukrainian economy, wages etc being inferior to the West also applies to Russia. And China. And India. And Turkey. And so on. Yet they all still retain their aerospace industries and capability. I wouldn’t hold my breath waiting for either Ukraine or Antonov to collapse in the next 10 years. Or 30. You can get back to me on this 5 years later when either the IL-476 or the An-70 or both are in service.;)

    2) Turboprops have no future?! I’m sorry, but that is an incredibly ignorant statement. Whether in airliners, airlifters or patrol aircraft there are hundreds of present and future turboprop-powered aircraft flying or in development all over the world. The C-27, the CN-235, CN-295, An-32, C-130J, Y-8, Y-9, P-3, ATR-72, A-400M and An-70, the list goes on…

    EADS, btw, is involved in both A-400M and CN-235/295, and as for Boeing the only military airlifter they’re building at all is the C-17, which will cease production in a few years. Them not making turboprop airlifters means nothing because it looks like they’re due to exit this market entirely.

    in reply to: Pak-Fa Thread episode 19 #2297856
    Witcha
    Participant

    Mr. Wichita I’m not so sure pafka air intakes are straight and also pafka seems to include both carotted dual compression and dsi like a hybrid:cool::
    http://paralay.com/su50/IMG_6410.JPG

    Also all talking about s-ducts but have forgotten -what possibility next generation pakfa engine will have composite compressor and maybes ceramic matrix composites for stator? Me thinks very high!:eek: Remember Pd-14 is russian version of CFM LEAP-X and will have these technolgies. This will reduce weight- saving energy and much increased fuels efficiency. And most important- blocking device will only have to be for managing minimal reflection;).

    I’m pretty sure that pic is a photoshop. The colouring inside the intakes looks like bad CGI.

    The display model in J-20’s pic above clearly shows that the intakes run straight to the engines; no upward sloping seen inside.

    in reply to: Military Aviation News-2012 #2297935
    Witcha
    Participant

    Nope. Their own fighter is meant to supplement the F-35s. It’ll enter service later.

    Seems a little redundant to have two medium-class stealth fighters. Though I guess the F-35 is just their ‘future proof’ option in case the domestic program doesn’t work out as planned.

    in reply to: Pak-Fa Thread episode 19 #2298113
    Witcha
    Participant

    F-23 (not YF-23) was designed to have DSI intakes
    see here
    http://www.secretprojects.co.uk/YF-23%204%20View.gif

    given the shape of its intake, it might end up looking like an F-111 “bump”
    http://www.aviationspectator.com/files/images/General-Dynamics-F-111-Aardvark-060.preview.jpg

    Thanks for the answer. How about an F-16/J-10B style bump? How would that look on the T-50’s inlets?

    in reply to: Pak-Fa Thread episode 19 #2298117
    Witcha
    Participant

    http://www.ufo-contact.com/wp-content/uploads/2011/05/Lockheed-Martin-X-35-JSF.jpeg

    http://www.superrune.com/gallery/images/2001_x35_02.jpg

    This is what I mean. 😎

    I see what you mean, man. But even those prototype F-35s still have a relatively low profile and flat underbody. The canopy I never cared about; it makes a small difference in RCS compared to the rest anyway.

    well there was that picture of a model numbered 56. looks exactly like the 3 pak-fa prototypes, but the engine nacelles are painted.

    http://upload.wikimedia.org/wikipedia/commons/6/66/T-50_%28PAK_FA%29_mo…]

    Ah, thanks. That’s one minor issue taken care of for now(assuming that’s what the 4th one will look like). Hopefully that covering is RAM paint or better yet a composite-based skin like in the MiG-29K.

    Looking at the Flanker models side-by-side with the T-50, I wonder how viable it would be to just put a pair of weapon bay doors in the space between the engines/intakes(as on the T-50) and thereby produce a ‘Silent Flanker’.;)

    Witcha
    Participant

    An-148 is advanced due to 70% of its parts comes from Russia. where Myanmar -148 got crashed?. .

    So the Ukrainian parts are crap?:rolleyes: And since when do parts decide the capability of an aircraft manufacturer? It’s their own design and development. If they wanted Antonov could source parts from countless Western manufacturers instead, but it’d mean moving away from their traditional vendor base in the ex-Soviet region and push up costs astronomically.

    And the best plane in the world can crash, so it means nothing. A number of Russian and Western airliners have crashed at some point or the other including the Tu-204.

    It is not just funding/Politics but Ukraine demographic crises are 6 times worse than Russia in year 2011. No prospect of funding to turn around it.

    There will be simply no skill people available for An-70 production line in year 2014-2015 in reasonable quanities. As i said Ukriane cannot remain independent between two blocks.
    That’s debatable. There are plenty of unemployed Ukrainian youth to train, and plenty of defence/aerospace professionals in want of work. Many of them even work in China and the West now, and I don’t think they’ll die of old age in 5 years.;)

    IL-76 started at 40 tons. now it is at 60 tons. MTA engines are already more powerfull than KC-390 by 20%. It will start at 20 tons. and will end at 30 to 40 tons. It has same x-section as IL-476. elongating a plane is not big deal over long term.

    Again, pray what does the engine have to do with it? The An-70’s engines serve its role and payload range quite well.

    Btw no matter how powerful the MTA’s engines are it’ll remain an MTA with max 20-22 ton payload. And if stretching the IL-476 would be no big deal why didn’t they do it for both the prototypes? In any case, as with MTA it’s in a different weight class altogether from the An-70.

    It is myth that An-70 is more modern designed. IL-476 is suppose to get new wing and FBW with all glass cockpit.

    The MiG-29SMT got new wings, FBW and glass cockpit. That didn’t make it a brand new plane.

    Look, man, ultimately there’s no way you’ll get me to agree that the An-70 and Antonov as a whole are inherently unviable and uncompetitive. Definitely not compared to the IL-476.

    It takes alot of money and time to produce 21st century world certified transport. Ask Embarer. how much it is going to spend on KC-390 and almost 90% of its parts will be outside Brazil on which it does not have any IP control.

    And yet Antonov is developing them with less funding than any of its Russian or Western counterparts. You finally see my point?

    There is no problem with IL-76 spares except it is the most used transport in the world. Volga Denpr is commerical operator of IL-76 and it will order even more IL-476 once production runs up and running.

    I’m sure the RuAF hasn’t had any (publicly revealed) spares problems with its MiG-29 or Flanker fleet either. But the IAF(among other customers) has had. So yes, it’s a problem.

    IL-476 will come in AWAC/Tanker etc and 100 before 2020 is very realistic figure. Unless you see production line prepared for An-70 at this place. there is no chance of An-70 being successful.

    http://rt.com/programs/russia-close-up/birthplace-lenin-ulyanovsk-aviation/

    The An-70 is two-thirds through testing and there’s talk of putting it an production as early as next year.

    As for the IL-476, both prototypes are still under construction and I doubt they’ll fly before next year. And then there’s years of test flights and certification left to do. I doubt it’ll achieve serial production before 2016. And initial production rates are likely to be low, so 100 before 2020 is an impossibility.

    Heck, if the An-70 proves to be effective enough in service the IL-476 may even end up sharing the fate of the IL-112. From 70 planned orders to cancellation halfway through test flights.:p
    http://en.wikipedia.org/wiki/Ilyushin_Il-112

    Uh what? Most An-148s have been made in Russia. And if we look at order book, Superjet is doing far better with foreign customers (or total customers for that matter). In a year or two Superjet will roll right past An-148 in production numbers.

    The An-148s are only being manufactured in Russia because of Russian funding and involvement(i.e. the parts) and because the production rate at AVIANT was too slow to meet demand. That doesn’t take away from Antonov’s capability in developing it despite their financial condition and lack of international collaboration compared to Sukhoi.

    in reply to: Pak-Fa Thread episode 19 #2298346
    Witcha
    Participant

    I don’t think it as easy as India taking PAK-FA technology and putting into the Korean program….;)

    TOT for domestic programs(AMCA in particular) is one of the reasons we joined the PAK FA, you know…

    Besides this can work out to Russia’s advantage as well. SPECTRA-ski on PAK-FA, anyone?:cool:

    in reply to: Pak-Fa Thread episode 19 #2298372
    Witcha
    Participant

    http://www.xairforces.net/images/news/large_news/010212_SKorean_Sukhoi_T-50PAK-FA.jpg

    A plea to the more knowledgeable on aeronautical tech,

    I’ve been reading up on Divertless Supersonic Inlets(DSI) and have been wondering whether it could be implemented on straight, rectangular inlets like the T-50’s. If so, how would it look?

    in reply to: Pak-Fa Thread episode 19 #2298384
    Witcha
    Participant

    Korea is basically looking for partners to help them build this
    http://img.atwiki.jp/image/tmp/namacha/namacha_430.jpg

    we know the Americans can help them.. not sure if the Europeans could.
    and the Russians…?

    RSK MiG has had multiple designs that look like that. All waiting for funding. If the Koreans were to demand sole ownership of production and marketing rights in exchange for their collaboration….

    Alternately, just approach India, damn it! Our AMCA is a very similar design, and we’ll have advanced technology from the PAK FA and Rafale to contribute to it in the very near future.:diablo:

    Witcha
    Participant

    Last time I checked, Tartarstan was part of Russia!

    Agreed on the An-70 (and your comments on Antonov’s other neat freighter design, the An-72/74, in the other thread), however.

    😀

    Whoops. For a moment I thought Kazan meant Kazakhstan!:p

    Well, there’s also the Czech Aero Vodochody(designers of the RuAF’s old L-29 and L-39 trainers) and a number of Polish aircraft manufacturers. Though admittedly these nations weren’t officially part of the Soviet Union…

    in reply to: Military Aviation News-2012 #2298668
    Witcha
    Participant

    Turkey plans to buy 100 US F-35 fighters: report

    So they’ve abandoned plans to fund their own fifth-gen fighter? Or were the TOT issues worked out?

    in reply to: An-72/74 Coaler #2298672
    Witcha
    Participant

    A while ago I went on a googling spree about the An-72/74 and unearthed a great many links. I’ll see if I can find them…

    What I know from these is that the An-74T-200(the latest version with STOL capability) is a very competitive military airlifter, overall more capable than any other aircraft in its class(namely the C-27J and CN-295). Sadly thanks to the ‘eastern bloc’ barrier and Antonov’s lack of marketing power, it almost never figures in any international light transport procurements.

Viewing 15 posts - 211 through 225 (of 1,232 total)