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JangBoGo

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Viewing 15 posts - 1,291 through 1,305 (of 1,463 total)
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  • in reply to: Compare/Contrast: JAS-39 and JF-17 #2373831
    JangBoGo
    Participant

    Saab assume a figure of 200 flying hours per year and give 30 years life for the Gripen NG while ariframe life is 8,000 hours.

    For the JF-17 I have seen 4,000 hours quoted or 25 years which says they are assuing about 160 flying hours. For the poorer customers 160 hours/per year (assuming 1 pilot per plane) is very generaous. I would say the JF-17 is fit for purpose.

    when considering the western stuffs its better to take note that it most likely will be with the small star with lots of conditions like we see in advertisements. So a detailed description of how the 8,000hrs is achieved or how it is counted (like, right from engine start etc) would be good. It would also be a good to know if the 8,000hrs is the max achievable airframe life with a mid-life upgrade.

    …..the upgraded MiG-29UPG is to get additional 3,500hrs, it would translate into 17.5years (200hrs/year) or 19.44years (180hrs/year). And if we consider that MiG-29 upgrade is happening at mid-life, then we would be getting a figure of 7,000hrs for the early model MiG-29s.

    in reply to: Russian Aviation thread, part V #2373849
    JangBoGo
    Participant

    It wasn’t a price comparison.
    Why has the C-17 has actually outsold the Il-76 anyway?

    you wrote that drunk or in sleep? Even common sense and basic logic tells us that larger/costlier products lie to the top half of the pyramid!

    in reply to: KFX-III TENDER IS ON #2373851
    JangBoGo
    Participant

    Well the real question is would Rosboronexport even respond to the South Korean request to tender?

    Do they regard it a worthwhile effort to tender their latest fighter to a country that is highly likely to chose the American product (my money is on the F35) when it comes to the crunch. To reply to the tender and then go through the selection process costs significant money and exposes the technology to a country and airforce with VERY close relations to the USAF.

    For that matter would the Eurofighter consortium regard it as worth it considering what happened on earlier tenders and the fact that South Korea is clearly interested in a Stealth fighter.

    Rosboronexport will not clear it. But most likely its the private hands in Sukhoi are eager ones to export it to wherever possible to make their profits bigger.

    http://eng.opk.ru/aircraft/

    United Industrial Corporation is the largest private shareholder in the aircraft building industry, having a large shareholding in JSC OKB Sukhoi, a part of the holding JSC “Aviation Holding Company “Sukhoi”, which develops advanced military aircraft designs.

    OKB Sukhoi’s major state-of-the-art developments are the Su-27 blended-configuration fighter and its later modifications – Su-30, Su-32FN, Su-33, Su-35 and Su-37 (vectored-thrust), Su-29 and Su-31 acrobatic aircraft, Su-38 agricultural aircraft, S-54 supersonic passenger aircraft, S-80 and S-84 light aircraft, S-86 executive aircraft, S-90-200 amphibious wing-in-ground-effect aircraft. The promising design include those of a fifth-generation fighter and “regional air liner of the future” – RRJ (in collaboration with Boeing), development of unmanned aerial vehicles (drones) and sporting aircraft. OKB Sukhoi is characterized by stable earnings and profits.

    JSC OKB Sukhoi

    These private hands doesn’t care a crap for Russian National interests and only profits matters for them…they have been destroying/scaling down all other rival OKBs into insignificance.

    in reply to: Russian Aviation thread, part V #2373855
    JangBoGo
    Participant

    if some one orders a MiG-35 at MAKS, I’ll punch a puppy and kick a kitten, just for you!!!

    What’s the matter, affraid to pick someone your own size? :confused:

    lol…after all thats what NATO & NATO members do. Nevr fight your equals! 😀

    in reply to: KFX-III TENDER IS ON #2373858
    JangBoGo
    Participant

    I find Israeli involvement in a PAK-FA sensor/weapon fit to be unlikely and useless.

    Agree 100%

    Well, FGFA is a separate entity, but for whats its worth, I find the likeliness of major non Russian/Indian material in the Indianized PAK-FA to be very low. The situation is quiet different from MKI experience. Just my 2c.

    Usage of only Indian & Russian systems should be made as a vital goal for the FGFA. If India can’t develop & produce sensor suites and need to depned on the Isreali’s even after a decade of cooperation, it talks a lot about the incompetence & the lack of technical know how of the Indian establishments. Hope I’ll be proved right and there will be Indian systems and will not have to source “outside” stuffs for FGFA.

    in reply to: KFX-III TENDER IS ON #2373864
    JangBoGo
    Participant

    It looks like Indonesia’s JV for a fighter a/c with SK is going to get bad. Its better for the Indonesians to join the Russians for their a/c rather than depending on the Koreans.

    in reply to: Compare/Contrast: JAS-39 and JF-17 #2373869
    JangBoGo
    Participant

    Yeah, I made it. And, sure, you can use it. 🙂

    Hi robban, that was pretty nice. Can you do a comparison with four aircraft – JF-17/LCA/Gripen & MiG-21.

    TIA. 🙂

    in reply to: Compare/Contrast: JAS-39 and JF-17 #2373878
    JangBoGo
    Participant

    You’re not making any sense at all…
    You’ve just highlighted how the JF-17s fuselage can not be fundamentally the same as the Mig-21s, and yet keep banging on about how it’s still ‘basically a Super-7’.

    The fact that the JF-17 uses a completely different engine, completely different intakes (DSI eventually), completely different landing gear assembly into the fuselage, different cockpit, different wings, different tail plane…etc would all add up to the necessity of desiging a new fuselage. There’s no way you could configure all those changes into the limited Mig-21/Super fuselage, it’s just too limited in what you can do with it.

    Using you logic, the JAS-39 and JF-17 essentially use ‘the same’ fuselage because they look ‘similar’. Have a look at the plan form of the two types on the previous page. Does that also mean the Gripen uses ‘essentially a Mig-21 fuselage’ as well?

    nevermind..:rolleyes:

    I can see that I’ve touched a raw nerve here for certain posters. Facts are there for anyone to see if they just compare the Super-7 concept and the initial FC-1 prototypes.

    Or is it that someones pride got hurt? :rolleyes:

    This is what you said.

    …but, it still inherits the basic Super-7 fuselage and general layout…

    Remember, the Super Sabre/Super-7 project was based directly on the F/J-7/Mig-21 fuselage, the later FC-1/JF-17 project was based on a new fuselage to house the RD-93 and other structural changes, that’s what I’ve been trying to get across. There’s no denying that lessons learnt from the previous Super Sabre/Super-7 project were used, but just that the two projects used different fuselages.

    And as the pictures posted show, it does inherit the basic Super-7 fuselage and layout (the front fuselage and intake location are nearly the same), but as it has evolved (such as the wing design being changed to an F-16 style wing and the wider diameter RD-93 engine) it has had some obvious changes thanks to area ruling.

    Oh boy, now Get up, dust your butt and move-on.

    If anyone claim that Tejas is a cheap copy of Mirage-2000 to avoid paying French the royalty for licence manufacture, will you accept it?
    If not, get matured and don’t pollute the thread.

    in reply to: Compare/Contrast: JAS-39 and JF-17 #2373880
    JangBoGo
    Participant

    Gripen was deliberately designed down to a size, & a price. It was meant to be the best that could be achieved within very strict weight & cost limits, not the best in absolute terms that swedish industry could produce.

    Oh dear…..why turn the facts? Gripen is the BEST that Swedish industry could produce at that time and what it produces now is the best they can do. Its is for that reason that we saw later on blocks of Gripen and earlier the futile attempt to pocket India for funding the Gripen-NG. If the Swedes were capable of more, they should have made the Gripen NG in the first place and not the Gripen!

    in reply to: Compare/Contrast: JAS-39 and JF-17 #2373883
    JangBoGo
    Participant

    Surly both fighters are same class (comparing aircraft by size and weight) but Gripen is a far more advanced with all its cool features like linking radars on couple of fighters (through Gripne link that has greater capabilities than Link-16) to give them better range, Gripen also should have beter aerodynamics (JF-17 is just MiG-21 with some features upgraded, Gripen is a new design and they have lots of experience in aerodynamics in Sweden, they have been building fighters since World War II). In Sweden Gripens are a part of a system with Erieye.

    Avionics: Gripen has AIM-9M, IRIS-T (that can be used with helmet mounted sight), AIM-120C and soon MBDA Meteor. Does JF-17 have helmet mounted sight and any BVR capability?

    Personally I’m not a big fan of Gripen because it is to small (what limits payload and range) and not fully NATO compatible (for long time it had no Link-16 so it couldn’t share information on targets with AWACS or other NATO aircrafts). But to compare it to Chinese MiG-21 offspring powered by RD-93 (RD-33) engine – well I know something about MiG-29 and RD-33 is not the best engine, especially for one engine fighter. Is this some kind of Joke?

    Gripen is the best light fighter on the market, the other are used F-5s (IAI offers some nice upgrades), and Asian fighters like Tejas (India), FA-50 (Korea) and F-CK-1 (Taiwan). I would take any of those (including IAI upgraded F-5) over JF-17 anytime. Just google the pictures and compare how those fighters looks. JF-17 is just coarse.

    Gripen is superior to both the JF-17 & Tejas but I differ from the way you are considering it. Any aircraft has to be considered or compared by separating two vital stati

    1) constants
    2) variables

    Airframe or the structure of the aircraft is a constant and is likely to remain mostly the same for its entire life. Except for maybe few supports for strengthening the joints like wing-roots etc during life extension. Another constant is the aerodynamics of an aircraft.

    Whereas almost everything else is a variable that can changed/replaced/upgraded.

    I brought it up only because people always do an aircraft comparison only based on the avionics saying radar, datalinks, weapons etc of X aircraft is better than Y and hence X is better than Y…It may be true when considering the system as a whole…

    In the case of JF-17, considering the above….it can be installed with all the avionics of the Gripen and make it equal in the variable(s) department. But it won’t be able to match the Gripen in the (constant) airframe department where Gripen is superior…. Unless the design is upgraded (new batch), in short a new design.

    All three – JF-17, Tejas LCA & JAS-39 Gripen – belong to the same size class but capablility wise they can be categorized as low-medium-high, based on the constants.

    In the case of Gripen & JF-17, I see a much greater success (read desirable) for the JF-17 because it would be cheaper to buy than the Gripen and provide most of the options that a costlier Gripen can provide.

    in reply to: Compare/Contrast: JAS-39 and JF-17 #2373904
    JangBoGo
    Participant

    I would not call it “point defence” when it has a ROA of 1,200km, which is more than the Gripen.

    The RD-93 on offer is based on the RD-33, Series 3. Note the brochure says “modenised RD-33” and “98kN”.

    http://i56.tinypic.com/m8z8r9.jpg

    Agree on the point defence note…. but still JF-17 in its operational role in the theater that it will be deployed is more likely to be employed in that role mostly.

    Thanks for that brochure. I searched for this specific one on the internet on the 98KN thrust, but was unsuccessful. The wiki link mentioning the same was not working either.

    So a question, Does the 98KN thrust RD-93 exist in its physical form? And if yes was the PAFs JF-17 or the FC-1 in China ever tested with the 98KN engine?

    in reply to: Indian Space/Missile News/Discussion – III #1797042
    JangBoGo
    Participant

    Today was the launch trial for Prahaar battlefield missile…no news on how it went??

    BTW chorgupta as usual confusing Prahaar with LORA /EXTRA/Whatever in his blog and also making false claims(as usual) about prithvi’s CEP…again caught red handed:

    should there be any surprise to his remark? We have seen the case of IAFs recently inducted radars being claimed as “indigenous”

    In your first comment you mentioned that the accuracy of SS-150 is dismissal and the system is cumbersome and so on.

    Prithvi was, is and will be cumbersome battlefield missile when compared with other similar systems. It was the reason why Prahaar was born. The accuracy of Prithvi was improved in the later on variants…

    Me being witnessed a trial launch,I assure you that the accuracy of the system has been brought down to 4-6mts.Other than the system being a liquid fueled,its still our best choice to take down the enemy targets with a wide variety of targets.Been using the system fora long time and having tested it multiple times,I will place my bet on using this one. All the inventory of 150`s which are ofcourse a huge number running into a number of hundreds has to be expelled to make room for new inventories.
    On the other hand you cant compare a system like prithvi to any other contemporary one. Prithvi lies in an entirely different block. IF accuracy is one factor, then its anti-ABM is another factor.

    Simply because ss150 is the only option will not make it less cumbersome or undo the fact.;)
    btw, what is chorgupta?

    in reply to: Indian Space/Missile News/Discussion – III #1797046
    JangBoGo
    Participant

    test completed successfully.
    http://frontierindia.net/indiandefence/india-tests-prahaar-surface-to-surface-missile/

    it’s clear they have used the AAD missile of the ABM system as basis. and the six pack vehicle isn’t ready yet. they have used the same one they used for AAD test.

    this is the prahaar
    http://2.bp.blogspot.com/-2tWKb4GlU8M/Tie8R2pS4vI/AAAAAAAAEJE/pRER_dR5WVU/s1600/p-4.jpg
    http://3.bp.blogspot.com/-jSiklpMIHbg/Tie8VYUzszI/AAAAAAAAEJM/u-6MiwLSfs0/s1600/p-1.jpg

    and this is the AAD from the 2007 missile intercept test.
    http://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/AAD_Launch_Crop.jpg/543px-AAD_Launch_Crop.jpg

    prahaar launch video here :
    http://www.youtube.com/watch?v=5N1l5DMUjw4

    You forgot to highlight the name of the missile and this “DRDO successfully flight tested its latest surface to surface missile Prahaar” in your post…. 😉

    Any view of the static missile in the launchpad? It looks like the stablizers are fixed and cannot be folded?

    in reply to: Indian Space/Missile News/Discussion – III #1797048
    JangBoGo
    Participant

    Excellent News! If these are similar to ATACMs then they should be very cost effective. I really hope they are planning to stick a couple of these on some surface ships or even fast attack craft like a slightly bigger version of the L&T interceptors.

    Yes great news indeed, in the sense that IA will be able to do away with the cumbersome Prithvi missiles. Prithvi as a battlefield missile had a drawback with its long tail of supports for a missile just 150Km. Else Prithvi is a bit OK for the job.

    Prahaar with a single TEL will be able to carry a payload of 1,200Kg (6 missiles) against the 1,000Kg of Prithvi and will do away with all support units associated with the liquid fuel. Lets wait and watch how much the tail have been chopped for the Prahaar battle units.

    If I may go further ahead….. when these missiles start arriving, there is a chance that Prithvi already in service might become secondary as any IA commander would like to see his job done with a smaller logistics footprint. So why not put up the already in service Prithvi for sale to other countries once the Prahaar fills up the arsenal?? Any thoughts?

    in reply to: Russian Navy Thread #1997610
    JangBoGo
    Participant

    http://shipbuilding.ru/rus/news/russian/2011/07/22/OSK_Baltfactory_220711/

    Actually, nope. Looks like Baltisky has been fully and thoroughly raided by its owners (OPK) and all productive assets sold off. The only thing that remains of the enterprise is its administrative offices. OSK says it likely will not acquire what little is left of the enterprise.

    I had thought OSK bought it from OPK back in 2009 when it first went into receivership, but that deal was apparently never finalized and now likely will never be.

    yes, the guys have raided the BZ and it was probably due to the reason I mentioned in above post to Witcha. The yard is big and fit for large tonnage vessels and these guys are probably not seeing any orders for ships of that class to make the BZ profitable. It could be the reason why they are concentrating on the SV.

    United Shipbuilding Corporation
    http://www.oaoosk.ru/

    United Industrial Corporation
    http://eng.opk.ru/shipbuilding/

    Note that the OPK is listing “Iceberg Design Office” as their unit, where as OSK have Iceberg under their list. This lists all the shipyards & design bureaus under the OSK
    http://www.oaoosk.ru/organization_chart.html

    Just in case anybody forgot the private hands in Suhkoi OKB.
    http://eng.opk.ru/aircraft/

    For all those who can’t read Russian (incl me:o) ….The first site will convert almost everything…though microsoft lags. But both better than the anti-Russian google guys.
    http://www.online-translator.com/Default.aspx/Site
    http://www.microsofttranslator.com/

Viewing 15 posts - 1,291 through 1,305 (of 1,463 total)