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crobato

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  • in reply to: F-14 in Russian Hands #2521320
    crobato
    Participant

    Hallo!
    I know this topic is fairly popular, mostly because it involves the TOMCAT. That is also the reason I am starting this thread, because using “F-14” for searching is garantuee for 1 million hits.

    Anyways, I came over a very detailed evaluation of the F-14’s drag and lift characteristics. Something you hardly find in any public source, it is written in Russian and dated from 1984. The data includes drag coefficient over Mach number for various configs, maximum lift coefficient (over Mach number) and installed engine thrust over Mach number for various altitudes. The data is quite staggering.
    Of course, I cannot judge about the accuracy. With my experience in flight performance I must say that all graphs look rather good, the engine data looks very serious (thrust and SFc over Mach and altitude).

    The only way to get such data is:
    – flight evaluation, at least some few validation flights
    – wind tunnel test (necessitating very good knowledge of the aerodynamics)
    – “reverse calculation” of the performance manual with extensive experience in flight performance

    Does anyone have a clue?

    Most likely a wind tunnel test using an accurate large scale model. Anyone can do this to help analyze potential adversaries. I bet China did the same thing on the F-16, and the US on the J-10.

    crobato
    Participant

    Could just be that this is a ‘production’ model that will be delivered to the PAF or PLAAF. It would be a bit late and wasteful to try and intergrate a new radar when so much time and resources have just so recently been expended intergrating the original.

    Could be. I don’t know how the plane can be “sold” to Pakistan without the reexport permit. The planes will have to be PLAAF’s, but can be “leased” to Pakistan for ceremony.

    This has to be a new radar, even if it’s Chinese in origin, but it has to be a different radar from PT04 or 06. Or for some reason, just chose to replace the radome with a color that the PAF would approve. But again, new radomes nowadays tend to be frequency selective, tailored to the radar they’re covering.

    It is *important* to know if that grey nose actually has a radar, or its just a metal cone that is painted grey. If the nose is metal, then it may have flight telemetry equipment instead. And if you have flight telemetry, then its a new prototype, and you’re redoing basic flight testing to obtain new flight data. Which means something is very different on the plane that requires a redo of previous procedures. Such as having a new kind of engine.

    The tail of that bird is bothering me slightly. looks a little smudged. :confused:

    That kind of blur is because that part of the image is no longer in the telephoto len’s depth of field.

    crobato
    Participant

    Interesting. The grey radome is something new. New type of radar perhaps? Either a different one from what is used on the PT 04 and 06, either a new model of a Chinese made one, or they went ahead and used a foreign system like the Grifo.

    I wonder how are they able to “give” the plane to Pakistan if those are RD-93s.

    crobato
    Participant

    India certainly can afford expensive systems like Scorpene SSK.

    I certainly think it can NOW.

    the only Western aircraft of any interest to India would be F-22. the rest does not offer any where capability like MKI. Just airlaunched Brahmos will exceed 500KM.

    Not quite. JSF, F-16E/F, and Block 2 Super Hornet with APG-79 will no doubt have avionics a level above the MKI.

    crobato
    Participant

    Well the WS-13 seems to be well on its way in contrary. Still doesn’t explain why India doesn’t buy advanced Western weapons over Russian. All you said about the Chinese engine can be said of Russia in general on arms compared to the West.

    Mainly because the Russians don’t attach political strings to what they sell.

    crobato
    Participant

    I don’t think PT06 is flying the new engine. PT06 looks like it has the complete avionics and radar suite. If a plane would be flying the new engine it would be without these, nothing but flight telemetry equipment in a solid metal nose.

    in reply to: F-5E vs Mig 21 #2524160
    crobato
    Participant

    Iraq used both the F-7B and the F-7M. Judging solely from photographic evidnece it seems clear that at least some of the Iraqi F-7M had a hud. IIRC a hud was standard equipment on the F-7M. The Iraqi F-7Bs would probably have had only a gunsight unless they were upgraded after delivery.

    F-7B
    http://forum.keypublishing.co.uk/attachment.php?attachmentid=136946.

    F-7M
    http://forum.keypublishing.co.uk/attachment.php?attachmentid=137878

    Yeah, that looks genuine. Hopefully its not a still from the Iranian movie where the F-7Ns are dressed up as Iraqi to play their parts.

    Looking at ACIG’s record of kills in the IPGW, it appears to be in favor of the MiG-21, but it may have been that the F-5Es are being used in bombing missions.

    in reply to: PAK-FA updated info, anyone? #2524593
    crobato
    Participant

    So now the people at Novosibirsk aren’t trained? They assemble Su-34s by luck?

    According to star49, these people should be masters in basic science research, win Nobel Prizes, so full of original ideas that don’t copy from anyone else. So they can do anything.

    in reply to: F-5E vs Mig 21 #2524596
    crobato
    Participant

    You could put smileys in the first place.

    Usually I am not much into repeating stuff I’ve said before, as I don’t seem to have the patience or the inclination nowadays. Hence I’m not that interested to talk about the J-7s except in passing mention.

    I should rephrase about what I said about F-7s appearing in both sides of the war. The F-7Ns Iran got was a bit too late for some Fishbed vs. Fishbed intramurals. Compared to the F-7Bs the Iraqis were using, this had a Martin Baker ejection seat, apparently a HUD, and the provision for four Western type AAMs when the F-7B had two.

    Just to recap what Tom Cooper said,

    “Otherwise, Iraqi MiG-21s (Iranians made no distinction between Iraqi J/F-7s and MiG-21s) were most beloved planes in the IrAF, and – by some Iranian pilots – considered as their most dangerous opponents.

    Regards,
    Tom”

    crobato
    Participant

    So I guess nearly 300 million dollars is saved, and more, since the long term requirement can go as high as 500 engines. Money that can be better spent on an indigenous development program.

    in reply to: Plilipenes to get A-10's #2524635
    crobato
    Participant

    The boots on the ground should get first priority on the very limited funds available.. modern radios, night vision gear, better weapons, new boots, better rations, etc. etc. even a single A-10 costing 10M dollars would wipe out the supplemental 5Billion peso budget congress OK’d for upgrading the ENTIRE military.. better to spend the money on fixing their C-130s and helicopter fleet.

    Way too much corruption and spending this, is like throwing money into a black hole. Either they will disappear, or they will only appear with the special bodyguards assigned to protect the politicians, and not with the actual soldiers who are fighting the insurgency, providing if they are fighting the insurgency at all, and not acting as being mercenary bodyguards to someone else. The insurgents also moonlight too.

    in reply to: F-5E vs Mig 21 #2524637
    crobato
    Participant

    I never tauted anything which is why I specifically said what I said. The J-7E came out at the early nineties so it had no relevance on the Iran-Iraq situation.

    F-7s appeared on both sides of the war, the Iranian variant being called F-7N. In the movie Attack on Superbase H-2, Iranian F-7Ns acted as extras painted in Iraq Air Force colors and insignias.

    in reply to: Code Name for the J-10 Any Takers? #2524780
    crobato
    Participant

    What makes it difficult to complete the Lavi is that Israel needs an engine. If you need to finish the Lavi, you have to use a PW F100 now but what if the US refuses to sell that? Hence Israel may play its hidden Chinese card to obtain WS-10A engines, probably improve the latter to meet their own specifications.

    in reply to: F-5E vs Mig 21 #2524783
    crobato
    Participant

    Hello All, I don’t know if this as been discussed before, but I am rather new to the board I figured I ask. How would you compare air to air combat between a F-5E and a Mig-21?

    Dave

    Depends on which MiG-21 you are talking about. The early ones, the ones with the -F, -FL, -PF, etc,. in their designations handle the best. The later ones, with the -MF and -bis, are trickier to fly, but has more power and better radar options. The J-7s are a different matter and has to be discussed seperately.

    crobato
    Participant

    The problem is the spares. No matter what, putting RD-93s into FC-1s give Russia a control string over Pakistan because of the issue of parts and maintenance. Perhaps thats the reason why the Russians also want to do this. Arming both sides will probably force India to elevate its arms purchases from Russia, giving Russia a win vs. win situation.

    Given the quality problems of RD-93s, I would be appalled to have the FC-1s get this. Better to nip the problem at the bud rather than let it grow bigger.

Viewing 15 posts - 1,366 through 1,380 (of 3,939 total)