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martinez

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Viewing 15 posts - 706 through 720 (of 1,048 total)
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  • in reply to: Mig-25 vs. SR-71 and XB-70 vs. T-4 #2501264
    martinez
    Participant

    The old vintage P-12 Spoon Rest early warning radars were picking up Blackbirds at 200km distance, “a bit upgraded” Spoon Rest-D at approx. 300km. Tall Kings EW radars even doubled the tracking distance. No wonder that both the Mig-25, Mig-31 during that time in airborne used GCI commands for automated intercepts. Pilots switched their datalinks to “peredacha” and followed instruments to get the best position to fire missiles. Tracking Blackbird was an easy task for ground radars, bcs of its restricted maneuverability at Mach3. Mig pilots were able to lockon the SR-71 with IR missiles, no need to turn on their on-board radars.

    P.S. another vintage soviet radar range info vs SR-71, the SNR-75 FAN SONG A radar of the S-75 komplex were able to track it at a distance of 150km.

    in reply to: The PAK-FA Saga Episode III #2501333
    martinez
    Participant

    Which raises the question… why not just make thousands of cruise missiles?.

    Garry, that`s called the scientific-technological revolution, bcs it is always better to spend money on a few modern tractors ploughing the field than thousand of workers doing the same. 😀 😀

    in reply to: The PAK-FA Saga Episode III #2501362
    martinez
    Participant

    Compare RAF fleet to Serbian fleet first.

    yeahh, a dumb comparison, lots of if…..but not surprising from him at all.

    in reply to: The PAK-FA Saga Episode III #2501384
    martinez
    Participant

    Edit: to twist this a bit, imagine if here in the UK we had been under attack from Russian air forces for the last month but had only managed to shoot down one or two flankers while their planes continued to molest our country un-phased each and evry day, i certainly wouldnt be cheering that we are beating them by any means, infact i’d be positivily gutted. As i would have been if i were a serb during thier conflict.

    Then imagine if the UK had a poor AF and PVO similar to JRV and you would be outnumbered, outclassed by Russians. Ring bells?
    Anyway, shooting down a stealth costs a bit more than shooting down F-16, thus stealths were not sent to hot areas until the NATO cleared that area. Fortunately for them, it was not cleared only once.

    in reply to: Yak-130 Images… #2501390
    martinez
    Participant

    Of course it is. Look at at how short coupled that fuselage is. Long fuselage=small fin, short fuselage=large fin. It’s all to do with the lever arm. On a fuselage that short a small fin would not have the leverage for adequate yaw control. The only thing I’m surprised by is the fact that the Tailplane is not a good bit larger than it is to ensure adequate pitch control………….I did notice that but it still doesn’t seem to provide enough area.

    It seems you have read a book on elementary aerodynamics and became an expert overnight to judge why do they have such a small tailplanes. There are also other factors affecting the lever arm of the tailplanes, not just you;ve mentioned “Long fuselage=small fin, short fuselage=large fin. “:rolleyes:

    in reply to: Mil Mi-8/17 Hip #2501424
    martinez
    Participant

    Not sure how greatly reducing pilot and copilot visibility would improve the design…

    Modernized Hips are receiving various weather radar systems with radome noses and crew cabin armour plating which reduce visibility down as well. I think it is still probably worth when adding flight safety. Never heard complains from pilots.

    in reply to: Mil Mi-8/17 Hip #2501427
    martinez
    Participant

    A rather interesting upgrade is this Elbit/LAHAV Mi-17M used by Slovak AF in the SAR role. The FLIR ball under the nose is Elbit ComPASS type, pilot’s vision system consists of Elbit AN/AVS-7 ANVIS/HUD night vision system (aviators goggles and HUD-24 head mounted display).

    Systems installed to SAR Mi-17 with help of czech company ÄŒLS. There are also systems installed in coop. with other companies like EADS, BECKER, SPEEL, … etc, including Elbit you already mentioned.

    http://www.ceslet.cz/en/military-programs/mi17-vir32-ff2101-dme442-nvg-i56/

    It should be also noted that this is an upgrade to Mi-17 and not Mi-171, which differs a lot regarding structural spars near engine bays. Particularly, these disadvantages of Mi-17 are causing problems when installing the new external hoisting system with increased lifting capacity.

    Czech 171Shs only have dials in their cockpits, no single MFD or anything like that. The only obvious upgrade would be GPS receiver installed in the central console and black painting of the IP, which indicates NVG-compatible lighting.

    You;re correct. The avionics suite in the Czech Mi-171Sh (Shturmovoy variant), is far from to be called “top-of-the-line variant”. You can hardly expect top-noch systems installed when your helos are delivered in discharge of state debt. Czechs are already undergoing steps to upgrade the avionics as well.

    in reply to: Mig-25 vs. SR-71 and XB-70 vs. T-4 #2502950
    martinez
    Participant

    Titanium is expensive, and tricky to weld properly. The Mig-25 was designed to defend the northern reaches of the Soviet Union. Even with its speed that is a huge expanse to cover… The soviets knew they had to have a lot of Mig-25s so they decided to make them as cheap as possible. Costs were cut whereever possible. One easy cut was the Titanium. Steel is much cheaper though it is heavier it has otherwise similar properties. It was known the engines of the Mig-25 were limited to normal operation at Mach 2.83 for about 5 minutes and so at such speeds Steel was able to do the job. If the speed requirement had been unlimited flight at mach 3.5 then Titanium would have been necessary. It wasn’t so they took the cheaper easier material to work with. Another saving was a metal mesh they used around the engines as a heat sink. Originally they were going to use a gold mesh but ended up using the cheaper and only slightly less efficient silver mesh around the engines.

    Many in the west surmised that Titanium was too difficult to weld and they didn’t have enough skillful welders, or they simply couldn’t afford it.

    Put in perspective the Soviets made several submarines of several thousand tons displacement during the 70s and 80s out of Ti.

    Garry, why would they require unlimited flight at mach 3.5, to fly Foxbat next to Blackbird and show them fingers? 😀 Ah, what the heck, it wasn`t built from titanium but stainless steel, because there wasnt need to. They`ve put inside engines which could withstand high speed dashes just for couple of minutes. The Mig-25 was designed to intercept, which meant to climb quickly to desired altitude at speeds and “toss” a missile to the direction of US Mach3 bombers or spyplanes. Period.

    P.S. How tough was it for them to calculate when a missile capable of Mach4.5 launched from aircraft no.1 flying at M2.8 hits the aircraft no.2 flying at M3.2.

    in reply to: Nose mounted pitot tubes, or not? #2502962
    martinez
    Participant

    what about those long metal stripes found on Typhoon and Rafale radomes, do they not interfere or decrease radar performance?

    in reply to: Upgraded Ukrainian L-39C #2460511
    martinez
    Participant

    No wonder it went nowhere.

    Thanks for the pictures.

    No, it went elsewhere and is still alive. The upgrade is almost worthless unless you know its real purpose. The IAI was looking for cheap overhaulers of ex-soviet hardware and the L-39 trainer fits their requirements well. They put inside goodies like laser gyro INS and GPS navigation system, mission data processors, large MFDs and HUD, ….etc and perform testing…..
    The real deal is the upgrade of ex-soviet combat aircrafts worldwide, mostly third-world countries……. you will know when seeing a similar cockpit layout with that large MFDs.;)

    in reply to: US Air Force declassifies elite aggressor program #2462903
    martinez
    Participant

    1MAN

    What your posts have in common with Martinez’ is that you’ve both done a good job of making people think that you are intransigent conspiracy theorists.
    Martinez is too lazy to do his own research, so like a child he simply asks stupid questions – ‘How good was EID?’, ‘Tell me how many MiGs COMBAT TREE helped shoot down’, ‘Where have all the MiGs gone?’, etc. You are a bit like that, too (‘Show me some sources!’, ‘I want to see photos!’).
    You reckon that for America to get any advantage out of flying a MiG-29 or a Su-27, it would have to be the latest model since a great deal has changed. That’s a totally flawed argument that, like Martinez, exposes you as someone who does not know the first thing about US FME – either its scope or its purpose.
    And, as with Martinez, just because someone stops responding to your stupid, ignorant questions and opinions, it doesn’t mean that they have conceded that you are correct. Frankly, the other thing that you and he have done a good job of is reminding me why I stopped posting to forums and newsgroups such as this many, many years ago, and why I won’t be doing so again the future!
    Maybe you and Martinez can find a guy on the internet called Venik? You’d all get along well with him!

    Hey Mr. freelance aviation journalist, when someone demands a single proof for your claims, you go ahead and accuses anybody with an opinion different from yours and calling us lazy, ignorant, stupid or even conspiracy theorists. It;s obvious you do not posses a single proof for your beliefs while waving around with primitive arguments like “you do not understand scale of America’s ongoing FME activities” or that better “if those civilian hacks can do it, why doubt that the US military wouldn’t while refering to civil FAA registry” or else blaah, blaah……:rolleyes:
    Hovewer we are living in a time of scepticism, so provide proof for your claims, or realize that your arguments are a joke and with no credibility. As for those other primitive accuses, I do not bother, you know the world is a big place and full of idiots as you that would talk about stuff they do not understand, but I;m feeling immense sorry for those buyers or should I say victims of your present or past “researches”.
    Anyway, you remind me of another freelance aviation journalist Tom Copper, you both show more imagination and empathy than it is in reality. You would get along with him too!:D

    P.S. Why you rather do not research flying saucers over Groom Lake, afaik America own one since 1947. They`ve been seen flying numerous times, but Flankers or Fulrums none.

    in reply to: US Air Force declassifies elite aggressor program #2463546
    martinez
    Participant

    Martinez, watch the language.

    And if you bothered to have taken a look at the link I’ve posted, you would have seen that the canopies are actually just fine. You are talking about reflective covers to the inside of the canopies to keep the cockpits cool. The pics are the same, just bigger btw.

    I bothered already and say it again the solo a/c plexi is aged, telling anyone this aircraft is not airworthy a long time. Not to mention it was supposed to be Czech junk grounded in mid nineties. Now it found its way to the US and will serve as a static display forever. Looking at the new paint job, covering dielectric covers(fiberglass laminate) and alluminum around with the same topcoat, missing any working aerials needful to gain FAA certificate of airworthiness….

    Well, are those Floggers airworthy or not?

    in reply to: US Air Force declassifies elite aggressor program #2463587
    martinez
    Participant

    You read too much into my posts. Have you not seen pictures of the 23 at an airshow?

    I find it just amusing that according to you any American civilian hacks owning a Mig and having a civil FAA registration has to be automatically airworthy. 😀
    AFAIK there was only one Mig-23 airworthy in 2006 and I doubt it still is.
    http://www.metacafe.com/watch/310637/mig_23_air_display_at_the_2006_new_castle_airshow/

    And going back to the original subject. Think about it, if in the period up to 1988 or so people had said the US DoD were flying F117s out of TTR would you have believed them given that there were no real clear photographs?

    Sorry, do not understand, how is this connected to the airworthiness of the Mig-29 and Su-27 in the USAF we are discussing right now?

    in reply to: US Air Force declassifies elite aggressor program #2463607
    martinez
    Participant

    There are two ex-Czech MiG-23s in Florida, one of which is certainly on the airshow circuit.

    http://www.flickr.com/photos/23437487@N00/470491266

    http://www.flickr.com/photos/23437487@N00/470491256/in/set-72157594477944672/

    You are killing me bro, I just checked those Floggers owned by a private guy. Look at these pictures, the solo Mig-23 has the cockpit nice yellow, which denotes a chemical reaction inside the plexi glass when aging on sun, the double seater has it even broken. They both surely have to be airworthy, fck no way!!!
    http://www.flickr.com/photos/23437487@N00/470491266/in/pool-mig23/

    http://www.flickr.com/photos/23437487@N00/470491254/in/pool-mig23/

    http://www.flickr.com/photos/23437487@N00/470491242/in/pool-mig23/

    in reply to: US Air Force declassifies elite aggressor program #2463657
    martinez
    Participant

    And what? Did I say that the civil ones were flying? I only referred to the two US Army ones.

    As for your comments about journalists and spotters. Try to remember that the kid sitting on the fence at the airfield with his camera is a useful source of information. It was spotters photogrpahing and writing down numbers of executive jets who provided the evidence on extraordinary rendition so please don’t look down your nose at them or journalists for that matter.

    No problem, we are discussing.:) As for the kid sitting on the fence, do not worry, have nothing against them. I`m doing the same in free time…..:diablo: 😀

Viewing 15 posts - 706 through 720 (of 1,048 total)