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Archibaald

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Viewing 15 posts - 226 through 240 (of 264 total)
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  • in reply to: Iraqis Mirages #2599314
    Archibaald
    Participant

    Iraq wanted 133 mirage F1 but only 113 were delivered. The 20 last were F1EQ-7 they were not delivered because of course of the first gulf war. Apparently they can fire AS-30L but also russians Kh-29 air to groud missiles…

    in reply to: Ye-152A "flipper" and J8-I #2600389
    Archibaald
    Participant

    ok thank you… that was a rumor I have heard sometimes…

    in reply to: Iraqis Mirages #2600391
    Archibaald
    Participant

    poor minister Beregovoy was bashing very hard by medias because of corruption and as a result commit suicide on 1st may 1993…

    in reply to: Iraqis Mirages #2600402
    Archibaald
    Participant

    Mirage 4000 , F-15 and supercruise

    I heard Rafale and Typhoon can flight in supercruise because of their high trust to weight ratio (between 1.2 and 1.45 without afterburner). But the 4000 had nearly the same thrust to weight ratio, with the latest version of the M53 engine, the P2 (6560*2 = 13120kgp of thrust whithout reheat; it weighed only 17700kg. So, that 1.35)
    So my question is : could the Mirage 4000 reach supercruise, as the Rafale and Typhoon ?

    Mirage 4000 vs F-15A :
    weight was 17700kg versus 20500kg.
    (Wing area : 73m2 versus 56m2 for the Eagle) wing loading was much less something like 360kg/m2 for the F-15 versus 250 for the 4000.
    And more, the F-15 lacks unstability and fly-by-wire system…

    Archibaald
    Participant

    Yes the R-530 was a dip****. Therange was not bad, around 18km but kill rate was disastrous… apparently one day a french Mirage F1 fire a R-530, and the missile made a loop around the fighter! The Super-530 was very different in all aspect, and much better. It entered service in french air force around 1978.

    in reply to: F-18 E/F performance report #2600806
    Archibaald
    Participant

    I heard that the Tomcat (anf his Phoenix missiles) could intercept anti-ship missiles or cruise missiles launched against aircraft carriers. Can the Super Hornet make this too ?

    in reply to: Q-5 Fantan #2600812
    Archibaald
    Participant

    The A-5C appears in the old video game “F-22 Raptor” (Novalogic). I fought them so many time… no match against the Raptor!

    in reply to: RA-5 Vigilante, your thoughts… #2065014
    Archibaald
    Participant

    What about a comparison between the Vigilante and the Mirage IV ?
    They were very similar (no bomb bay: the AN-52 nuclear bomb was semi-recessed under the belly). The Mirage flew 10 month after the Vigilante, in June 1959. It had nearly the same power (Atar was roughly equivalent to the J79, and the delta wing was ligher; The Mirage stay in nuclear alert from october 1964 to July 1996; it’s career as recon airplane ended in… july 2005!!
    The Mirage IV was tested, too, by the RAAF (General Hancock, 1963);
    More, there was even a project of Mirage IV* (star) for the RAF. It had two Rolls-Royce RB-168 Spey and the electronics of the TSR-2. In 1965, France and GB were allied on concorde, the Jaguar, the AVFG… the project was less costly than buying
    F-111. Rolls-Royce fought for the project but the british governement made his choice in favor of the F-111 (which turn to a financial disaster)

    in reply to: F-18 E/F performance report #2601624
    Archibaald
    Participant

    Is the Super-Hornet so bad ? imagine the slaughter against Iranians Tomcats… 🙁

    Archibaald
    Participant

    wow. Thank you flex 297!! Try to put that list in the website “****france.com” and wait their reactions… (this website is infamous!!!)

    in reply to: Just a question… #2601647
    Archibaald
    Participant

    apparently there’s a lot of differents “fly-by-wire” !!
    – to correct unstability on one of the three axis of a plane (yaw, pitch or roll)
    (YF-107)
    – to make secondary tasks (example : moving the airs intakes according to speed as in the XB-70 , SR-71, Vigilante, Tomcat etc.)
    – to control unstable “aircrafts” such as X-15 or Dyna soar (Stability Augmentation Systems)
    Even complicated : apparently there was Analog and Digital fly-by-wire!!

    That’s not easy to understand what “Fly-by-wire” means…

    in reply to: Just a question… #2601654
    Archibaald
    Participant

    A fly-by-wire system :
    the pilots acts on the controls.
    Then, the order is transmitted to a computer.
    The computer send the order to the control surfaces via electric wires.
    but that’s a right , a computer can control an airplane via hydraulics, as for example in the X-15!!
    If there’s only a computer (whitout wires to transmit the orders but for example hydraulics), apparently that’s not fly-by-wire. That’s “Stability augmentation System”
    I was fascinating by the CF-105 Arrow so I tried to understood what “fly-by-wire” meant for this airplane. apparently, there was a computer and electric wires to transmit the orders…

    Archibaald
    Participant

    Concerning the lack of power of the F1 that’s true : the Atar 9K-50 only had 7200 kg of thrust. There was a prototype with the M53 (8500 kg of thrust) the F1E. It’s was the main competitor of the F-16 for the european market in 1975 but lose and was abandonned. Never understand why Dassault didn’t put the M53 in the iraqis F1EQ. In fact Iraq stated to buy F1s in 1977 but they had the Atar 9K-50…
    Apparently F1EQ shot more than a dozen of Iranians Phantoms; their missiles were nearly equivalents (Magic I and II = AIM-9 B /P , Super-530F = Sparrow)

    Archibaald
    Participant

    I think the main adavantage of the Viggen was data link : Swedish were pionneers of this technic starting with the Drakken in 1960! Swedish fighters could fire their missiles with their radars shut-down; air-to-air missiles were guided from the ground or others fighters.
    http://www.vectorsite.net/avvig.html

    in reply to: Iranians Tomcats #2602327
    Archibaald
    Participant

    The genesis of the Mirage IV is a very,very complicated story…
    It’s because the very first Mirage III had a different engine (Atar-101, 4500 kg of thrust) so It was the Mirage III-01.
    The Mirage III-01 flew in 1956, 17 november.
    Well, in 1956, the name of the (future) Mirage III-A (with Atar-9) was…
    Mirage-IV-C!!!
    The definitive Mirage III with the Atar-9 (6000 kg of thrust) was the Mirage III-A and flew in May 1958.
    One of the Mirage IV project (the lighest) became the Mirage IIIA, C , B etc.

    In fact the Mirage IV at the beginning was a heavier and more powerful version of Mirage III-01.
    When I say “more powerful” it means at the beginning, with Atar-9 (6000 kg of thrust). Then, with super Atar (9000 to 12 000 kg of thrust)and at the end, twin engines (two Atar 9)
    The Mirage IV quickly evolved to a two engines airplane, the Mirage IVC. But it was not a bomber; it was some kind of heavy fighter like the phantom(imagine a delta wing phantom…).
    French air force like the concept, but it was too expansive, and the light, single engine Mirage III was chosen instead in 1958.
    So the Mirage IVC project evolved to the well known light bomber Mirage IVA. The prototype of Mirage IV-A flew on june 1959, powered by two Atar-9 6000 kg of thrust.
    But as a bomber, it’s 2500 km were insufficient to strike USSR. So a Mirage IVB project was launched. That’s what you heard about : it had two J-75 engines (13000 kg of thrust each) weighed 57 tons and had 5000 km range.
    It was never build : De Gaulle didn’t wanted that french nuclear deterent strategy relies on american engines.
    So he choose the Mirage IV-A; the problem of range was solved by 12 C-135FR baught in 1964…

Viewing 15 posts - 226 through 240 (of 264 total)