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aurcov

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Viewing 15 posts - 391 through 405 (of 1,239 total)
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  • in reply to: BVR vs WVR kills #2481596
    aurcov
    Participant

    If two stealthy aircraft engage with each other (without external support), I would guess the number of BVR kills drops to zero and the kills are necessarily all WVR (fun fact: under that conditions the F-22A can put two AIM-9 and the cannon into the fight, the same like a clean F-16A). The consequence is (and that is the biggest criticism of the F-35 I think), that a stealthy aircraft needs to maintain a performance level comparable to 4th or 4.5th generation aircraft.
    That is also the basic point of Stevenson.

    And the second stealthy aircraft would be?

    in reply to: BVR vs WVR kills #2481624
    aurcov
    Participant

    Drawing a line through two points doesn’t make a trend, only for weak minds (those who trade at Leham Brothers for example). Your figure could end up completely wrong. Funny exercise: draw a vertical line at say 1980 and predict a trend from there. You should get familiar with some statistical basics and have respect the factor Randomness.

    Feel free to interpret the available data at your will; let me know your conclusions.

    in reply to: BVR vs WVR kills #2482352
    aurcov
    Participant

    I know for a fact that the kills in Allied Force required more than 1 BVR missile fired each too so I’d take the 100% with a very large pinch of salt.

    Possibly some vinegar and tabasco too…

    You know wrong. The kills might not require more than one BVR missile. The procedures (USAF ones, I don’t know if any other AF enjoy this luxury) impose that two missiles are fired, to be sure than the enemy is shot down.

    in reply to: BVR vs WVR kills #2482401
    aurcov
    Participant

    Thanks for it. But the graph has one shortcoming: it uses very scarce data but provides very smooth trends. The details are not known. Such a graph might look good, but it fills huge gaps of information with a simple line. For any serious reasoning it is useless.

    It is useful because it shows the trend.

    in reply to: BVR vs WVR kills #2482812
    aurcov
    Participant

    I think the few times these weapons were used are insufficient to draw any conclusions from it. Tests tell us more, and that all major air forces consider active radar medium range missiles as their primary air defense weapon.

    In fact, these never was an all-out war between two major air forces since the end of the Korean War, the 1982 Bekaa Valley episode may be considered an exemption, but here many specialties applied.

    It’s the third time that I post it. In the last conflicts, BVR rulez!

    in reply to: BVR vs WVR kills #2482828
    aurcov
    Participant

    With due respect this contention is almost certainly incorect. Iran used and successfully shot down Iraqi aircraft during the Iran-Iraq War in the 1980’s with the active radar AIM-54A Phoenix missile.

    With all due respect, first, no one know exactly how many (and by what type of missile) kills were Iran-Iraq war; second, AIM 54 was not a fully active missile: it didn’t have a datalink for midcourse guidance. Instead it used semi-active guidance. Only the last 10-15 misles were on ARH.

    in reply to: Good News for the F-35 Program #2492007
    aurcov
    Participant

    Sure. We could always use more LockMart press releases on here. Why not?

    Or more Kopp’s articles…:p

    in reply to: North Korea tested nuclear bomb ,again. #1816409
    aurcov
    Participant

    Definition of “International Community” Please!!!

    Do this Mythological thing called “International Community” that you tell, does have Money and Oil to spare???

    Sorry, I should say US, SK and Japan. And yes, those countries gave NorKo food, oil and money. They also offer to build them a nuclear power plant.

    in reply to: Norwegian Government select JSF #2492707
    aurcov
    Participant

    There’s also a webpoll on that article and it would seem only about 26% think their sitting socialist gov conducted a fair process.

    Something the rest of the world already knew wasnt the case.

    No sh*t!

    in reply to: North Korea tested nuclear bomb ,again. #1816433
    aurcov
    Participant

    I think they won’t stop until they develop a capability to seriously threaten the mainland of the USA (IMO within 5 years)….that would be sufficient to guarantee their own security and allow them to negotiate from a position of strength.

    :p So, the NoKo needs nukes “to guarantee their own security”??? I always thought that they need nukes to blackmail the internaltional community for cash, oil and food…

    in reply to: Good News for the F-35 Program #2492965
    aurcov
    Participant

    Well you miss-interpreted again! top speed/endurance is not relevant in this issue.

    Why does F-22 need 45% more thrust to reach same speed as F-15 ?

    I’m not arguing the value of M2.4 vs M2.5, it’s irrelevant in any case. I’m arguing
    why F-22 need 45% more thrust to reach same top speed as F-15 while consisting of much more composites and a brand new engine ?

    And my conclusion is that F-15 is more aerodynamic.

    I see that you have a problem with figures:
    why F-22 need 45% more thrust to reach same top speed as F-15 while consisting of much more composites and a brand new engine”…I wonder if those 19 tons (vs. 12.5 for F 15) would have something to do…:p :diablo: 😀

    in reply to: Good News for the F-35 Program #2493031
    aurcov
    Participant

    Woohaa!!
    Apparantly i opened pandoras box, i’m just gonna make one remark:

    @Scooter, you miss-interpreted Cola’s point.
    He was questioning why F-15 has a higher top speed then F-22 despite having less thrust, and considering F-22 need 45% more thrust to almost reach the speed of F-15, it is safe to say F-15 is more aerodynamic, and i am also confident in saying that F-15 can sprint at ~M2.5 longer and farther then F-22 at ~M2.4.

    The higher top speed of the F 15 is largelly due to its variable geometry of the intake. And, as already said, the max. speed is a theoretical one; no one had ever used a F 15 at that speed.

    About the real difference between F 15 and f 22, on Fencecheck there was a post by Dozer (later deleted ;)). He describes the diference in acceleration. He said that his fastet trip on an F 15 was 1.8 M. But to reach this speed, he must climb using a Rutowski climb profile (to start with a subsonic climb to about 36,000 feet and then perform a shallow dive in order to supersonic speed: all fighters -except the F 22-must do that). He went from 0.9M to 1.8M in ~ 120 Nmiles (in a dive, remember). Well, with a F 22 he reach 2M, in 1/3 of that distance, while climbing!!!!

    Do you still consider the F 15 better than the F 22 in aerodynamics? :diablo:

    in reply to: Good News for the F-35 Program #2496041
    aurcov
    Participant

    Then there is something seriously wrong in the layout with F-35A, -simply cause F-15 has both longer range AND far higher speed, while at the same time having less fuel.
    How is that even possible ??!!

    An F 15 with 3 EFTs has a smaller combat radius than an F 35 with only the internal fuel.

    As about max. speed, the 1.8 M should be enough. The guy who used to run the F 35 program until recently (and who was in charge of F 15 before that) told some interesting figures about this. Basically, in 30 years of service (~8000 hours) the average F 15 spent <15 min. in supersonic, rarely exceeding 1.3 M. And we are talking about F 15, a plane that was involved in more combat than any aircraft during its 30 years of service in USAF and IDAF. Sudenly the 2.5 M looks like an overkill…

    in reply to: JSF DAS range #2496834
    aurcov
    Participant

    The entire sensorsuite and usable scan area for different applications is optimized for ground attack. Much like the entire aircraft.

    It’s a passive fighter.

    Unlike -let me guess- the grippen! :diablo::diablo::diablo::p:p:D:D

    in reply to: JSF DAS range #2496847
    aurcov
    Participant

    The whole A2A profile of F-35 is defensive. The EOTS extreme limitations makes it barely worth mentioning in any other context than heads on targeting. And that still with significant limitations. And the full EOTS/DAS system is many years away from service entry.

    -In A-A, Sniper (the DAS is based on this one) can detect an plane at > 80 Nmiles:
    -the field-of-regard is 160 deg: that’s a limitation for you? Do you know better FOV for other IR sensors?
    -of course, the EOTS/DAS is many years away from service, because the platform (F35) is !

Viewing 15 posts - 391 through 405 (of 1,239 total)