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Castor

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Viewing 15 posts - 31 through 45 (of 156 total)
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  • in reply to: Singapore say No to Eurofighter!!! #2612658
    Castor
    Participant

    I don’t know about you guys, but in terms of politics and personality, Americans and French are pretty damn similar.. the only difference is the Americans tend to win wars.

    *cough*
    Guess you really showed the french how to handle Vietnam the proper way?
    *cough cough*

    in reply to: 787 success leads to talk of 737 replacement #685511
    Castor
    Participant

    yes, composites are less dense, yes composites are stiff and YES THEY ARE AXIALLY STRONG. An airliner rib has forces acting on it in all 3 axes. which means at least 1 layup in the direction of the load (3xlayups) plus 1 lay up 45 degrees either side of the direction (a further 6x layups) totalling 12 layups. theres your weight and volume considerations out of the WINDOW. a metallic rib can do the same job lighter, and it will plastically deform before breaking for a composite rib so it WINS on an engineering viewpoint. not necessarily a political view point.

    Here I must support Coanda for summing it up quite nicely. This is what it’s all about – knowing your load paths. In some structures composites are really superior – that’s the kind of problems where the structure is taking loads in a specific direction. But if your structure is exposed to loads from all kinds of directions you’ll end up having a design that is bigger and heavier than a lightweight metal construction.

    regards,
    Castor

    in reply to: F-18E performance #2614857
    Castor
    Participant

    Was that in “war-time” several thousand miles from home? Please do not stretch the comparisons too far!

    I classified this as a sidenote. But I wouldn’t be surprised if the US carrier groups have far better equipment and gear to repair fighters than what SweAF has when they go abroad for a joint exercise. The latter was based in hardened aircraft shelters in northern Norway where the temperature was way below zero degrees Celsius – even inside these shelters. Try making some qualified repairs in that climate.

    regards,
    Castor

    in reply to: Singapore say No to Eurofighter!!! #2615047
    Castor
    Participant

    And I suppose you have a credible source for this information?

    in reply to: F-18E performance #2615642
    Castor
    Participant

    Mission Capable Rate – Operation Iraqi Freedom

    EA-6B 80.4
    F/A-18C 87.3
    F/A-18E 89.7
    F-14A 89.2

    Wow, the F-18E has a mission capable rate 00.5% better than a 30 year old F-14A. :rolleyes:

    As a sidenote, Jas-39 Gripen – which also uses a variant of the GE-F404 engine, achieves a mission capable rate of 98.0%. Last time this was shown was during Joint Winter operations in northern Norway. That would be somewhat near a benchmark for the newer F/A-18E Super Hornet, not those 89.2% of the Tomcat, which is a older generation fighter.

    regards,
    Castor

    in reply to: RYR Emergency Landing Tonight!! #696445
    Castor
    Participant

    Why do they block this front rows during summer operations? Is it because the engines produce slightly more thrust during (cold) winter operations – and hence gets better acceleration making them able to deal with the heavier aircraft?

    regards,
    Castor

    in reply to: RYR Emergency Landing Tonight!! #738523
    Castor
    Participant

    Why do they block this front rows during summer operations? Is it because the engines produce slightly more thrust during (cold) winter operations – and hence gets better acceleration making them able to deal with the heavier aircraft?

    regards,
    Castor

    in reply to: F-18E performance #2617187
    Castor
    Participant

    Keep in mind our opinions are totally pointless in this matter because as I said we won’t ever fly the thing or operate it.

    In that case we shouldn’t discuss the matter of modern combat jets at all. And besides, there might be people on this board that have real-life experience of modern combat jets, may it be as engineers, technicians or pilots. Not everyone wants to go public on their profession and experience.

    regards,
    Castor

    in reply to: Raptor 4003 damaged by wake turbulences #2618322
    Castor
    Participant

    “The pilot’s control inputs – while appropriate for the sensed motion, investigators say – ended up 180° out of phase with g, and contributed to the oscillation’s severity.”

    Which is why pilots should be blocked out of the system during such events.

    Castor
    Participant

    My claims about the numbers of fighters, summer 1952, are from:
    ‘History of military aviation’ by Bill Guston, Octopus Publishing Group Ltd. 2000.

    Castor

    Castor
    Participant

    About this Mig-15 vs. F-86 discussion; there were three things that troubled the F-86:
    1. It couldn’t take nearly as much fire as the Mig-15 could. (Atleast according to Jevgenij Pepeljajev who noted 19 F-86 kills).
    2. They were at some times – totally – outnumbered. Summer 1952 there were more than 300 Mig-15’s operating from the fields near Antung but only 89 F-86 (a).
    3. The migs were at the start flown by really experienced russian aces. When these left the scene, the inexperienced chinese pilots were easy kills.

    regards,
    Castor

    in reply to: Greece rethinks Eurofighter deal #2620014
    Castor
    Participant

    I’ve said it before and I’ll say it again – why do they need 3 (three) different fighters to fulfill similar needs? Introducing another fighter will only make their logistic and training cost sky rocket.

    Stick to the Mirage and F-16, they’re good enough, and use the money on weapons and training. Or on other smart things, such as Awacs (or in this case Erieyes).

    regards,
    Castor

    in reply to: INTERESTING SHIPS #2054822
    Castor
    Participant

    There’s previously been some talk about the swedish Visby corvettes, but let’s have a look at the demonstrator which served as the basis for the YS2000-project (which obviously became Visby) – Smyge! Having seen norwegian Skjold class being introduced about ten years later I would say that either it’s a copycat of Smyge, or simply two designs made to fulfil similar needs.

    (And btw, doesn’t Smyge look a bit better than this Skjold thing? :diablo: )

    Edit: Oops. Those pictures came in the wrong order; upper one = Skjold, lower one = Smyge.

    Castor
    Participant

    I honestly don’t think that any airforce is too keen on showing their hud pictures of kills. Why would you wan’t to reveal your successful tactics during dogfights? Ok if the manufacturer wants to brag a bit about the fighters capabilities, but in that case I would say that they would restrict such information to the possible buyer. And definetely not go public with it.

    regards,
    Castor

    in reply to: New Zealand's Helo choice??? #2624488
    Castor
    Participant

    GarryB proposing something russian. Why am I not surprised? 🙂

Viewing 15 posts - 31 through 45 (of 156 total)