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Amiga500

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  • in reply to: The PAK-FA saga Episode 12.0 #2427003
    Amiga500
    Participant

    Of course the fact of the matter remains that NO ONE has yet to show a possible internal configuration of those inlets that would allow for the engine to be entirely hidden from view from all frontal angles.

    What!?!

    The damn thing goes down, then intoward the centreline, then up to the compressor face.

    It is as obvious as night following day.

    If you are going to basically accuse Sukhoi engineers of being stupid, and neglecting a basic of radar signature reduction, your the one that needs to produce the evidence. Evidence BTW, is not running a glass eye seeing what it wants to over early drawings based on a few photos.

    in reply to: The PAK-FA saga Episode 12.0 #2427006
    Amiga500
    Participant

    First up, apologies for the 3 photos – admin, if you want them just as links, go ahead and change them at your discretion.

    You’re so confident (and arrogant) and yet you are wrong.
    http://img392.imageshack.us/img392/7500/intakes3.jpg

    What depth perception do you have on that? Zero.

    http://forum.keypublishing.co.uk/attachment.php?attachmentid=182889&d=1268239996

    Examine this photograph.

    We KNOW that the front nose gear is shorter than the rear.

    Therefore, we KNOW the aircraft is at a nose down attitude relative to our viewpoint.

    But wait… why do we see the upper inner surface of the intake duct?

    Because Sukhoi are dropping the duct down then up to shield the compressor face.

    Here, this brightened version of the above may help:

    http://i903.photobucket.com/albums/ac232/derstig/pakfawingspan03_bleached.jpg

    in reply to: The PAK-FA saga Episode 12.0 #2427020
    Amiga500
    Participant

    Which would also mean highly degraded performance.

    Oh, shush.

    Ridiculous statements like that do nothing to convince others you actually know what you are talking about.

    The inlet curvature would be no worse than the YF-23… and if I recall correctly didn’t Northrop boast of a higher cruise speed than the YF-22?

    in reply to: The PAK-FA saga Episode 12.0 #2427022
    Amiga500
    Participant

    It’s very inaccurate actually. Again:

    http://img96.imageshack.us/img96/7403/intakes2.jpg

    Red lines = center of the engines.
    Red dot = center of the engine.
    Red circl = engine inlet.

    Again?

    The engines are clearly canted inward. That means the red line you’ve drawn is NOT the centreline of the engines.

    Until you and Kapedani realise that, this discussion is pissing into the wind.

    in reply to: Silver lining to KC-X? #2427211
    Amiga500
    Participant

    Regardless, it doesn’t matter much because tankers don’t operate out of austere FOBs for the simple reason they don’t have enough fuel available. A perfect example is how the tankers for Afghanistan operate out of Manas in Kyrgyzstan. Having to operate from a base a long way from the action is becoming typical and really shows off the advantage of the longer-ranged KC-30

    As well as the big ripe juicy target a fuel heavy tanker represents when taking off….

    in reply to: Silver lining to KC-X? #2427220
    Amiga500
    Participant

    “Boeing had initially selected Pratt & Whitney PW4062 engines for its KC-X entrant, but has reportedly considered General Electric’s GEnx engine developed for the 787 and 747-8.”

    I’ll re-write that for you.

    “Boeing had initially selected the compatible and already in use Pratt & Whitney PW4062 engines for its KC-X entrant, but now that Northrop-Grumman has withdrawn it is considering the expensive integration of the General Electric GEnx engine developed for the 787 and 747-8. Boeing has denied the allegation that the challenge of integrating the engine will be used as a means to hide program costs rises in other areas.”

    I knew they would shaft you folk after “winning”… I didn’t quite know they’d have the brass neck to announce it after one day.

    in reply to: No Bid for NG/EADS Tanker #2427334
    Amiga500
    Participant

    Boeing would probably have come back, based on teh new criteria, with a KC-777.

    Unlikely… unless they were to open another 777 line. As far as I am aware, there are nowhere near enough slots in the existing 777 line to fit the tankers in.

    I also don’t know if there would have been enough in the tanker order to justify opening a completely new line either.

    in reply to: Gripen NG beats SU-35 in a2a #2427343
    Amiga500
    Participant

    However if you are stealthy, you have a much greater chance of breaking a missile lock.

    At terminal maneuvering range?

    Who you trying to kid?

    Here’s one from a LM press release-

    http://www.f-16.net/news_article3063.html

    It is known a development freeze of the F-35 does not match the F-16 in sustained turn rate.

    In fact, it cannot match the F-4E.

    Unsurprisingly, Lockheed lie and people believe them.

    http://www.military.com/features/0,15240,186349,00.html

    http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=defense&id=news/F35-030509.xml

    maximum speed of Mach 1.67; acceleration from Mach 0.8 to Mach 1.2 at 30,000 ft. in 61 sec.; a top turning speed of 370 kt. at 9g and 15,000 ft.; and a sustained turn capability of 4.95g at Mach 0.8 and 15,000 ft.

    An F-16 will go from 0.8 to 1.2 in under 30 seconds at 30,000ft!

    in reply to: No Bid for NG/EADS Tanker #2427419
    Amiga500
    Participant

    Thanks NuLabour/MOD, your treatment of this country has been nothing short of treasonous.

    Fixed that for ye 😉

    in reply to: Gripen NG beats SU-35 in a2a #2427420
    Amiga500
    Participant

    You’re missing my point- from an agility standpoint, there are negligible differences in survivability in modern fighters.

    No. There are not. Typically before finding yourself in the situation of having to dodge a missile you will have been maneuvering. If your aircraft bleeds off more energy, then you are in a more vulnerable energy state when it comes to trying to avoid the missile.

    I wonder if you’d care to provide the numbers for comparison.

    Care to provide the statements?

    The airframe in question will allow that F-35 a far higher degree of survivability against modern SAMs and fighters, than those with higher RCS, which will need raw performance, to have any chance of getting home.

    In my opinion many F-35 pilots are going to pay in blood for this lunacy.

    Effectively, the F-35 is gonna be caught with their hands in the cookie jar… and have no fall back excuse to get out of trouble.

    in reply to: Gripen NG beats SU-35 in a2a #2427425
    Amiga500
    Participant

    What sorts of radars were in use during that period though? MSA, with a single signal. Modern LPI techniques are significantly different, just due to the nature of AESA designs.

    It is a research paper. Done at W-P AFB. Sponsored by the USAF (just to keep you up to speed, that is the same organisation that introduced the LPI AESA radar on the F-22).

    Why on earth do you think they would be limiting their thinking to a mechanical radar?

    :confused:

    in reply to: No Bid for NG/EADS Tanker #2427435
    Amiga500
    Participant

    The A400 and its engine come to mind.

    In keeping with:

    I for one do not like to see the general public (anywhere) get shafted by corporate greed through ****ty govt decisions.

    They should have went with the Pratt & Whitney option.

    The head of whoever forced that decision should be on a proverbial plate (i.e. they are sacked).

    in reply to: No Bid for NG/EADS Tanker #2427440
    Amiga500
    Participant

    I’ve never seen so much alleged “concern for the American taxpayer” by people who are not American taxpayers as on this forum. It’s kind of hard to believe actually.

    I for one do not like to see the general public (anywhere) get shafted by corporate greed through ****ty govt decisions.

    The US taxpayer has been shafted by the bankers just as much as the UK taxpayer. Why the **** are all of the profits of the investment banks not immediately being ploughed into the treasury to replace ALL of the money spent shoring up the economy they broke (and not just the money used to directly shore them up) is beyond me.

    in reply to: KC-X round 3 FINAL RFP #2427605
    Amiga500
    Participant

    Soon Asia and russia will take market share from them both. 🙁

    ‘specially with the way Airbus runs itself these days.

    Engineers are no longer in control. Bean counters (procurement) are running the show.

    in reply to: F-35 News and Discussion #2427792
    Amiga500
    Participant

    I’d think all aspects. For instance why would 0.001m^2 be considered VLO from the front but not other angles? Also would it really be considered a VLO aircraft if it was 0.01m^2 from the front and 0.5m^2 from the back and sides? People get caught up in “in only needs to be stealth from the front” but as soon as you’re in the other guy’s airspace (if not sooner) people are going to be trying to find you from EVERY direction.

    What about the wavelength of the radar your facing?

    Lengthen that radar wave, and pretty shortly you’ll find those decibels rising, and rising damn sharply!

Viewing 15 posts - 2,056 through 2,070 (of 2,151 total)