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Amiga500

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  • in reply to: Super Hornet #2315946
    Amiga500
    Participant

    The SV Tomcat design had restrictions in care-free handling and was overweight by SV for most parts of the flight-envelope for general missions.

    Every fighter designed in the 60s had restrictions on carefree handling.

    The F-14 is no different in this respect. Add a FADEC and FBW, along with a rebalancing of the aero-surfaces and you’ll achieve carefree handling.

    The SH was and is the better cost-effective solution for the general missions.

    Right up until the point you are facing a competent adversary, then all the little savings look remarkably short-sighted when your cheap little aircraft cannot defend the billion dollar carriers.

    Even then, I disagree. The F-14D could drop bombs on Afghanistan when the F/A-18 E/Fs failed miserably.

    The un-refueled radius of an F-14D carrying the normal strike load (four 2,000 pound LGBs, two Phoenix missiles, and two Sidewinders, plus 675 roundsof 20mm, and two, 280 gallon external tanks) is at least 500 statute miles.

    Accompanying E/F Super Hornets have only a 350-statute-mile radius carrying about half the bomb load.

    The F-14D with fixed inlet-system to lower the related cost had not even better flight performances compared to the SH. 😎

    Have you any evidence to support this?

    It really doesn’t square with quotes such as:

    An F/A-18E/F in maximum afterburner thrust cannot exceed Mach 1.0 in level flight below 10,000 feet even when it is in the clean configuration (no external stores). At 10,000 feet, the F-14D can exceed Mach 1.6.

    The -14D has better flight performance than the SH in everything but roll rate, roll response and pitch response/rate*.

    *Even then, the pitch response applies only to certain points of the envelope.

    Additionally, the wide spacing of the F-14’s engines would allow a TVC capable design to augment roll rate.

    in reply to: Super Hornet #2315954
    Amiga500
    Participant

    Hornet E/F? Great electronics. Crap airframe.

    Grumman could have given the USN an awful lot more with the same money if they had upgraded the F-14.

    You would have seen better performance in all areas bar possibly MTBF (and those would have been much improved relative to the -14D).

    Range, speed, acceleration*, payload, payload-range, loiter-time, radar size, payload bring-back…

    all would have been substantially better on an F-14E than it is on the -18 E/F.

    *dunno where Vortex got his info from at the start of the thread – the drag rise of the SH is notorious and the swing-wing of the Tomcat significantly reduces drag rise.

    in reply to: Pak-Fa Thread episode 19 #2316074
    Amiga500
    Participant

    IMO that IRST will be reshaped 😉

    http://i29.fastpic.ru/big/2011/1114/b2/690223e29d476a5f0c1fbab4b38749b2.jpg
    http://i29.fastpic.ru/big/2011/1114/19/e8b450e455ee3f2424d62cc6252c5719.png

    Source:PARALAY

    That is interesting.

    The ziggys on the nosecone – they are big enough to be viable on the radar itself – you would trade off having your T/Rs facing forward against having more T/Rs (its a larger surface area) and you also have a much wider field of view.

    I wonder have they went down that route….

    in reply to: Lion Air commits to up to 380 Boeing 737s #560150
    Amiga500
    Participant

    Still not listed here…

    http://active.boeing.com/commercial/orders/index.cfm

    :confused:

    in reply to: 787 news thread #561309
    Amiga500
    Participant

    I suppose it will be quite useful for Airbus to note Boeing’s experiences with the Dreamliner in this area.
    It can be quite useful being second to the marketplace sometimes.

    Oh don’t worry… Airbus have been compiling “lessons learned” on the 787 for ages now!

    in reply to: 787 news thread #561555
    Amiga500
    Participant

    Typical Press sensationalism.

    Not really.

    Ask the next F&DT’er you run into.

    Are they gonna wheel out the full ultrasonic gear every time there is a wee episode of ramp rash? Dispatch times are going to take a hammering if that is the case.

    With any step into the unknown comes risks; the 787 and 350 no different.

    in reply to: Why no FSW on Comercial plane? #561869
    Amiga500
    Participant

    An interesting aside: would there ever be a new three-engined design, or has modern engine technology made that format obsolete?

    I’ll not say never, but I would say very, very, very unlikely.

    The 3-engined aircraft arose due to mis-matched aircraft size to available engine thrust. The modular concept employed in engine design since the 80s has mostly rendered this problem irrelevant.

    Additionally, there are intrinsic problems and compromises with 3-engined aircraft that make them undesirable for a whole load of reasons. They were essentially a band-aid fix to a problem that no longer exists.

    in reply to: Why no FSW on Comercial plane? #562315
    Amiga500
    Participant

    Quick comparison of a Learjet 23 to a Hansa.

    The lear has smaller engines, a smaller wing area, has a much lighter OEW, but has a higher MTOW, can climb better, has a better range and can fly faster.

    The Lear 23 became the template for bizjet design.

    The Hansa… well…

    in reply to: Why no FSW on Comercial plane? #562341
    Amiga500
    Participant

    My “so-called” aeroelasticity definitely applies to subsonic flight.

    Google is your friend.

    in reply to: Why no FSW on Comercial plane? #562361
    Amiga500
    Participant

    To the OP: This is not Airliners.net. We do not use acronyms for everything here.

    Surely you mean:

    To the Original Poster: This is not Airliners.net. We do not use acronyms for everything here.

    :p:p:D:D

    in reply to: Why no FSW on Comercial plane? #562366
    Amiga500
    Participant

    There is no fundamental different structure between FSW and BSW.

    No additional weight growth compare to Backward Swept Wing, if you understand their structure by sharpe.

    No internal volume reduced by same reason above

    Yes there is.

    Google “aeroelastic stability” and/or “aeroelastic divergence”.

    What’s certification?

    Proof that you can deal with the afore mentioned aerelasticity issues throughout the life of the aircraft and in the event of impact damage to the leading edge.

    in reply to: Why no FSW on Comercial plane? #562571
    Amiga500
    Participant

    – questionable aerodynamic benefit over a well designed wing
    – weight growth
    – reduced wing internal volume for fuel
    – certification
    – uncertainties over structural life-span

    Pick any one… it’ll all work out with the same end result. 🙂

    in reply to: 787 news thread #563082
    Amiga500
    Participant

    Why are you slandering the maintenance techniques of ANA by alluding to the possibility that they just ‘walked away and left it’?

    You (not you personally Amiga) really have to think that Boeing released this aircraft (and the FAA certified it) with a published set of inspections for occasions like this – for all areas of the aircraft.

    All airlines are under time pressure to dispatch; I’m not in any way singling ANA out – they are no different from any other, and probably better than most.

    The inspection techniques now needed for what are now PSEs (such as a rear fuselage section around a cargo door) are far more time intensive than historical metallic inspections.

    Its only a matter of time before someone cuts 1 corner too many to meet scheduling.

    in reply to: 787 news thread #563292
    Amiga500
    Participant

    Flight global

    This is indicative of why I’m not stepping on a B787 or A350 any time soon.

    All Nippon Airways has admitted that its first Boeing 787 suffered some slight surface damage to its engine inlet cowl after it hit a passenger boarding bridge.

    The incident took place while ground crew were towing the aircraft, JA801A, on 13 October, said the spokesman.

    He added that the Rolls-Royce Trent 1000-powered aircraft suffered only surface damage, and that it resumed regular flight tests on 14 October after the company did some checks.

    “Everything was fine. There was only some surface damage, and the aircraft was back in operation on schedule,” said the spokesman.

    So they did extensive NDT of the local laminates? Aye… I’m sure. :rolleyes:

    Its only a matter of time before something is declared OK when its really not even close. Hopefully it can be caught before an aircraft is lost.

    It also shows up the complete bulls!t branded about a few pages back about “managing” ground ops. :rolleyes:

    in reply to: 787 news thread #564256
    Amiga500
    Participant

    Re- Vega

    Ah-ha – good thinking.

    Cheers! 🙂

Viewing 15 posts - 1,636 through 1,650 (of 2,151 total)