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Viewing 15 posts - 601 through 615 (of 954 total)
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  • in reply to: So which country will upgrade its F/A-18s with AESA? #2238616
    LowObservable
    Participant

    Finns, Swiss, Malaysia all have late-production jets – the JAS 39E may replace the Swiss jets eventually, but you could still get a decade out of them. And as I understand it, RACR and SABR are (1) less expensive than APG-79/80 and (2) more importantly, easier to install and integrate.

    in reply to: McDonnel Douglas' JAST. whats wrong with it? #2286492
    LowObservable
    Participant

    1 – There was a strong prejudice against lift-plus-lift/cruise. Part of this was just a hangover from the original DARPA STOVL program, which did not look at LPLC because it had been tried before and it was thus not DARPA’s job. Part was a belief that it was heavy and complicated, but then nobody realized that SDLF drove a ton of extra weight into the lift engine.

    2 – In the 1996 downselect, the institutional winner – the one from the DARPA program that convinced everyone that it could be done – was SDLF. Boeing offered a potentially much cheaper solution but with more risk. Historically, a lot of two-type flyoffs have chosen one low-risk candidate and one higher-risk, higher-payoff contender.

    There were other factors involved, though, including the fact that the “Dream Team” had been pulled together late in the day. But the fact remains that the MD design could have been attractive in many ways… a stock F119, probably better ground footprint &c.

    LowObservable
    Participant

    Spud – The SA, I believe, has the same display processor (which in Boeing-world is where the fusion goes on) and BAE DEWS as the SA.

    LowObservable
    Participant

    Wow, Spudman is all but calling Korea for Boeing. I can hear corks pop in STL from here.

    LowObservable
    Participant

    LM did not go to the DoD asking for the schedule to be cut back.

    No, and so what? They were so effbombed-up that they didn’t know how late they were. Either that or their top people were lying in every brief they did in 08-09.

    The DoD decided to cut the schedule in order to pay for a stretched out SDD timeframe and to lessen the impact of concurrency.

    Yes, they did.

    They could have poured billions more into 2010-onwards funding (over and above the projected FYDP profile) to pay for more production but did not because (1) LM’s delays and incompetence had increased the concurrency risk and (2) production was late as it was. LM is only just catching up with the schedule for the first time since 2008.

    And the GFC had precisely bleep-all to do with it, and nobody in charge has ever said that it had.

    LowObservable
    Participant

    btw, it was not the program’s failure to execute the schedule, but a failure to fund the schedule due primarily to the global economic crisis.

    Horsefeathers.

    http://www.dodbuzz.com/wp-content/uploads/2010/03/Carter-F-35-REstructure-Memo.pdf

    LowObservable
    Participant

    Spud – The numbers were from early 2010 and are what the schedule plan was at the time before the recent budget crisis and fear of concurrency caused the annual build rates to be chopped.

    So the total failure of the program to execute to schedule in 2007-10 had nothing to do with it?

    Actually, the numbers were from Oct 2010. By that time, Venlet’s Technical Baseline Review was well on the way to demonstrating that the point at which FRP could be approved (that is, completion of DT & IOT&E) was much further out than previously claimed, and the idea of US and partner rates hitting 125-150 by late 2014 was clearly moonshine.

    Also, note that none of the so-called 4gen fighters is vanishing from the scene as planned.

    LowObservable
    Participant

    Snafu – I was just about to say that it’s a bit of a larf coming from someone who thinks that the resin-and-PPT CUDA is real.

    in reply to: F-35 Debate thread (2) #2291253
    LowObservable
    Participant

    SC on the Phoon was not a set requirement (thou shalt sustain M>1.X without AB in such a configuration) but a fall-out from supersonic maneuver.

    Rii is correct to define it as level flight at M>1.2 without AB. Realistically, fuel load and weapons should be included.

    As for direct comparisons, we’ll have to wait a long time. On the other hand, one can readily look at sweep angles, fineness ratios, dry T/W (armed and with comparable fuel fractions) and engine cycles, and conclude that if the JSF can even squeak into the SC category, the Phoon will certainly SC at >1.2.

    in reply to: Saab Gripen & Gripen NG thread #3 #2291896
    LowObservable
    Participant

    Spud – Of course everyone realizes that.

    However, that looks like the near-to-real-world in-service C/D + AIM-120B gets pretty close to the loftiest simulated LERs (600 per cent superior) claimed for certain aircraft that may be operational with a competitive air-to-air armament suite a couple of years later than the JAS 39E/Meteor combo.

    in reply to: F-35 debate thread. #2301812
    LowObservable
    Participant

    — T3 tech demonstrator (part of the NGM/JDRADM program) is due to fly this year
    — New Motor from ATK with Dual-pulse, new case, new nozzle, etc is due from development this year
    — Follow-on dev for 9X Blk3 is already started
    — Follow-on dev for 120D+ is already started

    Wake me up in another seven years, when some of that dreamy stuff is within another five to seven years of doing something useful, because for some strange reason there is no extra money in the Tacair piggy bank right now.

    in reply to: F-35 debate thread. #2301901
    LowObservable
    Participant

    The way to build long range into a Navy LO strike platform is to not try to make it supersonic.

    The F-35C has failed totally in this regard, because it carries all the penalties of a supersonic configuration (wing span, area and section not optimal, compromised inlets &c) but its lousy acceleration indicates that the supersonic regime will be tactically unusable.

    in reply to: Danish Air Force fighter competition #2301971
    LowObservable
    Participant

    I suspect that the “F-104S factor” may play against the F-16V. If the whole EPAF could be swung over to a “bridge”, maybe, but that is not going to happen.

    Rafale is out of Denmark because the French know that they are not going to win. The same way as Typhoon bailed out of the Netherlands but apparently for different reasons.

    in reply to: Saab Gripen & Gripen NG thread #3 #2301977
    LowObservable
    Participant

    Sign – I can look out of my window every day and see the local flightpath. And it often occurs to me that if anyone had said, when I started in this business, that half the jets in the stream would be made in Brazil in XX years’ time, they would have been led away and sedated.

    So making IKEA jokes doesn’t mean that I don’t think it might happen.

    in reply to: F-35 debate thread. #2301998
    LowObservable
    Participant

    Re: HTK

    It’s dumb to conflate the plastic-and-PPT Cuda with Stunner/Python 6, which is based on a real, flying-today missile from a proven AAM provider and has a known seeker technology (IIR + MMW AESA) and a known aero-propulsion system that wiill permit some rather fancy endgame moves.

Viewing 15 posts - 601 through 615 (of 954 total)