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Scorpion82

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Viewing 15 posts - 61 through 75 (of 4,105 total)
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  • in reply to: F-35 News and discussion (2016) take III #2195473
    Scorpion82
    Participant

    Well… it seems the NAO didn’t do a proper job with its original estimates. Here are numbers from a 1997 Congressional Budget Office analysis.

    http://i.imgur.com/fMt5Sjm.jpg
    http://i.imgur.com/8ZSaHfQ.jpg

    http://i.imgur.com/NCGKNFm.jpg

    That’s a unit flyaway cost of $70 mil and unit acquisition cost of ~$110 mil.

    Current estimate is $80-85 mil flyaway and unit acquisition cost ~$150 mil.

    (^Adjusted for inflation.)

    Did you take into account that at this time the US planned for almost 3100 aircraft for itself? 2036 USAF, 480 USN and 609 USMC.

    Scorpion82
    Participant

    5.5 m2. Not accounting for the LERX which come on top.

    in reply to: MiG-29 shortlegged? #2197535
    Scorpion82
    Participant

    The table below shows the fuel load in different MiG-29 variants. Data for latest versions could change as there are photos of MiG-35 with 4 drop tanks (and a refuelling kit).

    [ATTACH=CONFIG]246998[/ATTACH]

    http://alejandro-8en.blogspot.co.uk/2016/07/fuel-load-in-different-mig-29-variants.html

    Doesn’t match the figures I have gathered over the years, but in kg instead of l.
    These are:
    9.12 = 3190 kg
    9.13 = 3480 kg
    9.15/9.31 = 4460 kg
    9.17/19 = 4775 kg
    9.61/41 = 5200 kg

    So the original M/K had close to 50% more internal fuel, newer versions even more than 50%.

    in reply to: F-35 News and discussion (2016) take III #2201858
    Scorpion82
    Participant

    It is an issue, but it is a policy issue and not one that is unique to the F-35. Did France give Egypt its most complete threat library when Egypt bought the Rafale? Do the Saudi Eurofighters have the exact same libraries as all other Eurofighter operators? There is no way to know, but it is a perfect example of the same problem.

    It is somewhat complicated in this case by the fact that the US anticipates operating side by side with the other F-35 operators, but given that the US is by definition willing to export its latest and greatest stealth fighter to these buyers I see no reason to doubt they will work it out.

    Certainly not. The electronic logistic system of the Eurofighter is managed on a national basis, meanwhile the operators don’t even operate the same systems anymore.

    In the F-35 programme everyone is using the globally connected system to exchange data. It’s good for the logistics part, but mission planning and mission data generation should be separated. I don’t think that not sharing all mission data is not that problematic at all. One solution would be a shared mission data baseline common for all and national adaptions where necessary.

    in reply to: F-35 News and discussion (2016) take III #2201925
    Scorpion82
    Participant

    Not sure why it is amusing and the problem is not new, it has been known about for a long time. The issue is one of policy not technical capability and that some partner nations want sourcing, not straight loads.

    I would expect that should a near peer conflict occur these concerns would quickly become non issues…

    Something like this should be planned from inception. The US itself certainly don’t want to share all of its data concerning emitter and signature libraries/templates and the same is true for other operators. If you plan a programme like this with international partners involved you know about this. It’s an organizational issue that could have been avoided quite easily.

    in reply to: F-35 News and discussion (2016) take III #2202077
    Scorpion82
    Participant

    https://www.flightglobal.com/news/articles/sharing-secret-f-35-data-gives-usaf-new-problem-426884/

    There are concerns about the data consistency among the various F-35 program partners for the aircraft’s MDFs.

    Somewhat amusing that apparently no one appears to have thought about it. The question is whether the US itself would compromise its own data for platforms such as the F-22 or future designs like the LRS-B.

    in reply to: F-35 News and discussion (2016) take III #2202499
    Scorpion82
    Participant

    Are you trully comparing a reported Danish acquisition number cost based on a “interesting report” (and to put it mildly, questionable) without a signed contract with the Brasilian program that includes the development of a twin seater, an in house building line, a new data link and a new cockpit?

    Let alone that the comparison is programme acquisition cost vs unit fly away cost. But let people believe their sh!t.

    in reply to: F-35 News and discussion (2016) take III #2202539
    Scorpion82
    Participant

    BTW 0 losses in dogfights is also true if no dogfight occurred.

    Lol. Indeed.

    in reply to: What will Germany replace The Tornado with? #2203551
    Scorpion82
    Participant

    So is this supposed to be CGI of their potential FCAS design?

    https://www.flightglobal.com/assets/getasset.aspx?itemid=67469

    FCAS is not a single design but a system of systems. What we are talking about here is the Next Generation Weapon System, which is the German MoD’s working title for the “Tornado successor”. Thus far it’s a concept what we are looking at and most likely not a final design.

    in reply to: What will Germany replace The Tornado with? #2203555
    Scorpion82
    Participant

    Maybe. But i doubt the US would haved blocked the sale of Sparrows to the Germans if they had requested it. Hard to believe the US would be OK to sell them to Iran, South Korea or Japan but not to a close NATO ally. The only reason Germany didnt get AIM-7s-capable F-4s was due to financial reasons and by the early 80s they were already trying to rectify that shortcoming when the ICE upgrade program was launched. Note that the US didnt seem to mind that the Germans were adding an advanced BVR capability (AMRAAM) to their Phantoms despite those so-called “restrictions”…

    Iran was a quite close ally back then, so was South Korea. WW II wasn’t that long ago back then. The ICE programme for the F-4F was only launched in the mid 80s and was introduced in 1991, by that time more than another decade or so has passed. Financial reasons were certainly not a reason. Argueably the GAF didn’t have any experience with BVR capability, it was relatively new anyway and possibly not fitting to well into the ConOps back then, add what I already outlined. The USAFE and RAFG were primarily responsible for defending German airspace back then. The GAF only augmented them, that’s why there were only two dedicated fighter wings available from the mid 60s.

    At the end of the day it doesn’t really matter, they didn’t get a BVR capability before 1990 with the adoption of the MiG-29 from the former GDR AF and 1994 when the GAF finally bought some AMRAAMs for its F-4F ICE.

    in reply to: F-35 News and discussion (2016) take III #2204239
    Scorpion82
    Participant

    Well why don’t you explain why a tactical bomber like Su-34 with fixed air-intakes, carnards, large humpback for fuel12,400kg and side-by-side crew cockpit has a higher speed regime over F-35A? I mean sinse you seem know..

    Because the Su-27 was designed for greater speeds. It’s all about drag in the speed range and its relation to thrust, with the engine intake combation designed for it. The Su-34 retains the basic design, though it lacks the ramps to achieve greater thrust efficiency at higher speeds and is probably somewhat draggier as well. The principal limiting favtor here, however is the intake.

    in reply to: What will Germany replace The Tornado with? #2204268
    Scorpion82
    Participant

    I don’t know. Maybe because had full souvereighnity over its airspace?

    in reply to: F-35 News and discussion (2016) take III #2205138
    Scorpion82
    Participant

    The issue comes from LM defining Supercruise as > M1.5 but if we stick with the conventional definition then the quote is pretty clear.

    Some have argued that the above is not possible, or that small/limited AB is required, but supporting evidence for the above comes from an interview with RAAF SQNLDR Andrew Jackson who stated specifically flying at M1.2 @ 40k. He wasn’t asked about SC, he stated those numbers at the end of the interview in the context of how much he enjoys his day and being able to fly the aircraft. For me Jackson’s comments are the evidence that supports the original claim.

    There was Lt. Col Griffith stating

    “What we can do in our airplane is get above the Mach with afterburner, and once you get it going … you can definitely pull the throttle back quite a bit and still maintain supersonic, so technically you’re pretty much at very, very min[imum] afterburner while you’re cruising,” Griffiths said. “So it really does have very good acceleration capabilities up in the air.” (Lt. Col. Griffiths, from a defensenews article)

    in reply to: F-35 News and discussion (2016) take III #2205243
    Scorpion82
    Participant

    The question is whether the F-35 can actually do this in the first place. A while ago it was stated it could sustain mach 1.2 with very little afterburner. So to speak min AB setting. Suddenly its “once there it does it on mil power”.

    To come back to your question there are some limited scenarios were a limited supercruise capability can be useful. For example when fleeing out of hostile airspace or if you intend to pass more dangerous areas more quickly. It can be useful for certain intercept scenarios and it can help to cut down reaction times further to accelerate to even higher speeds for a BVR engagement. It can also help to position yourself faster. It’s still not the same as cruising at f.e. M 1.5+, but it nonetheless gives you a 1/4 to 1/3 speed advantage over cruising in the high subsonic region.

    in reply to: What will Germany replace The Tornado with? #2205373
    Scorpion82
    Participant

    Bear in mind that Germany was completely demilitarized after WW II. When the FRG rearmament programme began in the mid 50s several restrictions were imposed on the size and capability of the German armed forces. The FRG furthermore was only partially souvereign until the reunification. Its airspace was mainly controlled by the US and the UK. The GAF’s fighter wings only augmented the USAFE and RAFG units.

    As stated the F-4F was a cut down version of the F-4E with a degraded radar and inability to support the Sparrow as well as PGMs. I doubt the GAF said it didn’t want the then still new BVR capability. It was simply not approved to them at that time.

Viewing 15 posts - 61 through 75 (of 4,105 total)