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Tu22m

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Viewing 15 posts - 151 through 165 (of 1,142 total)
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  • in reply to: Saab Gripen & Gripen NG thread #3 #2212896
    Tu22m
    Participant

    In other news: Ukraine returns to the idea of Swedish JAS-39 licence production

    http://info-news.eu/ukraine-returns-to-the-idea-of-swedish-jas-39-licence-production/

    Thoughts on this?..

    Cheaper and better than whatever they have now. Unfortunately thr Russians have already taken most of the Ukrainian industry, killed all gas contracts and will continue to destabilize Ukraine until there is a pro Russian regime and thus there will be no deal.

    In the end it would only mean that Putin will get Gripens for cheap.

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2215216
    Tu22m
    Participant

    In what way? Give an example. Clearly is close enough to the Jane’s figure to be talking about the same thing but also enough higher to be noteworthy.

    Actually it was a rethorical question because i knew you didnt have an answere to it. Janses actually do a pretty good job in producing somewhat apples to apples numbers. Read how they calculated and weighed their numbers and you will see that it is pretty decent work.

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2215219
    Tu22m
    Participant

    I think we need to clarify what WVR is here. I wouldn’t class a rocket launch at 800nm as within Mk1 Eyeball range.

    That’s entirely true. The F35 in this case was flying over Quebec while testing out the “not a baseline JSF mode”. Or, if they flipped the video horizontally they where just south of Nasau or North of Cuba depending on how you put it. That is impressive performance!

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2215413
    Tu22m
    Participant

    Yeah good try.
    http://imageshack.com/a/img674/1092/MpiGJ3.jpg

    So basically it’s a case of paying 80% of the F-35 unit and operating costs for a plane that can be easily detected and shot down BVR.

    The other planes in the running for the same contracts.

    Wow, I like your apples to apples comparison.

    Are capital cost and/or write-downs included?

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2215829
    Tu22m
    Participant

    Potato Head

    Please explain, with documentation, why the F-35 simulators are “the best ever built”.

    Please produce quotes and evidence that show how the F-35 simulation will provide more effective training than other training systems.

    Please explain exactly why and how the F-35’s sensors will be better than contemporary versions of APG-79/Raven, IRST/Litening 4, Spectra &c, without resorting to unverifiable claims about fusion magic.

    Please also outline how the operators (particularly outside the US) will be able to access, control and understand the “fusion engine” in the F-35, so that they will not have to tell the Hague that the software black box told them to shoot the school bus.

    Describe the means that the F-35 has to record and download sensor data for post-action review (as is built into Litening 4).

    Everything is better with the F35 because O’Bryan and hopsalot said so. It’s sort of the same as for the iPhones, all fanboys say they are the best but nobody can say why.

    in reply to: Best aircraft for the current mission against IS #2219044
    Tu22m
    Participant

    I guess it depends a little on the mission, but the usual suspects (sorted by cost) would be…

    Drones (though limited in bandwidth, ability to get close when needed and weaponry)
    A10/Frog foot (pretty much what they are made for)
    Gripen E (if a faster and more survivable bird is needed, with high sortie rates, low costs etc)
    AC130, probably the biggest nightmare for ISIS. Once in place it will stay there until all ISIS operations in the area are over. That plane has more ammunition per mission than ISIS has soldiers in any given place.

    in reply to: The PAK-FA News, Pics & Debate Thread XXIV #2226458
    Tu22m
    Participant

    My emphasis in bold. They are mixing units up, one byte is 8 bits, 1 MB/s = 8 mbps.

    Obviously 72 MB in 3.5 seconds can’t be >72MB/s, this simply does not compute. In megabytes, the Raytheon numbers would be ~20 MB/s based on the transfer example (and an implied maximum of 34.25MB/s based on the mpbs figure, but that’s secondary as we have no direct quote of this).

    So, if the quoted Russian numbers are correct (ie 34 MB/s), they are faster than Raytheon based on the example given by the latter (72MB in 3.5 seconds). But if one considers the Raytheon 274mbps number (again, it doesn’t directly reflect the actual transfer example given, but let’s assume that it’s the important number to look at anyway) then they are just a tad faster (the Russians would clock in at an ever so slightly slower 272mbps based on their example). Then again, if the same difference between optimal speed (burst speed?) and actual volume transferred over a given time were to be observed, then the Russians would potentially be faster again, I guess. It’s a tad confusing, so this is why people should stick to coherent practices.

    But – and this is the one major caveat – if the Russians were also talking about megabits from the get go and ALSO messed up the units, then it’s the other way around and they are indeed much slower.

    There is a simple rule… Higher frequencies give shorter range but more data transfered, lower frequencies give less data but much greater range.

    I have a datalink at home that can transfer data at up to 1000Mbps or up to 125MB per second. Unfortunately the range isnt quite suitable for BVR communication.

    Yes, its a router with 802.11ac support.

    in reply to: Stealth fighter effectiveness in SEAD , DEAD #2228383
    Tu22m
    Participant

    in theory you could if you know the partten but I think that would be like guessing WPA2 WiFi password

    The encryption algorithm has nothing to do with password entropy other than being a limiter.

    in reply to: Stealth fighter effectiveness in SEAD , DEAD #2228593
    Tu22m
    Participant

    using fuel as a heat sink may cause the unwanted effect of transforming part of the fuel into dead weight
    that can not be used for propulsion,
    like mig-21 was stuck with part for balance purpose
    -less time airborne, -less usable fuel fraction

    Using fuel to dump heat is pretty old stuff. It is described pretty well here:

    http://books.google.se/books?id=ZTTlAwAAQBAJ&lpg=SA2-PA77&ots=_csIZVpjyY&dq=using%20fuel%20as%20cooling%20radar&hl=sv&pg=SA2-PA77#v=onepage&q&f=false

    Oh, did I just prove another of the “only in F35™”-features as being decades old and not unique at all? 😉

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2231611
    Tu22m
    Participant

    Well said.
    A truth that so often sails straight over the head of the younger internet warriors.
    Reality is not a video game.

    The best enemy is stationary and blind. If only that would be the reality then the “next gen” warfare would be happening today…

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2232408
    Tu22m
    Participant

    Actually I remembered the F-35 will have blue force tracking and it also beams it’s sensor data to the guys on the ground. The next logical step (and I find people always invent these ideas before me) is for the guys on the ground to designate targets directly from the f-35’s own sensor footage. SDB here, 2000lber here, press the fire button. Got more vehicle targets than the f-35 overhead has bombs? just assign them to the other f-35 50miles out carrying 24SDB’s, 24 targets destroyed simultaneously. No need for laser designation with its trimode seeker.

    So many things could have been done but in the real world things get more complicated than on the drawing boards. Despite having missiles that can hit a target from 100 miles away in the gulf war a vast majority of the air kills where WVR.

    When I was in the army we trained to use lasers, coordinates and IR-light sticks. Unfortunately IR sticks arent that visible, coordinates dont always translate correctly to the artillery/air support and only works on stationary targets, and lasers… well, they only work if there arent many clouds and if the enemy doesnt have laser warning systems/optics that can see the laser. So in the end we actually never used laser designation because the enemy was expected to be able to spot us, we never used IR lights except for marking landing spots for helicopters in the dark and in engagements we used tracers, smoke and flares to mark current enemy positions.

    We see a similar thing in the videos. The A-10 can drop laser guided bombs using targeting information from ground troops, it can drop bombs on coordinates and so on… but they used smoke and directions instead. Because it works. The soldier doesnt have to stay exposed while directing the laser at the target, not locking the bombs to specific coordinates gives them freedom to easily renew the targeting information.

    That is the difference between reality and theory. In reality the simple stuff survives and the complex stuff gets complicated when one little element in the support chain doesnt work.

    Now lets assume that the enemy has semi decent EW-capabilities and the ground troops are emitting their location etc. A simple intercept (without needing to break the crypto, triangulation marks the spot) would give away all ground units positions. And your idea of blue force tracking fails completely.

    All those new features will be used at some point, but most of the time we will see simple solutions leading the way. Even when fighting a poorly equipped enemy like the talibans.

    in reply to: F-35 News, Multimedia & Discussion thread (3) #2232857
    Tu22m
    Participant

    Yup, the A-10 is pretty much an obsolete aircraft in its original role of tank-busting. F-35 should make an excellant CAS plane.

    In this day and age, the F-35 is probably a better tank-buster than the A-10?

    Not really.

    The A-10 is superior for CAS and COIN simply because of its ability to take damage and requiring little maintenance. For sustained operations in areas where air superiority is won the A-10 is and will be a superb choice even in the future.

    In all other areas, like airspaces where the enemy is expected to contest the airspace, the A-10 is among the worst platforms second to helicopters.

    For instance, when leading CAS/COIN aircraft it is pretty common to mark areas with smoke. Sometimes there are two different colors on the smoke markers. This means the pilots have to get down to visual range so they can orient themselves before engaging the enemy. An IR-system doesnt see the colors so even the F35 would have to get close. Yes, there are laser designators, yes, GPS has been around… but to this day CAS/COIN are usually lead in by radio and visual ques. (In Desert Storm the cars where marked with white Vs that where hard to spot from altitude)

    At 30 s we see a danger close being lead in by red smoke (danger close, west of the red smoke). In a scenario where the target is moving (like tanks are) and the targets have laser warning, the aircraft performing CAS has to be close enough to identify the individual tanks. The F35 will be able to perform this, but I would personally prefer it higher up performing DEAD and counter air and leaving this type of engagement to an aircraft that can survive being hit by the enemy.

    in reply to: best looking stealth fighter #2234268
    Tu22m
    Participant

    Do you mean USMC instead of USN perhaps? The US Navy would probably appreciate having much longer legs, especially for potential deployments against countries with advanced long range anti-ship missiles.

    Yes, you can add usmc as well. Royal Navy is the UK, and the F35 would fit the Queen Elisabeth carrier well

    in reply to: best looking stealth fighter #2234956
    Tu22m
    Participant

    It will be interesting to see what “expected to cost” and what “what it really costs” turn out to be. The Russians do a good job of manufacturing/selling pretty cheap but from everything I’ve read about the export Flankers they are every bit as costly to maintain and operate as you’d expect from a fighter that size.

    Since the F35 became the benchmark for the comparison the only relevant cost is the flyaway price and the promises of the seller.

    In reality weight is pretty closely coupled with costs making Flankers cheap to acquire but expensive as fvck to operate. And since we know that operational costs tend to be the Lions share of the TCO you are absolutely right on the money.

    in reply to: best looking stealth fighter #2235312
    Tu22m
    Participant

    Really? You might want to tell all the government and military leaders that it will be useless because they seem to disagree with you.

    Once again, “if it could be done cheaper, they would”.

    And they are, but just as it did with 4th gen fighters it takes time. Remind me what the Pak FA is expected to cost.

Viewing 15 posts - 151 through 165 (of 1,142 total)