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wrightwing

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  • in reply to: Supercruising #2468743
    wrightwing
    Participant

    So what ? Can’t you read the question ? Let me refresh your memory :
    Can you name another A/C that can do more?
    If I’m not mistaken, A/C is not a synonym for fighter, does it ?
    So stop whinning. An aircraft with a comparable size and weight (hence same class) as the F-22 was able to go further and faster (500+ nm @ M1.8+ demonstrated on september, 19th 1960).

    Can you tell me what the exact range and max supercruise speed of the F-22 Raptor are? It’d be helpful if you could, if you’re trying to compare it with another aircraft’s performance. If the AW&ST article is correct, then the F-22 can supercruise at Mach 1.5 for 41 minutes, which would fall into the USAF’s reasoning that it(the Raptor) isn’t just a little bit better than legacy fighters. Another thing to consider is that if the 41 minute figure is correct, the speed may actually be higher as the Raptor has demonstrated M1.82 supercruising. All this is speculation of course, but….food for thought.

    in reply to: PAAMS/ASTER Renamed "Sea Viper" #1821383
    wrightwing
    Participant

    Now if they’d just rename “ASRAAM” 😀

    Well if you’re on the receiving end, it’s not a pleasant thought.:D

    in reply to: Supercruising #2468920
    wrightwing
    Participant

    Because it’s not in the same class. :rolleyes:

    Maybe, but the question didn’t ask for a fighter, did it ?
    It’s always amusing to see how questions are twisted toward the expected answer, especially when you don’t get it…

    If you’re not comparing fighters, then how useful is it to compare at all though? That would be like saying well a B-52H has a far superior range to a Mig-29A. While true, it doesn’t really tell you anything.

    in reply to: The F16 C/D block 52+/block 60 vs F/A 18 E/F Super Hornet #2468946
    wrightwing
    Participant

    Then list the difference in thrust………;)

    Looks to me like the plane gained 6,000lbs in weight, but nearly 10,000lbs in thrust. hmmm, improved T/W ratio methinks.

    in reply to: The F16 C/D block 52+/block 60 vs F/A 18 E/F Super Hornet #2475031
    wrightwing
    Participant

    The problem with the F-18e/f in a strike role imho:
    1) V.heavy + huge engines = gas guzzling
    2) Draggy airframe + huge engines = lower range
    3) I am not sure about its ability to do the fast and low thing ala jags/mig-27s.
    4) No long range fire and forget A2S missile ala Scalp/AASM.

    otherwise a decent bird imho.

    USS.

    Well the JSOW-ER and JASSM/JASSM-ER have very good ranges, and are stealthy as well.

    in reply to: Supercruising #2475038
    wrightwing
    Participant

    Don’t you see, combat radius of the F-22 under supersonic condition would be much shorter than we can conceived.:D

    That’s not what the USAF thinks, or LM for that matter.:cool:

    in reply to: Supercruising #2475057
    wrightwing
    Participant

    You do distract from the unpleasant reality, do you. Every US-fighters has to fullfill specifications in general. Empty equipped is one of that and has nothing to do with secrecy. The LM are proud to anounce, when such specifications are fullfilled or some extra percent achieved. The more the F-35 program has ballooned out of budget for some time already. The weight critical F-35B was “saved” two ways. The internal weapons-capability is reduced an the the thrust of the F135 risen. All that was done, before the LM did learn that some extra weight has to be added again. One prominent example is to correct the insuffienct supply in electricity and to strengthen some critical parts of the propulsion-system f.e. LM does test preproduction examples, when the claims for tthe real thing are still guess-work with a lot of hope into the future.

    My point is that there are sources that have more accurate(up to date) info, than the website might. I’m just leery of stating unequivocally that if an open source site doesn’t have a performance figure/spec, that it necessarily means the aircraft can’t do something.

    in reply to: The F16 C/D block 52+/block 60 vs F/A 18 E/F Super Hornet #2475243
    wrightwing
    Participant

    [QUOTE=swerve;1356806]

    Air show demos are not a good measure of performance. How much fuel was that aircraft carrying? Enough for the show, landing, & a small reserve. It would never be so light in combat.

    This is true, but without knowing the above information, we can merely speculate. FWIW, the F-22 does it’s demo at combat weight.

    in reply to: The F16 C/D block 52+/block 60 vs F/A 18 E/F Super Hornet #2475546
    wrightwing
    Participant

    The whole planform of the F-16 generates lift, assuming pure wing area is very simplistic. However, if its the same dimensions, as with all F-16’s, and the weights go up, you can therefore simply compare the wing loadings.

    I have found this video, and it still seems very agile to me, compare it to a block 50 demo at le Bourget/Farnborough; (again its an airshow demo, but it does give an impression);

    http://uk.youtube.com/watch?v=LwtXI4xfN7k

    That certainly looked pretty agile to me. Very crisp rolls, tight turns, and very good at maintaining high state of energy.

    in reply to: Supercruising #2475549
    wrightwing
    Participant

    Last, I heard only the initial F-35B was overweight and that has since been corrected……….As a matter of fact some of the weight saving of the F-35B. Are going to be used on the landbased F-35A and navalbased F-35C…..Further, it also now appears the F135-PW-100 is making at least 43,000 lbs. 😎

    Sorry, things are looking up………..:D

    Oh, I never doubted that they’d be able to trim the weight, or that the F-135 made any less than 43k lb thrust.

    in reply to: Supercruising #2475780
    wrightwing
    Participant

    Wishfull behavior to stay polite.
    All three F-35 variants are still overweight and it will be intresting to learn, how much they will be with real production examples will come of the line. 😉

    So you think 100% accurate and up to date specs for sensitive weapons are regularly posted on open source sites, or maybe ballpark figures might just be the norm?

    in reply to: The F16 C/D block 52+/block 60 vs F/A 18 E/F Super Hornet #2475832
    wrightwing
    Participant

    How much does an F-16 Blk 25 weigh with 6 AAMS vs. a Blk 50 or Blk 60?
    What’s the T/W ratio when in this configuration?

    in reply to: Supercruising #2475856
    wrightwing
    Participant

    Then why does the F-35 manufacturer’s website still keeps using you-called outdated data in 2009 without any revision like the above information you offered ???

    Because no precise numbers are going to be put on an open source site anyway, so if a spec is +/-, from their perspective it’s not that important.

    in reply to: Do we really need fighter jets anymore? #2476184
    wrightwing
    Participant

    Whose exactly? I was under the impression they’d never had to face either of those systems and that the concern about facing particularly the former was driving their push for acquisition of F-35s.
    @Topic, it depends on what the needs of said military are. If air defence is all you’re looking for then a couple of batteries of modern SAMs will offer you much more potent deterrent to an aerial attack than the aircraft you’d buy for the same price, true. But the vast majority of aerial combat missions are air-to-ground. A SAM can’t do a lot to defend itself if it’s attacked by an opposing army, whereas a good fighter squadron can provide both significant air defence and, if properly equipped, highly potent air support as well. So multi-role fighters are still extremely useful platforms. Point-defence is far better handled by a SAM – even regardless of acquisition costs, you’ll make it up in the maintenance and fuel before long – but SAMs are both range-limited (even the longest-ranged systems such as S-400 degrade over distance because of their total dependence on radar support, which is terrain-limited anyhow) and certainly not as mobile as aircraft even in a best-case scenario such as an S-300VM.
    As I said, it depends entirely on what the military is looking for, but most are looking for a lot more than air defence.

    The Syrians do have the Tor M1 systems, though I haven’t seen any reports of them having S-300s.

    in reply to: Supercruising #2476211
    wrightwing
    Participant

    Here are some “semi-official” figures ( http://www.airforce-magazine.com/MagazineArchive/Documents/2005/January%202005/0105raptor.pdf ): 405 Nmiles, including 100 Nmiles 1.5 dash, or 600 Nmile only subsonic. Aside those, ~20 min are spent over combat zone in supercruise.

    By John A. Tirpak
    Air Force Magazine
    November 2005

    The F/A-22’s ability to cruise supersonically is an essential feature. If you didn’t buy it for stealth, you’d buy it for speed, Lewis said. He noted that F/A-22s at Langley can get to Washington, D.C., in just seven minutes and be able to loiter in the area for 41 minutes before going home. This marks a vast improvement over F-15s, which would take longer to arrive and would have to refuel almost immediately.

    PS: The distance between Washington, D.C. and Langley Airbase is around 130 miles / 209 km.

    According to AW&ST, June 12, 2006:

    For the anti-cruise missile mission, F-22A can cruise 41 minutes with the speed of around 1.5 Mach, while the traditional fighters like F-15 and F-16 can just cruise 7 minutes with that speed.

    Ok- even if we assume AW&ST completely got this wrong, let’s work with that first figure.

    Langley to DC- 130miles in 7 minutes, which means A/B and Mach 2+
    41 minutes loiter ~M.85- M.95 or between 376-420 miles
    DC to Langley- 130miles -no speed given, but it’s generally given that the F-22 can do at least 2 legs at 100+nm in supercruise.

    On the low end of the scale that works out to ~636 miles.
    On the high end of the scale that works out to ~680 miles.
    You also have to figure in enough fuel for probably 20-30 minute reserve.

    Given that on the first leg A/B and Mach 2+ speeds were used, is going to lower the maximum range. It’s certainly not inconceivable that if the F-22 didn’t use A/B, 800 miles shouldn’t be unreasonable(and according to your article ~810-1200 miles). If however the AW&ST article is accurate, then the range will be much further(Mach 1.5 for 41 minutes + subsonic portion of flight).

    In any event, 463km is a ridiculously low number.

Viewing 15 posts - 2,791 through 2,805 (of 3,666 total)