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Scorpion82

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Viewing 15 posts - 1,771 through 1,785 (of 4,105 total)
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  • in reply to: PAK-FA Saga Episode 14 #2415103
    Scorpion82
    Participant

    Most combat aircraft since the 1960s could exceed mach 1 without afterburner EE Lightning, F-104 etc – when they are clean! Are people seriously saying that the F-35 can’t do at least M 1.2 in dry thrust, bearing in mind the massive power it has behind it.
    Can A Su-35 supercruise with a full complement of armnament hanging from it as opposed to just reaching M1.2 when its clean…

    It’s a question of aerodynamics and engine thrust. Aircraft won’t supercruise at SL, but at higher altitudes and the thrust generation there and in relation to Mach number is what matters, not the static thrust. And is there any source confirming supercruise for the Su-35 with “full load” and with any figures at all?

    in reply to: PAK-FA Saga Episode 14 #2415433
    Scorpion82
    Participant

    @Trident,
    he has done so in the past among others. And to be honest I’m lucky he’s gone. Though he appears to have some kind of reincarnation.

    in reply to: F-35 news thread II #2415517
    Scorpion82
    Participant

    “Just” 😉 Credit where it’s due, that is only negligibly less than the old figure and still a very impressive fuel fraction. Fuel capacity is the least of the F-35’s problems I’d say.

    The emphasis was on the empty weight which is still stated with 29300 lb. The fuel load number indicates that the data were updated however. So no suggestion of an empty weight of 26XXX lb as touted by some here since years, because a single document says so, while all newer up to date official sources contradict that. All kinds of reasons has been found to explain that, such as the website wasn’t updated and what not.

    in reply to: UK to ditch F35B for Super Hornet? #2415536
    Scorpion82
    Participant

    Someone in the know? Gf is a smart guy with good reasoning, understanding and knowledge in general, being the smartest guy of that page isn’t difficult, given the bunch of dead brainers around there. But how much inside can he have with the QE as an Aussie defence industrial guy?

    in reply to: PAK-FA Saga Episode 14 #2415594
    Scorpion82
    Participant

    @Marcellog,
    and what does this article prove? Does it state the F-35 achieved M 1.2 on dry thrust? No it didn’t! So what’s your point?

    @ww,
    I’m certain if the F-35 goes supersonic on dry thrust LM will happily shout it out and speak about supercruise. 😉

    in reply to: PAK-FA Saga Episode 14 #2415673
    Scorpion82
    Participant

    Come on- if you can’t see that’s it’s disengenuous to say that Russian/European fighters supercruise below M1.5, but then say that the F-35doesn’t supercruise because it doesn’t do it above M1.5, then I don’t know what to tell you. LM/DOD use M1.5 as the cut off. Other manufacturers use M1.

    Well up to date there is no prove that the F-35 goes >M1 on dry thrust at all, that’s certainly the point some people want to make here, as some doubt it will be able to do so.

    in reply to: PAK-FA Saga Episode 14 #2416637
    Scorpion82
    Participant

    Exec,
    you aren’t that dumb, why are you playing that game? An equally sized airframe with much more internal volume to accommodate almost 3 times the fuel, weapon bays and targeting sensors compared to an F-16, an engine >6 t more powerful, yet equal acceleration and you still don’t see that the F-35 MUST be more draggy than a clean Viper by a fair margin? That’s illusionary, not to say ignorant! Is it really that difficult to get that point? In the end what matters is the performance in combat configuration and that’s where the F-35 scores as its drag won’t change! In other words trading clean drag for combat drag.

    in reply to: F-35 news thread II #2416648
    Scorpion82
    Participant

    So LM has finally updated its website about the F-35. And what we can see is
    empty weight still 29300 lb for the A, but internal fuel is now just 18250 lb.

    http://www.lockheedmartin.com/products/f35/index.html

    in reply to: PAK-FA Saga Episode 14 #2416979
    Scorpion82
    Participant

    @Exec,
    according Beesley the F-35 accelerates about as fast as a clean F-16 blk 50. Outaccelerating F-16 chase aircraft which might be older models and hauling around drop tanks is not such a great achievement. Given that the F-35 has about 50% more weight an thrust, while not being much larger than the F-16 one could expect an even better acceleration. That it’s “just as good” indicates that the F-35 is somewhat draggy, because acceleration is first and foremost a function of thrust/drag ratio.
    And for the record the F-16 was first and foremost designed as a fighter to supplant the F-15.

    in reply to: F-35 news thread II #2417464
    Scorpion82
    Participant

    The article was somewhere posted here a while back. The aircraft hasn’t demonstrated it yet (M 1.2 was recently achieved), but that’s the design goal.

    in reply to: F-35 news thread II #2417474
    Scorpion82
    Participant

    mrmalaya,
    did you read the link I provided in my last post? It states:

    The disclosure raises the demonstrated sea-level thrust for the F135 above 50,000 lb.

    The 50° AoA comes from simulations and has not been demonstrated in real flight. It’s trimmed flight anyway not combat manoeuvring.

    The M1.6 weapons release speed has been stated in one article. Basically nothing which I see a reason to doubt it.

    in reply to: Military Aviation News From Around The World – VI #2417570
    Scorpion82
    Participant

    “Der Spiegel”:rolleyes:

    in reply to: UK to ditch F35B for Super Hornet? #2417571
    Scorpion82
    Participant

    @LordJim,
    the RAF originally intended to support an active fleet of 137 Typhoons with 232 aircraft, including attrition reserves etc. As you said there would have been 7 frontline squadrons. The current plan is for 5-6 frontline squadrons with an active fleet of 123 aircraft and a total of 160. Rotating airframes in and out of service to spread flying hours was part of the reserve concept to be able to sustain operations with the required number, for the scheduled period.

    @Hawkeye,
    Greece cancelled the deal with Eurofighter and has launched a new open tender, which hasn’t advanced much since then however.

    in reply to: PAK-FA Saga Episode 14 #2417572
    Scorpion82
    Participant

    @Floyd,
    the control surfaces of an AMRAAM aren’t straight, they are swept. And why in hell does the Su-35 needs a MAWS with 360° azimuth coverage if the radar is allegedly capable to detect it? Why don’t you come up with any reliable source confirming the Irbis ability to detect missiles? The typcial fire control radar works with centimetric waves, which usualy doesn’t offer the resolution to detect missiles of that size. And even if it is capable to detect missiles once again at what range. Suddenly the 90 km figures becomes the all detection range figure against any kind of small targets for you. Sorry but that’s not going to work that way.

    An RWR can only detect a missile that goes active and missiles go active just in the terminal phase for the last few km. At that time the launcher may have long started to run away and there is no chance to engage it anymore. Rocket motors just burn for the duration of seconds, after booster and sustainer are gone the missile flies ballistic and as a long as it is fast enough it’s also manoeuvrable enough. A missile starts to struggle when it is to slow therefore you will try to engage within NEZ.

    The Su-35 has no rearward warning radar, that was claimed in some earlier articles, but the fact that the Su-35 has a brake chute shows us that there can’t be any rearward looking radar and no current source does even suggest its existence. Maybe you just start trying to update your sources and research a bit more analytical.

    And for that matter there is no dedicated RWR display in the Su-35’s cockpit. You 2 MFI-35 MFDs, a coloured attitude indicator to the top right of the front console, an up-front controller bellow the HUD and a smaller MFD to the right side console which is used for weapons programming etc.

    in reply to: PAK-FA Saga Episode 14 #2417832
    Scorpion82
    Participant

    @Floyd,
    you seem to be unaware of the limitations and assume that anything will work perfectly regardless of the conditions. Only a fool or someone with know real understanding of how these things work can come to such a conclusion. An AAM is actually not a CRM it is a much smaller and faster target. Detecting it with radar is difficult up to date, if not impossible. The IRST isn’t of much help either and the quoted range performance is under optimal conditions usually for an afterburning target. The missile’s rocket motor won’t burn long and we have the reference of the MiG-35’s SOAR MAWS which reportedly detects BVR missiles at about 30 km. The IRST in this case will just give you a bearing anyway like the RWR. This isn’t enough to calculate a firing solution and if a missile is underway and you know about it you’ll most likely turn away and try to outrun it at the same time you are not able to counter fire, which would require sufficient target data which may not be given anyway. You magically assume that all missiles will miss and that the Su-35 will ever be able to turn the table and is magically able to win the fight.
    Is it really that difficult to understand that you’ll be disadvantaged as soon as the enemy fires at you while you don’t even see him or have adequate data to do something about it?

Viewing 15 posts - 1,771 through 1,785 (of 4,105 total)