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wd1

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  • in reply to: Canards and stealth. . . #2339411
    wd1
    Participant

    then what do you think of the new J-20?
    not only does it have canards, its at a different angle than the wing (unlike the X-36 or older Lockheed JSF models)

    the J-20’s canards have their leading edges aligned with the wings.

    as for the canards’ trailing edges, these are aligned with the trailing edges of the opposite side wings.

    it’ll be interesting to speculate on the extent of the effectiveness of this measure, compared for eg. to the F-22 planform.

    certainly though, the two ventral fins will increase RCS quite a bit.

    to illustrate, i attach a plan view of the J-20 (courtesy of the J-20 thread)

    http://forum.keypublishing.com/attachment.php?attachmentid=192755&d=1298017411

    in reply to: KC767, KC330….what latest? #2492561
    wd1
    Participant

    Unfortunately for Boeing given a few more years they do have a product in that class the 787.

    Personally I think there was a good argument for a tactical tanker based on the 757 (pity they dropped her), actually that would of been a perfect VC10 replacement for the RAF as well.

    unfortunately for Boeing, the 787 production line is queued right up to 2013 earliest.

    what exactly is the real issue preventing the 787 from being a tanker anyway. is it something to do with the composite airframe?

    in reply to: F-15E/K #2492570
    wd1
    Participant

    i suppose israeli F-15Is should also be able to carry SPICE and Delilah.

    in reply to: KC767, KC330….what latest? #2492592
    wd1
    Participant

    looking wayyy forward, in the long term i hope (and am optimistic of) seeing Boeing sell lots of KC-BWB (you get what i mean) to USAF. for KC(Z) perhaps, ~2020.

    all is not lost – while EADS busy themselves building KC-45As Boeing should sit down and come up with something revolutionary from a clean sheet of paper. i would really love to see an operational BWB design. it’s got lots of potential, if not for the airlines then at least as a tanker/transport.

    in reply to: KC767, KC330….what latest? #2493537
    wd1
    Participant

    Airbus wins!!

    AFP reports that EADS/NG have won.

    Pentagon picks EADS/Northrop for tanker contract: report

    WASHINGTON (AFP) – – The Pentagon has chosen Europe’s EADS, parent of Airbus, and US partner Northrop Grumman for a massive refueling tanker aircraft contract, the Wall Street Journal said Friday.

    The newspaper, citing a person familiar with the situation, said the partnership won a heated contest against US-based aerospace giant Boeing for the contract of some 40 billion dollars.

    The Defense Department was to announce the winner of the US Air Force contract at 2200 GMT.

    Boeing, the second leading US defense contractor after Lockheed Martin, has been considered the heavy favorite to snare the contract to provide 179 twin-engine planes that essentially are flying gas stations, used to refuel in-flight war planes and troop transporters.

    The contract is one of the Pentagon’s largest in recent years and the first order on a tanker market estimated at more than 100 billion dollars in over 30 years.

    The outcome of the competition is being closely watched not just because of the enormous size of the contract. There are domestic and geopolitical implications at issue in the US Air Force’s choice between an all-American contractor or a mainly US team that includes a foreign contractor.

    An EADS victory would give the European firm its first major foothold in the world’s largest defense market.

    Boeing proposed a version of its long-haul cargo plane the 767-200.

    EADS offered a modified version of the Airbus 330. The commercial plane would be militarized by Northrop Grumman and its American partners to prevent the transfer of sensitive technology to a foreign entity.

    http://sg.news.yahoo.com/afp/20080301/tts-us-europe-military-972e412.html

    in reply to: Supercruising(?) F-16s for India #2513692
    wd1
    Participant

    What’s not to believe. With 32,000+ lbs of dry thrust, the F-35 may not supercruise at M1.7+ like F-22, but it will supercruise. LM and DoD are in a pickle because F-22 will be canceled if F-35’s true capabilities become known to Congress. This is the same predicament F-16 and F-15 were in during the 1970s when USAF refused to give F-16 A2A radar modes for Sparrow to protect F-15 production.

    agreed. only a few months ago an LM rep said that F-35 can actually carry six internal AIM-120s. it’s likely that there are more capabilities as yet unmentioned… and when it produces more thrust in dry than the F-16 in full AB, there’s IMO not much stopping it from supercruising.

    (however i did read somewhere about the F-35 not being aerodynamically designed for supercruise, and i’m not sure if the F135 is designed for supercruise either)

    up til the time F-35 supercruise is confirmed however, i believe this reporter’s claim about the Lightning have supercruise is a case of not knowing what he’s talking about.

    in reply to: AH-1Z and UH-1Y #2513704
    wd1
    Participant

    Couple of issues here.

    Network Centric Warfare is an impressive capability, but in order for it to have maximum utility, you actually have to have the network and all associated other platforms in place at the time you need them. The US will often (but not always) have this, but how many others will? Even for the US, NCW tends to profit most in a Cold War type massive battle/large area battle scenario. For attack helos, this is a desirable, but not essential capability. If the network is not in place where you need it, then you are limited to your onboard sensors, and in the case of these two helos, the -1Z’s are better. Again, don’t forget you can get Longbow on the Zulu if you want to pay for it.

    Data transfer form other sources, when available, is a wonderful thing but imposes an additional workload on the crew. That’s one of the rainiest the later F/A-8Fs are using a “decoupled” front and rear cockpit, there’s so much to manage. To support your engaged forces (a big reason for attack helos existence), those troops have to have the necessary equipment to take advantage of it and the training and time to use it. Often, they don’t so you’re back to what the helo itself can bring to the fight. Also, the theater in which attack helos operate is much more fluid and intense than it is for fixed wings operating thousands of feet above, and there often isn’t time to take advantage of the humongous dataflow coming form the network. USMC does have datalink cpability, but not as extensive, and they are fielding systems where the aircrew and ground commander can be looking at the same thing, but again the issue is if your troops are suddenly taking heavy fire from that third building/hill/whatever on the left, you need to fire right now, not wait until the network can process and deliver data to you. That kind of operation is where the fastmovers excel, if there happen to be any around.

    NCW is a fantastic capability, but it’s one part of a whole and its value must be weighted with all the other capabilities in the scenario in which it will be used.

    360 degree radar is fantastic, but it’s what’s in front of you that really counts, because Hellfire does not have (nor does it need) the kind of dramatic off-boresight capability of dogfight missiles, and you can’t turn any helo around fast enough (unless it’s hovering, in which case it’s about to get shot down) to shoot in all directions at once. Hellfire is impressive as heck (it’s the -1Z’s main weapon too), but I doubt anything can shoot 16 of them at the same time at 16 different dispersed and mobile targets effectively. Although the best anti-tank weapon remains another tank, I’d say the -1Z is as good as or better than everyone else in the anti-armor role

    Because the -1Z’s advanced sensors normally see further than the -64’s and are passive, thereby not giving away their presence, I would opine that if one had to go against a SAM site or against the ZSU-23 at low altitude, you’d want something that didn’t tell them you’re coming.

    This and my previous post were not meant to denigrate the Apache or say that those who bought it made a mistake. Rather, it was to point out that the AH-1Z is a heck of an aircraft and explain why USMC didn’t go with the Apache. I didn’t even get into the R&D, higher price and massive logistics costs to introduce a superior new aircraft into the USMC inventory when for much less cost they could field a weapon that builds on what they arguably have because those issues don’t apply to those that aren’t already operating -1Ws.

    As to why the Apache has done better in international competitions, I repeat my points from before:

    1. The publicity machine for the Apache is much better than that for the Cobra

    2. Boeing can actually quote you a firm delivery day, while Bell can’t do that until completion of development.

    3. Until the Zulu enters service, the Apache is seen as the “safer” choice by bureaucrats and politicians.

    and add

    3a Export customers generally aren’t willing to buy something that isn’t already in service by the host country. The F-35 is an exception because there’s not much else with that type of capability that will arrive in time (the discussion of the F-35 would belong in another thread ).

    *nods* good points. thanks.

    in reply to: Super Hornet buy to be reconsidered. #2514336
    wd1
    Participant

    Australia faces hard choice in fighter review

    The review needs to be rigorous and systematic and it should be conducted by an independent analyst with extensive experience in the aerospace industry, says Dr Andrew Davies, ASPI’s operations and capability programme director.

    it is very sad IMO that a government does not even trust its own Air Force on operational requirements and procurement decisions, instead choosing some civvie “independent analysts” who probably at the end of the day care only for their fee.

    how could these civvies possibly know better than the guys on the frontline who actually maintain, fly and fight the planes and bear the real responsibility for national air defense?

    in reply to: AH-1Z and UH-1Y #2514358
    wd1
    Participant

    what about the network-centric warfare and datalink capability for the Zulu? this is something i’m interested in, and there has been very little mention here, in Bell publicity material or elsewhere about how the Zulu fits in NCW.

    one of the main advances of the AH-64D Longbow are its multispectral sensors, and the ability to share the battlefield info these sensors gather while receiving more info from other tactical sources. this helps everyone to obtain a much clearer picture of the battle situation.

    not to mention the Longbow/Hellfire combo where after a 16-second 360-degree radar scan you could ripple-fire 16 missiles to hit 16 tanks. and a very accurate RFI, to go SAM- and Shilka-hunting like no other platform can do.

    clearly these advantages are not needed in present-day conflict, and generate a huge maintenance load, but who’s to say the US Army won’t be going tank-busting in the future.

    (this just a perspective from Singapore, where our newly-purchased Longbows have been touted as integral in the move towards NCW.)

    the Zulu, if lacking datalinks and associated equipment, will be left fighting alone and blind beyond what its FLIR can see. this may be good enough for immediate needs in Iraq, and if its how the USMC with its unique preferences wants to employ AHs then that’s fine. but its no wonder that the Apache has got a much better export record.

    in reply to: Supercruising(?) F-16s for India #2514375
    wd1
    Participant

    The F-16XL could carry four recessed AIM-120s and two wingtip Sidewinders. It also had WAY more internal fuel than the standard F-16. I doubt they’d need to go with a F135 (doubt they’d sell those to India anyway) as F110s and F100s have both broke 36k.

    sferrin: is there a more powerful available F-16 engine than the GE-132?

    in reply to: Supercruising(?) F-16s for India #2514377
    wd1
    Participant

    Do you know what the configuration of the proposed F-16 is?

    that hasn’t been announced.

    but given the size of the contract, might it actually be worthwhile for LM to offer the XL airframe… or at least make some aerodynamic improvements for the proposed F-16IN. beef it up some, to enable it to compete with the likes of Typhoon, Gripen and MiG-35 that are also in the running.

    but if the Block 60 front end – APG-80 and FLIR/IRST is really approved for this sale, it would be by far the best sensor suite among all the contenders and very tempting for the IAF.

    in reply to: MC-130 #2555921
    wd1
    Participant

    thanks dude.

    in reply to: MC-130 #2556099
    wd1
    Participant

    how does a MC-130 exfiltrate troops from the ground? is landing the only way?

    i remember reading about a scheme where as the Herk flies above two hooks mounted on the nose of the Herk snag a helium balloon secured to the trooper and pull him in. the loadmaster and crew grab him into the rear door.

    that must be one hell of a ride!

    wd1
    Participant

    ok thanks everyone!

    i didn’t know about the laser and IIR autotracking ability, and i bet its something nice to have.

    cheers!

    in reply to: LEGO Aircraft Carrier #2051873
    wd1
    Participant

    i used to do Lego BattleMechs, but this is AWESOME!!

Viewing 15 posts - 1 through 15 (of 252 total)