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mabie

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  • in reply to: US DOD highlights sustainable defense budget #2324151
    mabie
    Participant

    AN interesting article on which influential Washington Think-Tanks enjoy credibility with Sec. Gates.

    http://defensetech.org/2010/05/04/gates-channels-csbas-big-brains-warning-navy-ships-risk-becoming-wasting-assets/

    Gates Channels CSBA’s Big Brains Warning Navy Ships Risk Becoming Wasting Assets

    Ask Washington’s defense cognoscenti to name the most influential think tank in town and I wager most would say the Center for New American Security (CNAS). While that may be true in terms of shaping the counterinsurgency strategy being applied in the current wars, when it comes to leaving a lasting mark on the future size and shape of the military, Defense Secretary Robert Gates made clear in his speech yesterday at the Navy League’s annual conference that the Center for Strategic and Budgetary Assessments (CSBA) is the real brain trust.

    Hop on over to the CSBA website and there are a number of reports and papers dealing with the direction and priorities that the US should pursue on topics such as UAVs, Long-Range Strike Capability, etc. Among four New Bomber options, its noteworthy that CSBA had recommended the model with both manned and unmanned capability, just like what the SECDEF seems to endorse. If indeed Gates and CSBA see eye-to-eye on this, we can look forward to a new bomber perhaps 80% the size of a B-2, with possibly a 20,000-lb bombload, 4000-5000 mile range, etc. Again, the CSBA report even lists existing technologies from the F-35, B-2, F-15E to help bring the new plane in on time and on budget.. something Gates also was very explicit about. CSBA projected that the new bomber could be built for $440M each in a total buy of 100 aircraft. I’m sure that got Gates’ attention.:D

    in reply to: New F-22 thread #2327620
    mabie
    Participant

    Unfortunately that leaves the A and C versions saddled with design compromises that were made in the name of commonality with the B, all for nothing.

    I’ve heard this brought up a number of times on various forums. WOuld it really have affected the design of the A and C if there was no STOVL requirement to begin with? Given that the design called for a multi-role aircraft, I think we would still wind up with As and Cs looking very similar to what we have today. I don’t see it looking like a mini Raptor, for example.

    Now the X-32 might be a different matter.. Boeing could obviously come up with something that actually looked like a serious jet.

    in reply to: AEGIS/SM-3 vs. DF-20 #1799114
    mabie
    Participant

    I don’t see the USN being disuaded from going about doing business as usual, specially since the DF-21 has yet to show it can live up to the hype in realistic tests. Not to mean that they aren’t taking steps to ensure a capability to counter a AsBM. Its the prudent thing to do.

    in reply to: AEGIS/SM-3 vs. DF-20 #1799191
    mabie
    Participant

    The question though, is how capable is China of targeting a CBG? Do they have the satellite coverage(or other systems in the event that their satellites become unserviceable)? What’s the maneuvering capability of the warhead? If it uses an IIR seeker, a DIRCM system could be used in conjunction with missile defenses. Obviously it creates greater challenges for the CBG, but I don’t think that it renders carriers ineffective/obsolete just yet.

    Right WW, so many questions and possibilities, so little hard info.

    There has been mention of a Chinese OTH radar capability that can locate a CBG up to 3000Km distant with enough precision to generate targeting data.

    DIRCM is a possibility. Who knows, even a railgun anti-missle capability might be in the cards down the road along with lasers. For all we know, SM-3 might be very capable of handling the threat in the eyes of the USN but they’re keeping this info close to the vest for the moment. Its like a chess game but with some of the pieces hidden.

    http://www.chinasignpost.com/wp-content/uploads/2010/12/Exhibit-2_ASBM-flight-trajectory-diagram-300x143.jpg

    Looking at the surmised DF-21 flight profile above, it would seem that it is following a ballistic trajectory up to the mid-segment burn. After said burn, I’m guessing it returns to a ballistic trajectory until its terminal guidance mode kicks in and it starts final maneuvering to target. I’m guessing that it would be at its most vulnerable to interception by SM-3 for the first ballistic phase outside the atmosphere and via SM-2 during the second ballistic phase which would be at a lower altitude. Just my guess though..

    in reply to: AEGIS/SM-3 vs. DF-20 #1799194
    mabie
    Participant

    The US Pershing(L) and its illegitimate Chinese offspring, the DF-15 (M) and the alleged DF-21(R) AsBM.

    http://www.chinasignpost.com/wp-content/uploads/2010/12/ASBM_IOC_China-SignPost_EXHIBIT-5_ASBMS-IN-THE-FAMILY-300x225.jpg

    Those AEGIS radars are pretty powerful. I wonder if the carrier’s escorts could blind or in some way cripple the incoming MaRV. Or maybe they replace the hit-to-kill payload on the Sm-3 with a blast-fragmentation warhead if this will increase the probability of a hit.

    OTOH, you would expect the Chinese to harden their warhead against HPM attack. And there could be IR or some sort of optical sensor to complicate things further for the defense.

    in reply to: BVR : RF missiles vs ECM #1799229
    mabie
    Participant

    The link I posted above describes some technologies intended to provide all-aspect stealth. In my mind, it helps explain the difficulty adversary aircraft have had in dealing with the F-22 it in both BVR and WVR regimes. RF stealth explains the bvR superiority but with all the hundreds if not thousands of WVR exercises conducted to-date vs. legacy jets flown by eagle-eyed pilots and employing JHMCS and the latest model AIM-9, one should expect more victories for the Eagles/Vipers/Hornets/SuperHornets.

    I can only speculate but I think there’s a lot more that we need to know about the Raptor’s abilities to counter visual detection. By many accounts, the bird is very hard to acquire visually, even when pilot are told in what direction to look. Often, the F-22 is almost right on top of them before they see it. Funny what you can do with lighted panels.

    As for IR, the only counters I can see are the rectangular exhausts, the tails w/c block the nozzles from certain angles and SC w/c reduces the need for AB. But these wouldn’t seem to be enough to counter JHMCS/AIM-9X IMO. Perhaps the flickering skins tech were adopted and are really that good at distorting the aircrafts shape to IR sensors. Maybe his has something to do with the famous quote by the Aussie F-15 pilot that he couldn’t lock onto the Raptor when it was clearly visible thru his canopy.

    Its a guessing game because those who know won’t tell.

    in reply to: Chinese J-XX/14/20 p.2 #2334235
    mabie
    Participant

    Dear lord he makes immense amounts of assumptions on a very uncertain topic.

    Credibility is everything. Does Kopp actually have any consultancy contracts with any government, private think tank, aviation company? If so, then that would indicate that what he preaches may actually be worth something.;)

    in reply to: "Super Hornet better than Harrier, Tornado and Typhoon" #2334893
    mabie
    Participant

    Surprise is an advantage. SAMs may not be the only threat. Best have 2 stealthy jets carrying 4 missiles internally.

    in reply to: BVR : RF missiles vs ECM #1799321
    mabie
    Participant

    Here’s a nice read from Popular Science circa 1997 which discusses some techniques for achieving stealth – RF, Optical, IR.

    http://jmrc.tripod.com/fa/stealth/stealth1.htm

    in reply to: Chinese J-XX/14/20 p.2 #2336176
    mabie
    Participant

    Some Aussies are worried. http://www.ausairpower.net/APA-NOTAM-311210-1.html

    Wow! All it takes is a few photos over the internet for this kind of a reaction. I can hardly wait for Kopp’s analysis of the J-20’s RCS once hi-res images surface.:eek:

    in reply to: Technical versus Cheap? #2336440
    mabie
    Participant

    It depends on the opposition. Against alow-tech foe, a Cessna might get the job done. Against a modern IADS, the USAF says it would require 3 X the number of legacy F-15s/F-16s to do the job that a correspondingly lesser number of F-22s/F-35s could do. At greater risk to legacy pilots and planes. Funny to call Vipers and eagles “cheaper and less technical platforms.”

    in reply to: China's upcoming 5th G fighter–J-20 prototype is ready #2337245
    mabie
    Participant

    A ? Though question persist & will do so for time to come, i think right NOW most would agree that there is SOME/MORE substance to china’s 5G fighter project than-lets say-before the release of these pics. But my question is not about that substance. Rather what is the chinese motivation? The release of these pics & their pace is mind boggling-surely they could have kept it under wraps-when compared with other defence projects. So what’s different this time?

    Any theories?:-)

    I think it has to do with prestige,both for foreign and domestic audiences. The holy grail of military aviation is advanced gen5 fighters, aniche dominated by the US and more recently challenged by the Russians. The actual capabilities of the platforms aren’t a primary concern at this point IMO. The US has such a big headstart but at least you now have a stake in the game and are no longer just kibbitzing from the sidelines. Given enough time and money, the PAK-FA and J-20 may turn out to be capable platforms. Perception is important.

    in reply to: What Makes Euro-canards better than Russian fighters? #2346418
    mabie
    Participant

    until you add AESA!:D

    and netta this discussion is spilling over from the F35 topic.

    Some people there refuse to countenance the idea that the F35 is not an air dominance fighter (its not).

    Non F35 obsessed contributors were merely pointing out that on a one to one basis the Typhoon would have the upper hand over the as yet unproven F35.

    nobody mention the SU35

    The F-35 was never intended to be an air dominance fighter, a role filled by the f-22. But the ability to excel in A2A combat is one of the design considerations. I think its far from certain that the Typhoon would have the upper hand vs a F-35; it could very likely be the opposite case given the F-35’s advantage in stealth and sensors. And by no means is it a dog in terms of performance. Bottom line though is both sides can speculate all they want but I doubt neither will be able to convince the other.

    in reply to: Flying Tail Question? #2347082
    mabie
    Participant

    Thanks everyone for the info.. it appears to be one of those inventions that was developed independently.

    in reply to: 5th generation tactics/thinking #2349194
    mabie
    Participant

    Well, they are known to have tested models of (and presumably computationally simulated) almost every piece of Western hardware, much in the same way as TsAGI windtunnel-tested an F-35 model. That is obviously not the same as having access to the real deal, but combined with espionage efforts I would expect them to have a fairly good picture.

    you mean, something similar to what Kopp did, determining the RCS of the f-35 based on photographs?:diablo:

Viewing 15 posts - 31 through 45 (of 529 total)