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Subject: Aegis range!
jhaley    6/20/2005 1:47:58 PM
Does anyone know the current rang of the Aegis system. At what range can the system shoot down ICBM's in their "boost" phase. What is the range of the modified system (the anti ICBM system that was recently tested) and what was its capability?.......
 
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gf0012-aust    RE:Aegis range!   6/20/2005 8:39:14 PM
nobody is going to discuss that on an open forum ;)
 
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jhaley    RE:Aegis range!   6/20/2005 10:43:16 PM
We are talking about open source reports, I had a previous link (no longer working), I cannot remember the figures, but they where impressive.....
 
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   RE:Aegis range!   6/21/2005 7:37:49 AM
SM-3 has a range greater than 300km. So one can assume AEGIS have an effective track-to-kill range greater than 300km. You're not gonna get much more accurate than that.
 
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jhaley    RE:Aegis range!   6/21/2005 10:07:30 AM
So Aegis could cover 90 plus % of North Koreas airspace?
 
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gf0012-aust    RE:Aegis range! - jhaley   6/21/2005 10:34:56 AM
"So Aegis could cover 90 plus % of North Koreas airspace?" and a team of SSGN's could cover the other "bits"
 
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   RE:Aegis range!   6/21/2005 10:57:19 AM
AEGIS isn't designed to look over the horizon, however, so it might be disingenuous to say it could cover "90%+" of North Korea's airspace. Terrain may interfere.
 
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jhaley    RE:Aegis range!   6/21/2005 4:21:42 PM
In its currant design Aegis can shoot down a ICBM in boost phase that launches within its range! The newer Aegis system being developed jointly between the US and Japan will have a increased range and be able to knock any ICBM that it lights up!.....Why the questions.....North Korea has now agreed to destroy it balistic missle capability, "if" certain conditions are met....Someone see the hand writting on the wall....I think at its widest NK is 200 miles....Wouldn't take very many Aegis equiped destroyers to cover the majority of the country! "just a few thoughts"
 
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EW3    RE:Aegis range!    6/21/2005 4:44:15 PM
Don't confuse Aegis with the SPY-1. Aegis can cover a lot of area and use many sources for input including aircraft and spacecraft as well as ships and subs. So while the SPY-1 may have terrain issues if we have an AWACS in the air feeding AEGIS (which is simply a computer program) yes it can see most likely all of NK plus a lot of other things.
 
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jhaley    RE:Aegis range!    6/21/2005 5:00:37 PM
I was considering control of the sky...A ICBM a couple of thousand feet up (boost phase) Aegis would be able to track and destroy...SPY 1 would be watching it from lift off, giving Aegis controlers more time to lock on; at the same time a cruise missle would be streaking to the launch site!....
 
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   RE:Aegis range!    6/22/2005 6:04:37 AM
A boost-phase intercept is the toughest to accomplish, because it is the shortest phase of overall ICBM flight, while simultaneously being the initial phase (meaning you have approximately 3 minutes to detect the BM launch, aquire the target with a system like AEGIS, and put your projectile on the target). Thats a pretty tiny envelope. This is why SM-3 is intended primarily for a terminal-phase intercept, like the land-based EKV. Terminal phase is predictable (we can predict a BMs flight path with relative accuracy post-boost, since manuevering in flight is difficult to the point of impossible due to atmospheric stresses), and lasts a relatively long time (5-8 minutes). Unfortunately its also the hardest to achieve, because the missile has at this point achieved peak velocity (8000+ miles per hour). Now, could SM-3 be used as a boost-phase interceptor? Sure. Is it likely? No. As for remembering not to confuse AEGIS and SPY-1, you are partially correct. AEGIS is not just a computer progam, its a complete track-to-kill system. It can be fed target locational data from any manner of 3rd party sensors, but in order to put its own ordnance on target it must have a solid lock from the onboard SPY-1 radar.
 
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jhaley    RE:Aegis range!    6/22/2005 10:47:29 AM
I think you are wrong on the boost phase intercept, but I will have to defere the argument to others with better Knowledge than myself on the Aegis system!
 
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DarthAmerica    RE:Aegis range!    6/24/2005 11:01:20 AM
Actually boost phase is the easiest phase to take out a BM. The huge IR signature, relatively low speed of the BM, highly explosive fuel is still in the rocket engines, BMs cant really manuver in the boost phase as their structural integrity is very weak, if you hit the BM the payload falls back on enemy territory ect. The only problem is having a weapon with the range and speed to reach the missile during this phase. For a small coastal nation like NK this is not a problem. But a nation with a deep interior like Russia or China would pose more of a challenge. Terminal phase gives plenty of time for the missile to employ decoys and other counter measures not to mention the hypersonic speed of the RV. And if you hit the RV on the way in, the wreckage will still land in your area. If its a nuke this could be radiological or biological and there is even a chance of the damaged warhead still functioning when it hits the ground. Especially in the case of a conventional warhead. Just look at the damaged caused by SCUDs shot down over friendly territory.
 
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EW3    RE:Aegis range!    6/24/2005 9:04:06 PM
but in order to put its own ordnance on target it must have a solid lock from the onboard SPY-1 radar Actually it's common for an Aegis ships to launch a missile and another source will illuminate the target. In fact to use an ESSM against a skimmer at max range (for the missile) the SPY-1 probably won't even see the target. That is particularly true for the SM-6.
 
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VelocityVector    RE:Aegis range!    6/26/2005 1:41:12 AM
"...but in order to put its own ordnance on target it must have a solid lock from the onboard SPY-1 radar..." Uh, no, SM-2 and progeny can be cued in spatial then handed-off (command guidance). Launch platform need not illuminate - Google this yourself and get back with us. And the software _is_ the 'system' - SPY can be a part of it but not necessarily so anymore. Miss GIXXX- & don't get here often - have fun! v^2
 
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TDHM    RE:Aegis range!    6/26/2005 4:42:17 AM
Actually, the USN currently does not have the ability to hand off missiles, despite what internet sources there are saying different. There have been tests invovling a hand-off of a SM-2 to a patriot battery for terminal illumination, but this cpability is only being pursued at a slow rate. In this incarnation, CEC instead allows the Ship to compute and guide a Missile (or missiles) using off board tracks, then when the targets do appear over the Hoizon, the ship can begin Terminal Illumination.
 
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