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#21
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/14, 5:20 PM, Mr. Luddite wrote:
On 4/19/2014 5:11 PM, F*O*A*D wrote: On 4/19/14, 4:52 PM, F*O*A*D wrote: On 4/19/14, 4:45 PM, Mr. Luddite wrote: On 4/19/2014 4:32 PM, F*O*A*D wrote: On 4/19/14, 3:47 PM, Mr. Luddite wrote: On 4/19/2014 2:25 PM, F*O*A*D wrote: A $3 billion ship...with IPS drives. It ought to be good for a few laughs in the future. "The ship took about three years to complete and was perhaps the most advanced warship of its time." Oh, that's not the USS Zumwalt. It's the USS Princeton, commissioned in 1843 and the first US Naval ship to be driven by a propeller instead of sails or paddlewheels. And they call me Mr. Luddite. The Zumwalt looks as if it would roll over in heavy beam seas, but I'm sure the design was tank-tested for that. I read that the "tumblehome" design is supposed to minimize it's radar footprint, but really, a ship two thirds the length of a New Jersey class WWII battleship is going to be pretty easy to spot at sea, from the air, or from a satellite. You forget. Oceans are big. A 600+' ship is a speck from the air or space unless you know exactly where to look for it. It is said that the radar signature of the Zumwalt is about that of a small sailboat. Hi-res satellite photos aren't going to mistake a 600' target for a small sailboat. Oh, and let's not forget the heat bloom from the ship's power plants... 2 Rolls-Royce Marine Trent-30 gas turbines plus 2 Rolls-Royce RR4500 gas turbine generator sets. Easily picked up by satellite or even airborne subhunters. And how about the wakes and ocean turbulence? This is a ship so large it cannot really hide. And even if it were sent to assist in a military mission against an enemy without high tech detection devices, the odds are that enemy has friendly nations with satellites that will supply it with the necessary data. "The new destroyer was designed to operate both in the open ocean and in shallow, offshore waters. And it incorporates several stealth features, including: a wave-piercing hull that leaves almost no wake; an exhaust suppressor to reduce the vessel’s infrared (heat) signature; and an exterior that slopes inward at a steep angle, creating a radar signature said to be no larger than a fishing boat’s." http://www.smithsonianmag.com/science-nature/introducing-the-uss-zumwalt-the-stealth-destroyer-38028566/?no-ist Leaving almost no wake and reducing the heat signature to make it "stealthy" implies certain knowledge of everyone else's technology, and that there is no further development in same. Whatever the Navy does, it doesn't have a cloaking device and the ship will be visible. |
#22
posted to rec.boats
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Warsaw is lovely this time of year...
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#23
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/14, 5:20 PM, Mr. Luddite wrote:
On 4/19/2014 5:11 PM, F*O*A*D wrote: On 4/19/14, 4:52 PM, F*O*A*D wrote: On 4/19/14, 4:45 PM, Mr. Luddite wrote: On 4/19/2014 4:32 PM, F*O*A*D wrote: On 4/19/14, 3:47 PM, Mr. Luddite wrote: On 4/19/2014 2:25 PM, F*O*A*D wrote: A $3 billion ship...with IPS drives. It ought to be good for a few laughs in the future. "The ship took about three years to complete and was perhaps the most advanced warship of its time." Oh, that's not the USS Zumwalt. It's the USS Princeton, commissioned in 1843 and the first US Naval ship to be driven by a propeller instead of sails or paddlewheels. And they call me Mr. Luddite. The Zumwalt looks as if it would roll over in heavy beam seas, but I'm sure the design was tank-tested for that. I read that the "tumblehome" design is supposed to minimize it's radar footprint, but really, a ship two thirds the length of a New Jersey class WWII battleship is going to be pretty easy to spot at sea, from the air, or from a satellite. You forget. Oceans are big. A 600+' ship is a speck from the air or space unless you know exactly where to look for it. It is said that the radar signature of the Zumwalt is about that of a small sailboat. Hi-res satellite photos aren't going to mistake a 600' target for a small sailboat. Oh, and let's not forget the heat bloom from the ship's power plants... 2 Rolls-Royce Marine Trent-30 gas turbines plus 2 Rolls-Royce RR4500 gas turbine generator sets. Easily picked up by satellite or even airborne subhunters. And how about the wakes and ocean turbulence? This is a ship so large it cannot really hide. And even if it were sent to assist in a military mission against an enemy without high tech detection devices, the odds are that enemy has friendly nations with satellites that will supply it with the necessary data. "The new destroyer was designed to operate both in the open ocean and in shallow, offshore waters. And it incorporates several stealth features, including: a wave-piercing hull that leaves almost no wake; an exhaust suppressor to reduce the vessel’s infrared (heat) signature; and an exterior that slopes inward at a steep angle, creating a radar signature said to be no larger than a fishing boat’s." http://www.smithsonianmag.com/science-nature/introducing-the-uss-zumwalt-the-stealth-destroyer-38028566/?no-ist Even funnier, Smithsonian picked up the PR and printed it, and you believe the PR. |
#24
posted to rec.boats
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Warsaw is lovely this time of year...
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#25
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/2014 4:33 PM, BAR wrote:
In article , says... On Sat, 19 Apr 2014 13:02:05 -0400, F*O*A*D wrote: The new destroyer that was commissioned a couple of weeks ago (USS Zumwalt) at over 600' LOA is the largest destroyer ever built yet is manned with a crew half the size of the dinky little 315' destroyer escorts that I served on. And we needed it because... Our president is committing us to all sorts of foreign adventures. I want to know about the arms deals that were in the works in Libya which got an US Ambasador killed. We will never get to that, it was a Billary thing and anybody who gets close will shoot himself in the back of the head and move themselves from a hotel to a park... |
#26
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/14, 6:11 PM, KC wrote:
On 4/19/2014 4:33 PM, BAR wrote: In article , says... On Sat, 19 Apr 2014 13:02:05 -0400, F*O*A*D wrote: The new destroyer that was commissioned a couple of weeks ago (USS Zumwalt) at over 600' LOA is the largest destroyer ever built yet is manned with a crew half the size of the dinky little 315' destroyer escorts that I served on. And we needed it because... Our president is committing us to all sorts of foreign adventures. I want to know about the arms deals that were in the works in Libya which got an US Ambasador killed. We will never get to that, it was a Billary thing and anybody who gets close will shoot himself in the back of the head and move themselves from a hotel to a park... Isn't America great? Even morons like Bertie and Scotty can participate in discussion threads. |
#27
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/2014 6:11 PM, KC wrote:
On 4/19/2014 4:33 PM, BAR wrote: In article , says... On Sat, 19 Apr 2014 13:02:05 -0400, F*O*A*D wrote: The new destroyer that was commissioned a couple of weeks ago (USS Zumwalt) at over 600' LOA is the largest destroyer ever built yet is manned with a crew half the size of the dinky little 315' destroyer escorts that I served on. And we needed it because... Our president is committing us to all sorts of foreign adventures. I want to know about the arms deals that were in the works in Libya which got an US Ambasador killed. We will never get to that, it was a Billary thing and anybody who gets close will shoot himself in the back of the head and move themselves from a hotel to a park... ....or fall on a knife ....six times.... |
#28
posted to rec.boats
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Warsaw is lovely this time of year...
On 4/19/14, 6:25 PM, KC wrote:
On 4/19/2014 6:11 PM, KC wrote: On 4/19/2014 4:33 PM, BAR wrote: In article , says... On Sat, 19 Apr 2014 13:02:05 -0400, F*O*A*D wrote: The new destroyer that was commissioned a couple of weeks ago (USS Zumwalt) at over 600' LOA is the largest destroyer ever built yet is manned with a crew half the size of the dinky little 315' destroyer escorts that I served on. And we needed it because... Our president is committing us to all sorts of foreign adventures. I want to know about the arms deals that were in the works in Libya which got an US Ambasador killed. We will never get to that, it was a Billary thing and anybody who gets close will shoot himself in the back of the head and move themselves from a hotel to a park... ...or fall on a knife ...six times.... You should try that and let us know how it works out for you. |
#29
posted to rec.boats
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Warsaw is lovely this time of year...
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#30
posted to rec.boats
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Warsaw is lovely this time of year...
On Sat, 19 Apr 2014 17:11:11 -0400, F*O*A*D wrote:
And even if it were sent to assist in a military mission against an enemy without high tech detection devices, the odds are that enemy has friendly nations with satellites that will supply it with the necessary data. === Satellite imagery is not in "real time" like radar however. The image has to be downlinked, processed, analyzed and distributed - typically over half an hour at best. By then the ship is somewhere else. |
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