Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-26 Thread Eugene Leitl
On Wed, 25 Jul 2001, Steve Schear wrote: > Or reduce the effectiveness of the detection system by clandestinely > "salting" vessels entering our ports with radio active dust with the > same energy signatures. Sort of a radio active chaff. The point of a clandestine WOMD attack is that there is

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-25 Thread Eugene Leitl
On Tue, 24 Jul 2001, Jim Choate wrote: > The optics used for focusing are NOT mirrors, they are (hopefully) Okay, a have a chemical laser, something which burns tons of fuel (deuterium/fluorine) in a second in a resonant cavity. It is hence a not very small cavity. The wavelength is IR, several

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-25 Thread Jim Choate
On Tue, 24 Jul 2001, Eugene Leitl wrote: > On Mon, 23 Jul 2001, Jim Choate wrote: > > > Maybe. But even mirrors can be burned through by a laser. And then we've > > Jim, why are you trying so hard to make a complete fool out of yourself, > in a public forum? > > A chemical laser needs active

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-25 Thread Eugene Leitl
On Mon, 23 Jul 2001, Jim Choate wrote: > Maybe. But even mirrors can be burned through by a laser. And then we've Jim, why are you trying so hard to make a complete fool out of yourself, in a public forum? A chemical laser needs active optics to track your remote target. What do you think that

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-25 Thread Eugene Leitl
On Mon, 23 Jul 2001, Jim Choate wrote: > Maybe. But even mirrors can be burned through by a laser. And then we've Jim, why are you trying so hard to make a complete fool out of yourself, in a public forum? A chemical laser needs active optics to track your remote target. What do you think that

Re: Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-25 Thread [EMAIL PROTECTED]
> My comment was limited to radiant energy weapons. As to those, the > critical vulnerability exists during launch and boost phase. The target is > slow, bright, large, has fuel on board and a nonarmored hull, which (as > other posters observed) can be weakened with enough flux. At least one of

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-24 Thread Steve Schear
At 06:05 PM 7/23/2001 -0500, Jim Choate wrote: >On Mon, 23 Jul 2001, Steve Schear wrote: > > > >It's the one they use primarily. > > > > Only because the rocket exterior has not been "stealthed" via high > > reflectivity and faceting. > >Maybe. But even mirrors can be burned through by a laser. An

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-24 Thread Jim Choate
On Mon, 23 Jul 2001, Steve Schear wrote: > >It's the one they use primarily. > > Only because the rocket exterior has not been "stealthed" via high > reflectivity and faceting. Maybe. But even mirrors can be burned through by a laser. And then we've got weight issues that this would entail. I

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-24 Thread Steve Schear
At 01:28 AM 7/23/2001 -0500, you wrote: >On Sun, 22 Jul 2001, Steve Schear wrote: > > > I wonder what the destructive mechanism is for this system? > >There was an article in IEEE Spectrum last year (I think) on one of the >systems. The main failure mechanism is weakening of the aeroshell and due

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-24 Thread Jim Choate
On Mon, 23 Jul 2001, Eugene Leitl wrote: > My comment was limited to radiant energy weapons. Even that's not sufficient since lasers have been demonstrated for mid-course assaults as well. > As to those, the critical vulnerability exists during launch and boost > phase. The target is slow, br

RE: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-24 Thread Eugene Leitl
On Mon, 23 Jul 2001, Trei, Peter wrote: > With high-powered lasers, one of the important destructive mechanisms > is blast - the outer layer of the illuminated object vaporizes, and > flies away from the rest of the target. The reactive force of this You're orders of magnitude away from such flu

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread D B
First post - I hope it goes out Here's a link to the first story I saw about this technology in TechnologyReview. http://www.technologyreview.com/magazine/jul01/freedmanall.asp --- David Honig <[EMAIL PROTECTED]> wrote: > >On Sun, 22 Jul 2001, Steve Schear wrote: > > > >> I wonder what the dest

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread David Honig
>On Sun, 22 Jul 2001, Steve Schear wrote: > >> I wonder what the destructive mechanism is for this system? > >There was an article in IEEE Spectrum last year (I think) on one of the >systems. The main failure mechanism is weakening of the aeroshell and due >to increased loading the missile comes a

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Eugene Leitl
On Mon, 23 Jul 2001, Jim Choate wrote: > Bull. Missiles are vulnerable to various assaults during their entire > flight. The aerodynamic forces during boost and terminal flight My comment was limited to radiant energy weapons. As to those, the critical vulnerability exists during launch and boos

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Eugene Leitl
On Mon, 23 Jul 2001, Jim Choate wrote: > Bull. Missiles are vulnerable to various assaults during their entire > flight. The aerodynamic forces during boost and terminal flight My comment was limited to radiant energy weapons. As to those, the critical vulnerability exists during launch and boos

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Eugene Leitl
On Mon, 23 Jul 2001, Sampo Syreeni wrote: > Seen some of this before. It's sexy, especially if one thinks of the > propaganda value: it's basically "death from above". You're saying it, "propaganda value". Missiles are only vulnerable during boost phase, while they still have fuel onboard. Chemi

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Sampo Syreeni
On Sun, 22 Jul 2001, Jim Choate wrote: >Point this baby at the ground... > >http://washingtonpost.com/wp-dyn/articles/A27248-2001Jul20.html Seen some of this before. It's sexy, especially if one thinks of the propaganda value: it's basically "death from above". Sampo Syreeni, aka decoy, mailto:

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Jim Choate
On Sun, 22 Jul 2001, Steve Schear wrote: > I wonder what the destructive mechanism is for this system? There was an article in IEEE Spectrum last year (I think) on one of the systems. The main failure mechanism is weakening of the aeroshell and due to increased loading the missile comes apart.

Re: Air Force Turns 747 Into Holster for Giant Laser (washingtonpost.com)

2001-07-23 Thread Steve Schear
At 09:14 AM 7/22/2001 -0500, you wrote: >Point this baby at the ground... > >http://washingtonpost.com/wp-dyn/articles/A27248-2001Jul20.html I wonder what the destructive mechanism is for this system? Heat by radiant absorption seems an obvious but impractical method. If it is, then as the ar