There had been talk about it. I think they decided to go with the railgun program.
On Tue, Sep 7, 2010 at 9:53 AM, Martin Baxter <martinbaxt...@gmail.com>wrote: > > > I just read a report on the laser-based 747. As long as they don't waste > money trying to reinvigorate SDI, I'm good. > > > On Tue, Sep 7, 2010 at 9:40 AM, Mr. Worf <hellomahog...@gmail.com> wrote: > >> >> >> Yea, they have been using lasers to mark targets since the 70s. They are >> developing 747s now that have lasers. >> >> On Tue, Sep 7, 2010 at 3:33 AM, Martin Baxter <martinbaxt...@gmail.com>wrote: >> >>> >>> >>> I was about to blast this article for the ludicrous notion that lasers >>> could knock anything at distance out of the sky (the power and focusing >>> issues alone will preclude that for years to come), but the jamming factor >>> does seem plausible. >>> >>> >>> On Mon, Sep 6, 2010 at 6:09 PM, Mr. Worf <hellomahog...@gmail.com>wrote: >>> >>>> >>>> >>>> UM develops lasers to defend helicopters against missile attacks >>>> >>>> By Ben Coxworth <http://www.gizmag.com/author/ben-coxworth/> >>>> >>>> *11:36 September 4, 2010* >>>> >>>> [image: New laser technology could be used to protect military >>>> helicopters from heat-seeking >>>> missi...]<http://www.gizmag.com/lasers-protect-helicopters-from-missiles/16251/picture/120131/> >>>> >>>> New laser technology could be used to protect military helicopters from >>>> heat-seeking missiles >>>> Laser Marking >>>> Machines<http://googleads.g.doubleclick.net/aclk?sa=l&ai=BD41bWWWFTLeGO5GqjQS8mdyuBd2thqkBwe-cvBTAjbcBsIPKARABGAEgs9z6ASgEOABQ8u6WqPv_____AWDJxs2GyKOgGbIBDnd3dy5naXptYWcuY29tugEKMzAweDI1MF9qc8gBAdoBmQFodHRwOi8vd3d3Lmdpem1hZy5jb20vbGFzZXJzLXByb3RlY3QtaGVsaWNvcHRlcnMtZnJvbS1taXNzaWxlcy8xNjI1MS8_dXRtX3NvdXJjZT1HaXptYWcrU3Vic2NyaWJlcnMmdXRtX2NhbXBhaWduPTdiYzhmNjJhOWYtVUEtMjIzNTM2MC00JnV0bV9tZWRpdW09ZW1haWyoAwHoA50F6AOAKOgD6AX1AwIAAEQ&num=1&sig=AGiWqtxrPD5FxU8wndmIlPWJabPMcSvaqQ&client=ca-pub-1607124478120364&adurl=http://www.laserstar.net/3500_series.html> >>>> - 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The lasers >>>> wouldn’t shoot down the missiles, but would instead jam their sensors, >>>> essentially blinding them. This isn’t the first time that laser >>>> systems<http://www.gizmag.com/go/7461/> have >>>> been used for this purpose, but the creators of *this* system claim >>>> that it is better suited to helicopters than anything that has come before. >>>> >>>> The UM <http://www.umich.edu/> system detects incoming missiles, then >>>> shoots at them with a mid-infrared supercontinuum laser. While most lasers >>>> emit light of just one wavelength, supercontinuums pack a broad range of >>>> wavelengths into their focused beam. Although such lasers typically emit a >>>> beam of visible light, due to the fact that this is a mid-infrared >>>> supercontinuum, its beam isn’t seen but is felt as heat. The resulting >>>> broad >>>> spectrum infrared beam mimics the electromagnetic signature of a helicopter >>>> engine, and causes the missile to lose track of where the actual helicopter >>>> is. It is said to be effective up to a distance of 2.9 km (1.8 miles). >>>> >>>> One of the big strengths of this system, according to its makers, is its >>>> simple design and off-the-shelf fiber optic parts. “The laser-based >>>> infrared >>>> countermeasures in use now for some aircraft have 84 pieces of moving >>>> optics. They couldn't withstand the shake, rattle and roll of helicopters,” >>>> said Mohammed Islam, a professor in the Department of Electrical >>>> Engineering >>>> and Computer Science. “We've used good, old-fashioned stuff from your >>>> telephone network to build a laser that has no moving parts.” >>>> >>>> Islam’s claims may soon be put to the test – his UM spin-off company, Omni >>>> Sciences <http://www.omnisciinc.com/index.htm>, has recently received >>>> US$1 million in grants from the US Army and the Defense Advanced Research >>>> Projects Agency (DARPA <http://www.gizmag.com/tag/darpa>) to build a >>>> second-generation prototype. >>>> >>>> >>> >>> >>> -- >>> "If all the world's a stage and we are merely players, who the bloody >>> hell wrote the script?" -- Charles E Grant >>> >>> http://www.youtube.com/watch?v=fQUxw9aUVik >>> >>> >>> >> > > > -- > "If all the world's a stage and we are merely players, who the bloody hell > wrote the script?" -- Charles E Grant > > http://www.youtube.com/watch?v=fQUxw9aUVik > > > >
