Article View: sci.space
Article #7528Re: fiber optic cable
From: Doug Mohney
Date: Mon, 11 Jan 1993 16:43
Date: Mon, 11 Jan 1993 16:43
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2163 bytes
In article <C0ozH8.4p4.1@cs.cmu.edu>, roberts@cmr.ncsl.nist.gov (John Roberts) writes:
>. Commercial fiber optic cable is great in stationary applications,
>but it's too easy to stretch it or bend it beyond the radius of curvature
>limits. The people who install our fiber optic links put up warning signs
>with a drawing of a hangman's noose, implying what will happen to anybody
>who tries to move the equipment. :-)
>
>Does anybody (the phone companies or the military, for instance) use
>fiber optic cable that's stiff enough to reduce the risk of breaking?
There are at least two missiles (Army/FOG-M, and a Navy project) which use
some sort
of spooling mechanism to pay out "cable" (well, probably not more than a
strand). The Army system is (forgive me pureists) basically a longer range TOW
anti-tank missile, designed to be launched off a trailer dragged behind a
Hummer, and will go against either tanks or helos. The Navy missile is more
interesting because they pay out cable between a fast moving attack plane and
the missile at up to hmm, at least 20 kilometers; Army system is some number
not more than 10K.
However, both Army and Navy don't have to worry about rewinding the cable after
the packages are delivered :-)
Both systems have been demonstrated as feasible/workable/makeable, but I'm not
sure what the current political funding headaches are. It's more a matter of
money & politics rather than technology which is holding up full-scale
production and deployment of both systems.
I have talked to Ehud, and lived.
-- > SYSMGR@CADLAB.ENG.UMD.EDU < --
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!wupost!darwin.sura.net!mojo.eng.umd.edu!cadlab.eng.umd.edu!SYSMGR From: sysmgr@king.eng.umd.edu (Doug Mohney) Subject: Re: fiber optic cable Message-ID: <1993Jan11.164353.26350@eng.umd.edu> Date: Mon, 11 Jan 93 16:43:53 GMT Organization: Computer Aided Design Lab, U. of Maryland College Park Distribution: sci References: <C0ozH8.4p4.1@cs.cmu.edu> Reply-To: sysmgr@king.eng.umd.edu Lines: 30