Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac,att!cbnews!cbnews!military From: chidsey@smoke.brl.mil (Irving Chidsey) Newsgroups: sci.military Subject: Re: Weapon selection Message-ID: <1991Mar18.141241.23476@cbnews.att.com> Date: 18 Mar 91 14:12:41 GMT References: <1991Mar15.040039.9604@cbnews.att.com> Sender: military@cbnews.att.com (william.b.thacker) Organization: U.S. Army Ballistic Research Laboratory, APG, MD. Lines: 34 Approved: military@att.att.com From: Irving Chidsey In article <1991Mar15.040039.9604@cbnews.att.com> lenochs%drcoa1.decnet@drcvax.af.mil (DRCOA1::LENOCHS) writes: < < Kevin sez: < < >If multiple shells are going to be fired at a target, I would expect < >them to arrive in a single-modal, bi-variate x-y Gaussian < >distribution; the number of rounds used to destroy a target being < >calculated using the methods of quality-control for a stationary < >single target, or operations research (OR) to incapacitate a dynamic < >or multiple-point target. < < ?!?!? What'd he say ?!?!? Gaussian = bell shaped, single-modal = one hump, x-y = along the ground, bi-variate = eliptical ( i.e., the cross range errors probably do not = the down range errors. Quality control and operations research people have already figured out the necessary math. Or were you just firing for effect at a dense pile of statistical jargon in a non statistical newsletter? In sci.military it probably should have been 'an SM, BVXYGD', and every one would have nodded, said of course, and run to find their acronym dictionary. Irv -- I do not have signature authority. I am not authorized to sign anything. I am not authorized to commit the BRL, the DA, the DOD, or the US Government to anything, not even by implication. They do not tell me what their policy is. They may not have one. Irving L. Chidsey