NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Cel Nav and missile submarines
From: Gary LaPook
Date: 2012 Apr 11, 02:48 -0700
From: Gary LaPook
Date: 2012 Apr 11, 02:48 -0700
"Close only counts in horseshoes, howitzers and hand grenades." For nukes accuracy is extremely important because the yield needed to produce a certain overpressure varies with the cube of the distance. For example, it takes 500 psi overpressure to take out a hardened missile silo. If you need a 95% assurance of destruction and the CEP of your nuke is .5 miles then you will need an 18 megaton device. If you can improve the CEP to .25 miles than you only need 2 MT and if you can improve the accuracy to 1/8th mile you only need 500 kt, 1/2 MT. Nukes cost by the pound, for the device itself and for the delivery system so it is a wise investment to spend money to improve the accuracy of the delivery system instead of making bigger nukes. See attached. gl --- On Tue, 4/10/12, Lu Abel <luabel@ymail.com> wrote:
|