19 Oct
2001
19 Oct
'01
8:06 p.m.
At 05:27 PM 10/19/01 -0400, Greg Newby wrote:
How much damage could about 6 ounces of C4 do?
What do you want to do? [1] Breach a wall: P=R^3KC P=pounds TNT R=breaching radius in feet, rounded to next higher 1/2 ft K=material factor -earth is 0.05, weaker construction 0.25, reinforced concrete 0.70 if under 3 feet C-4 (typ. 90% RDX) is about 1.3 x as effective as TNT. Detonating cord has about 50 grn/ft PETN. [1] FM-25, Dept of the Army, May 1967 Modulo (nonexistant) tamping. Lots of fragments, though.