Explosives found at Greyhound bus terminal: cube law
Tabla bin Rasa
tbr at tbr.com
Fri Oct 19 16:33:13 PDT 2001
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.
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