Quote:
|
Originally Posted by x SF med
Damn! 14 wraps of Detcord?  Guess that means you are still hard as nails COL Jack... 3 would probably be over kill on me.  |
For cutting trees, piles, posts, beams or other timber members using explosives as an untamped external charge, the following formula is used: P = D2/40 or P = .025 D2 where, P = pounds of TNT required, D = diameter of round timber, or least dimension of dressed timber, in inches, and 1/40 = .025 = constant. Adjustment for explosive other than TNT will be made by dividing by the relative effectiveness factor that pertains to the particular explosive being used. The amount of explosive required to cut a round timber 30 inches in diameter using an untamped external charge is determined as follows: P = D2/40 P = (30)ý/40 = 900/40 = 22.50 pounds of TNT.
22 pounds of TNT for a 30" waist, or 16.4 pounds of C4. Note that the numbers are for staning generic timber, including hardwoods, as I suspect that the Colonel is, probably oak or hickory. Pine will fall with half of that charge.
THAT is a lot of demo. I am sure that a troll shot is much smaller.
TR
__________________
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
|