Breaching

Question 1

What is the formula for Breaching Charges ?

Answer 1

Pounds = Route 3 to Kansas City

Pounds = Breaching Radius (Cubed) X Constant X Tamping.

Question 2

For External Breaching charges you around to _____?

For Internal Breaching charges you around to _____?

Answer 2

EXT. around up to the next 1/2 foot.

INT. around up to the next 1/4 foot.

Question 3

For Internal Charges, Breaching Radius is ____ the thickness of the Target ?

Answer 3

Half.

Question 4

Tamping should be equal to or greater than what ?

Answer 4

Breaching Radius.

Question 5

What is the Formula to find the Number of Charges ?

Line 5

Answer 5

Number of charges = Width (Divided) 2 Radius.

Question 6

If N is less than 1.25 use ___ charge ?

Answer 6

One

Question 7

If N is 1.25 and less than 2.5 use ___charges ?

Answer 7

Two.

Question 8

If N is 2.5 or greater ?

Answer 8

Round OFF to nearest whole number

Question 9

If the amount of Explosives is less than 5 pounds, How thick would your charge be ?

Answer 9

One inch.

Question 10

If the amount of Explosives is 5 pounds to less than 40 pounds, How thick would your charge be ?

Answer 10

Two inches.

Question 11

If the amount of Explosives is 40 pounds to less than 300 pounds, How thick would your charge be ?

Answer 11

Four inches.

Question 12

If the amount of Explosives is greater than 300 pounds, How thick would your charge be ?

Answer 12

Eight inches

Question 13

What is the formula for a Counter Force Charge ?

Answer 13

Pounds = Radius X Breaching Radius (1.5)

Question 14

Which do you divide a Counter Force charge by Cubic Volume or Package Weight ?

Answer 14

Package weight

3) N/A
4) Divide by Package weight

Question 15

What are Opposed Counter Force charges effective against ?

Answer 15

Rectangular masonry or concrete columns 4 feet thick or less.

Question 16

For expedient Breaching of a hard surface use ___pounds of explosive per 2 inches of pavement ?

Answer 16

1 pound of explosives Per 2 inches of pavement.

Tamp Twice the Breaching Radius

Question 17

By line go through the 6 step problem solving format for breaching charges ?

Answer 17

1) Critical info: Int. or Ext., R3KC Total Number of Targets
2) P= R3 X k X C =
3) Divide by RE
4) Divide by Package weight = Number of explosives
5) N= Width (divide by) R (times) 2 = Number of Charges
6) Explosives (times) Number of Charges = Total Packages Don’t forget to times by number of Targets