Expedient Explosives (Chapter 13)

Question 1

22. What consist of Incendiary mix?

Answer 1

Incendiary mix may be thermite or mixture of 2 parts aluminum powder/magnesium powder to 3 parts of ferric oxide

Question 2

30. How much M112 is placed on a 81 mm?

Answer 2

1/3 block

Question 3

20. How to calculate stand off distance of expedient shape charge?

Answer 3

1.5 x diameter of cone

Question 4

34. What is N.E.W of 60 mm?

Answer 4

1lb

Question 5

29. How much M112 is placed on a 60 mm?

Answer 5

¼ block

Question 6

For Crimper method time fuse, Top of tightening nut to top of jaw is how many seconds?

Answer 6

4 Sec

Question 7

11. What is most crucial component of platter charge?

Answer 7

Buffer material for plate (thick card board, or rubber)

Question 8

7. What is the formula for expedient shape charge?

Answer 8

Volume of Cylinder – Volume of Cone = Explosive volume

Question 9

17. What is the 3 and 5 rule of dust initiator charge?

Answer 9

It used step 5 of dust initiator formula

3 = enclosed 5= partially enclosed

Question 10

4. What is the consideration when use expedient shaped charge?

Answer 10

a) Consistent result are difficult to obtain due to variables such as explosive density, configuration, and cavity liner density
b) If no liner is present, it uses a hot air jet

Question 11

8. What is the formula for volume of cylinder?

Answer 11

3.14 x R^2 x Height of explosive (2 x height of the cone)

Question 12

43. Can you remove white phosphorus grenade?

Answer 12

No. Do not remove the fuse

Question 13

42. What is the minimum distance for emplace daisy chained claymores?

Answer 13

3-5 meters apart at a minimum

Question 14

5. What container can be used to construct an expedient shaped charge?

Answer 14

Almost any container will work (Cans, Jars, bottles, drinking glasses, wine and whisky bottles)

Question 15

3. What is expedient shaped charge?

Answer 15

Designed to produce a tubular or linear fracture/hole in a target
Use an explosively formed plasma jet to penetrate the target

Question 16

19. What is the optimum angle of cavity for expedient shape charge?

Answer 16

42 to 45 Degree

Question 17

1. What is Munroe effect?

Answer 17

An explosive arranged in a concave pattern have greater effect on a target.

Question 18

10. What is difference between the Munroe effect and Miznay cardin effect?

Answer 18

Munroe effect: shock waves reflect to each other which increasing speed of explosive, and forms a Jet
Miznay effect: large sheet of explosive with a sturdy metal backing plate. After initiation, the explosion turns the metal plate into a blunt nosed projectile

Question 19

18. In dust initiator charge, 1lb of explosive will effective up to what

Answer 19

Up to 40lbs of cover

Question 20

31. How much M112 is placed on a 4.2 IN?

Answer 20

½ block

Question 21

24. How much M-4 fuel thickening compound would you use for a 55 gallon fuel drum?

Answer 21

Use 3 ounces M-4 thickening compound per gallon

150 ounces M-4 and 50 gallons

Question 22

36. What is N.E.W of 4.2 IN?

Answer 22

9lbs

Question 23

2. What types of explosive used in expedient shaped charge?

Answer 23

Plastic explosive

Question 24

35. What is N.E.W of 81 mm?

Answer 24

2lbs

Question 25

14. What is the characteristics of dust initiator charge?

Answer 25

a) Most effective in closed spaces | b) Charge size is 1lb (half explosive / half incendiary mix)

Question 26

9. What is the formula for volume of cone?

Answer 26

3.14 x R^2 x 1/3 height of cone

Question 27

32. How much M112 is placed on a 105 mm?

Answer 27

½ block

Question 28

23. What types of fuel (oil) can be used for expedient flame fougasse?

Answer 28

Non ethanol gas

Question 29

16. What is the charge size of the dust initiator charge?

Answer 29

Charge size is 1lb (half explosive / half incendiary mix)

Question 30

40. What are the two ways to prime mortar rounds?

Answer 30

a) To prime from fuse-well Remove carrying ring, or fuse, and pack fuse well with C4 b) To prime externally Up to 240mm, detonate with 2lbs explosives in good contact with case, just forward of rotating band

Question 31

33. How much M112 is placed on a 120 mm?

Answer 31

1 block

Question 32

6. What is optimum characteristic of an expedient shape charge?

Answer 32

a) Cavity liner: Copper, zinc, glass, and tin b) Cavity angle: 42-45 degree (will work 30-60 degree) c) Explosive height: two times the cone height d) Standoff height: 1 ½ the diameter of cone e) Detonation point: exact top center of the charge

Question 33

25. For Crimper method time fuse, base of leg to top of jaw is how many seconds?

Answer 33

25 sec

Question 34

38. What is N.E.W of 120 mm?

Answer 34

10lbs

Question 35

15. What is the formula of dust initiator charge

Answer 35

(Cubic Volume divided by 1000) X 3 or 5 , then divide by 40 | Round up to whole number

Question 36

39. All mortar and artillery have what?

Answer 36

All have COMP B filler with an RE Factor of 1.38

Question 37

27. For Crimper method time fuse, the nut itself is how many seconds?

Answer 37

1 Sec

Question 38

41. What is claymores made of?

Answer 38

1.5lbs C4 filler with RE factor of 1.34

Question 39

28. What must be done prior to prime mortar and artillery rounds?

Answer 39

``` Remove increments (cheese charges, powder bags) Tape and Prime C-4 to widest part of round ```

Question 40

21. What is the ratio of fertilizer to wax in AN Stachel Charge?

Answer 40

4 pounds of fertilizer to 1 pound of wax

Question 41

37. What is N.E.W of 105 mm?

Answer 41

10lbs

Question 42

13. How to calculate amount explosive of grapeshot?

Answer 42

¼ of the projectile weight = amount of explosive

Question 43

12. What the explosive weight of platter charge and how to prime?

Answer 43

Explosive weight = weight of the plate (2-6 lbs) | Prime rear center