Part 7 - Firing Devices and Demolition Stores; Chapter 4: Navy Demolition Stores; PrimersPart 7 - Firing Devices and Demolition Stores; Chapter 4: Navy Demolition Stores; Cavity Charges
BRITISH EXPLOSIVE ORDNANCE
Part 7 - Chapter 4
Navy Demolition Stores

Explosive Charges

C.E./TNT Block Mk I

Explosive weight

14 oz.

Length

4½ in.

Width

2¼ in.

Height

1 7/8 in.

Total weight

14 oz.

Container

Metal

Remarks

May be made up into a 25-ft. chain demolition charge
TNT Block Mk I

Explosive weight

1¼ lb.

Length

6 in.

Diameter

2.4 in.

Total weight

1¼ lb.

Container

Paper

Remarks

Usually inserted in a TNT Container Mk I, made of sheet steel
Amatol Charge Mk I

Explosive weight

10 lb.

Length

8.3 in.

Diameter

6.5 in.

Total weight

18½ lb.

Container

Mild steel

Remarks

Receive one 4-oz. primer and a Detonator No. 6
Amatol Charge Mk I

Explosive weight

25 lb.

Length

18.2 in.

Diameter

6.6 in.

Total weight

39½ lb.

Container

Mild steel

Remarks

Receives two 4-oz. primers and No. 6 detonators
Amatol Charge Mk II

Explosive weight

25 lb.

Length

18.5 in.

Diameter

6.6 in.

Total weight

41 lb.

Container

Mild steel

Remarks

Receive one 1¼-lb. TNT block
Amatol Charge Mk I

Explosive weight

50 lb.

Length

18.5 in.

Diameter

9 in.

Total weight

70½ lb.

Container

Mild steel

Remarks

Receives two 4-oz. primers and No. 6 detonators

In addition to these, heavy demolition is sometimes accomplished by adapting Depth Charges Mk VII, Mk VIII, Mk XI, and D Mks I and II, and Mine Charge Case Mk V for de-molition firing.

Part 7 - Firing Devices and Demolition Stores; Chapter 4: Navy Demolition Stores; PrimersPart 7 - Firing Devices and Demolition Stores; Chapter 4: Navy Demolition Stores; Cavity Charges