12-10
DIMENSIONS
(nominal)
NORMAL USE
NORMAL
EXPLOSIVE
LIMIT
LETTER
DESIGNATOR
25' × 80' arch type (igloo)
25' × 50' arch type (igloo)
25' × 40' arch type (igloo)
39' × 44' or 32' × 44' (warhead type)
12' × 17' (box type)
Miscellaneous or nonstandard size
Open storage
25' × 20' arch type (igloo)
52' dome (Corbetta type)
Dimensions vary (gallery or tunnel type)
10' × 14'
10' × 7'
6' × 8'8" (Keyport type)
52’ × 97’ (box type A)
62’ × 76’ (box type B)
High explosives
High explosives
High explosives
High explosives
Black powder
High explosives
High explosives
Fuze and
detonator
High explosives
High explosives
Fuze and
detonator
Fuze and
detonator
High explosives
High Explosives
High Explosives
500,000 lb
250,000 lb
250,000 lb
500,000 lb
20,000 lb
Dependent
upon size,
location,
construction
Dependent
upon size,
location
70,000 lb
500,000 lb
250,000 lb
15,000 lb
7,500 lb
4,000 lb
500,000 lb
500,000 lb
A
B
B
W
E
X
R
F
D
G
H
H
K
A
A
Table 12-6.—Magazine Designators for Mass Detonating Hazard of High Explosives (Bulk, Depth Charges, Mines, Warheads,
Bombs, etc.), Fuzes, Detonators, Exploders, and Black Powder
