are secured to the structure by turnbuckle rods. The
magazine floor is a concrete slab placed on compacted
gravel or broken stone fall. A pair of 8-foot, double-leaf
doors are placed in the front wall of the magazine.
Screened louvers are placed in each door for ventilation,
Table 12-10 lists the available magazine sizes,
maximum storage capacities, and the recommended
separation distances between the magazines.
Table 12-10.—Prefabricated Advanced Base Magazines
A1.
A2.
A3.
A4.
A5.
A6.
A7.
A8.
A9.
A10.
All.
A12.
A barricade is placed opposite the front wall of each
magazine used for the storage of high explosives or
fuzes and detonators. The barricade extends to the
height of the inside crown of the magazine arch. The
barricade must be at least 3 feet wide at the crest and
slope to a grade on the natural slope of the earth used as
fill.
TEMPORARY SHELTERS AND COVER-
INGS.— If magazines or existing buildings aren’t
available at advanced bases for the storage of
ammunition, temporary shelters or coverings are
erected to protect ammunition that is stored in the open.
When tents are used, ventilate them during the heat
of the day by raising the sides at the top. Be careful to
prevent the direct rays of the sun from shining through
the peaks onto the piles of ammunition. When tents are
ventilated properly, air circulates freely around the piles
REVIEW NUMBER 1 ANSWERS TO QUESTIONS Q1. THROUGH Q12.
Mandatory regulations governing the storage of ammunition ashore are found in
OP 5, volumes 1 and 2.
The keyport magazine is a prefabricated, concrete-constructed magazine that is
earth-covered and arch-shaped.
The normal size of a box-type magazine is 12 feet by 17 feet.
The Corbetta magazine is a concrete-constructed magazine shaped like a beehive
or dome.
The Gallery magazine consists of a tunnel or cave that has varied dimensions.
WP-M23 igniters belong to Class 4 ordnance.
There are five subdivisions contained in DOD hazard Class 1.
Detonators and similar initiating devices are contained in storage compatibility
Group B.
Black powder belongs in compatibility storage group D.
Ammunition that doesn't present any signifiicant hazard is found in compatibility
Group S.
The first number in a magazine designator symbol shows the magazine group
number.
The letter T in the third position of a magazine designator indicates that the
magazine is earth-covered and barricaded.
12-14
