TM 55-607/NAVSEA OP 3221 Rev 2
CHAPTER 9
SECURING OF SPECIFIC LOADS
9-1. Introduction
configuration of the unit loads with characteristics of the
available stowage area, optimum use can be made of
Military explosives and ammunition loaded aboard
the two securing techniques. This principle is introduced
merchant-type vessels may be unitized on metal or
in the text and illustrations by providing alternate
wood pallets or skids, unitized in groups of containers,
stowage methods for the same item. This section
or shipped as single items as described in paragraph 4-
applies the general methods described in previous
4. The explosive loads are classified generally as
chapters for securement of specific loads of explosives
follows:
in C3 and C4 hulls. Procedures defined for a given item
a. Rectangular Unit Loads. Items unitized on wood
can vary with different compartments; however, the
pallets, metal pallets, or skids.
basic method will be applicable to similar commodities
b. Round, Single-Item Loads. Large items loaded
within that particular classification.
individually.
c. Overhanging Unit Loads.
9-2. Securing Rectangular Unit Loads
d. Single Containers and Unitized Loads of
a. 500-Pound Fire Bomb, MK 77 MOD 4,
Containers.
Palletized Unit Load.
Basic principles of block stowage or sweatboard-to-
(1) Stowage of palletized unit loads of
sweatboard stowage can be applied to all of the
500pound fire bombs, MK 77 MOD 4, is limited to areas
foregoing classifications; however, minor procedural
that have adequate height clearance, since this load is
modifications are often necessary in the stowage of
about 8 feet high. Figure 9-1 shows this commodity
these typical loads in the holds of merchant ships.
stowed in between deck 3, where there is not enough
Contour of the hull, particularly in lower compartments
clearance for two tiers. However, there is sufficient
of forward and aft holds, is a significant consideration in
clearance for overstowing with other kinds of loads.
selecting the most efficient stowage method for a given
compartment.
By a comparison of the size and
9-1
