TM 1-4220-250-12&P
1.9 EQUIPMENT DATA.
1.9.1 Weights and Dimensions. The following data is for a packed container assembly.
Height
13 inches
Length
13 inches
Width
2 inches
Weight
4.7 pounds
SECTION Ill. PRINCIPLES OF OPERATION
1.10 FUNCTIONAL DESCRIPTION.
1.10.1 Operational Characteristics. Upon entering the water during a ditching emergency, the life raft
assembly is inflated manually by pulling the beaded inflation handle which actuates the CO2 inflation assembly.
The inflation assembly will inflate the upper second, third, and fourth inflation tubes within approximately 30
seconds. The inflation of the raft automatically forces the snap fasteners and hook and pile closures of the container
to open, permitting the raft to attain its designed shape. The life raft is secured to the survivor by a tether line which
is attached to the container assembly. If the CO2 inflation assembly fails to operate, a secondary inflation valve is
provided for oral inflation of the second, third, and fourth inflation tubes. After boarding, additional buoyancy may
be added by orally inflating the remaining tubes through the primary oral inflation valve. Complete inflation of all
cells can be accomplished within five minutes. See Figure 1-2.
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