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TM 55-1925-273-10-1
The unique action of AFFF stems from its ability to make a lightwater film float on flammable fuels. As foam is applied over
the flammable liquid surface, an aqueous solution drains from the foam bubbles. The aqueous solution then floats out over
the surface of the flammable liquid to provide a vapor seal. This aqueous film-forming action enhances extinguishment and
prevents reflash, even when the foam blanket is disturbed. Flammable liquids such as fuel that have not been ignited can be
protected with this action. AFFF can be used alone or in combination with dry chemical powder.
FIRE STATIONS
There are 11 fire stations located throughout the vessel. Each is provided with 50 feet (5.2 meters) of 1-1/2 inch diameter
high pressure fire hose (figure 2, item 1), a spanner wrench (figure 2, item 2), and an all-purpose nozzle (figure 2, item 3).
3
2
1
Figure 2. Fire Station
The purpose of the fire stations is to make pressurized firefighting water available to multiple locations on the vessel.
The fire stations are capable of shooting 70 gallons (265 liters) of water per minute (in a solid stream) about 75 feet
(23 meters) when pressurized to 100 PSI (6.9 bar). Refer to table 1 and figures 3 and 4 for fire station locations.
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