Appendix E. Refer to par. 18.104.22.168 for other structural
features pertaining to the fireplace opening.
22.214.171.124 Foam Deck. Eight identical foam decks should be
located around the perimeter of the training deck. The floor of
the foam deck should be constructed of steel grating and located
1067 mm below the training deck. The foam deck should include
firefighting equipment found on both a destroyer deck (DD) and
an aircraft carrier deck (CV). Each deck should be configured
in accordance with Appendix E, Figure E-3. Although this
combined deck is not set up to duplicate a station found on
ships, appropriate gear is available for use. Included should
be a foam reel with 38 100 mm of 40 mm hose, two faked hose
racks, with 30 480 mm of 65 mm hose each, a stand pipe (SP) hose
station with 1219 mm applicator, two faked hose racks, each with
30 480 mm of 40 mm hose, an electrical foam pump start station,
by the device contractor. Foam should be delivered to the deck
through a 80 mm pipe with a 40 mm branch leading to the reel
through a ball valve. The 80 mm pipe should terminate in a 65
mm service valve, in accordance with NAVSHIPS Dwg. 803-1385712.
Both the foam pipe and the SP hose station should be deactivated
by a valve out of sight of the trainee which can be operated by
the instructors. The safety rail can be used for supports for
the faked 60 960 mm of 40 mm hose. The deck steel grating
should be sectionalized and securely fastened so it can be
easily removed for maintenance.
a) The foam station is activated by depressing the
electric foam pump start button which opens the water control
valve and starts the proportioning pumps pressurizing the system
with proportioned (3 percent) foam. See Figure E-6 in Appendix
E. The fire can then be fought with both 40 mm and 65 mm hoses.
The amount of foam used for any one training exercise should be
500 gpm or two 65 mm hoses. To depressurize the system, the
electric foam pump stop button should be depressed.
b) On the smaller ships the foam reel is supplied by
an FS station using an FP-180 foam proportioner; however these
reels are not on the flight deck. The device 19F4 is for
training firefighting techniques on aircraft decks; the FP-180
training should be accomplished onboard ship.