• Access to the capstan and winch
room
• Access to the chain locker
• Access to the stores elevator
control
• Access to the catapult machinery room
• Access to forced draft blower rooms
• Access to fan rooms
CIRCLE XRAY fittings are marked with a
black X inside of a black circle. These modified
closures are secured during conditions XRAY,
YOKE, and ZEBRA. However, personnel may
open these fittings without special authorization
when proceeding to battle stations or as required
in routine inspection checks. You may open these
closures, but you must secure them immediately
after use. You will find this classification on the
following closures:
Doors to magazines and handling rooms
Hatches that do not have a scuttle and lead
to magazines and handling rooms
Access to the missile handling and check-
out area compartments
Scuttles in hatches to the shaft alley, pump
rooms, magazines, and handling rooms
Access to the gas and fuel station and filter
rooms
Access to the oxygen-nitrogen rooms
(compressor and producing)
Access to the switch gear room, ammuni-
tion hoist, and elevators
Access to the underwater log room
Access to the equipment rooms that are
unoccupied
Scuttles for passing ammunition
YOKE fittings are marked with a black Y.
These closures are secured during conditions
YOKE and ZEBRA. You must have proper author-
ization to open fittings with this classification
when the ship is at condition YOKE or ZEBRA.
You will find this classification on the following
closures:
• Hatches that are provided with a scuttle
and lead to shaft alleys and pump rooms
• Alternate accesses to machinery rooms
• Weather-deck hatches not classified as
XRAY
• Some alternate accesses on the DC deck
and above
• Access to the windlass room
• Access to the air-compressor room
• Access to the air-conditioning machinery
room
• Access to the refrigeration machinery
room
• Access to the elevator machinery room
• Access to the missile director machinery
room
• Access to the drying room
CIRCLE YOKE fittings are marked with a
black Y inside of a black circle. These modified
fittings are secured during conditions YOKE and
ZEBRA. However, these fittings may also be
opened without special authorization when per-
sonnel are proceeding to battle stations or as
required in routine inspection checks. Again, you
must secure these closures immediately after use.
You will find this classification on the following
closures:
Hatches that lead to the shaft alley and
pump room and do not have a scuttle
Scuttles in the deck to the shaft alley and
pump room
Doors at the bottom of the trunk to the
shaft alley and pump room
Access to the steering gear power and ram
room
Access to the chill room
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