GLOSSARY

ABBREVIATIONS
SBA	Sick Berth Attendant	MTB	Motor Torpedo Boat
AB	Able Seaman	AMC	Armed Merchant Cruiser
OD	Ordinary Deck Hand/Ordinary Seaman	LSI	Landing Ship Infantry
PO	Petty Officer	A/S	Anti Submarine (ASDIC)
CPO	Chief Petty Officer	AP	Armour Piercing
GM	Gunner's Mate	HE	High Explosive
CGM	Chief Gunner's Mate	ML	Motor Launch
TS	Transmitting Station	LCI	Landing Craft Infantry
KR and KI	Kings Regulations and Admiralty Instructions	LST	Landing Ship Tank
		EBI	Evershed Bearing Indicator

US NAVY COMBAT SHIP TYPE DESIGNATIONS
BB	Battleship	SS	Submarine
CV	Fleet Aircraft Carriers (Large)	PF	Frigate
CVE	Auxilliary Aircraft Carrier	PC-SC	Submarine Chasers
CA	Heavy Cruiser	PT	Motor Torpedo Boat
CL	Light Cruiser	AM	Mine Sweeper
DD	Destroyer	DM-DMS	Destroyer Minelayer/Sweeper
DE	Destroyer Escort	YMS	Motor Mine Sweeper

PHILIPPINE INVASIONS - CODE WORDS
ANGELS	Altitude in thousands of feet
BANDIT	Identified enemy aircraft
BOGEY	Unidentified enemy aircraft
CHICKENS	Friendly fighters
CONTROL*	Anti Aircraft fire control
FRIENDLY	Friendly aircraft
SHAD	Enemy shadower
SNOOPER	Enemy low shadower (below 2000 feet)
SWING IT	Commence zigzagging
AS YOU WERE	Cease zigzag, resume base course
ROUGHNECKS	All ships this circuit
*Control signals (for AA purposes)

	Signal	Meaning
1.	Flash Red	Air attack imminent, enemy aircraft in vicinity.
	Control Yellow	All ships set Condition 1. (Action Stations) All guns fire on any air target identified as enemy.
	Control Green	All guns hold fire on air targets but may open fire if directly attacked by enemy aircraft.
2.	Flash Blue	Air attack probable Unidentified aircraft in vicinity All ships set Condition 2. (Second degree of readiness)
	Flash Blue
	Control Yellow	All guns fire as above
	Control Green	All guns hold fire as above
3.	Flash White	All clear Aircraft identified as friendly Hostile aircraft no longer in area