ANTI AIRCRAFT BATTERY

SN A site containing one or more artillery pieces and/or rocket launchers for firing at enemy aircraft.
CL MILITARY DEFENCE AND FORTIFICATION
BT ANTI AIRCRAFT DEFENCE SITE
NT ANTI AIRCRAFT BATTERY COMMAND POST
ANTI AIRCRAFT GUN EMPLACEMENT
BATTERY OBSERVATION POST
HEAVY ANTI AIRCRAFT BATTERY
LIGHT ANTI AIRCRAFT BATTERY
Z BATTERY
RT BATTERY ENGINE HOUSE