and SONAR are both abbreviations for what sort of systems?
HMS Lark, a sloop of the modified Black Swan class, picked up the unmistakable Asdic
being powerful sonar) of a U-boat while we were patrolling near Murmansk.
ATS general duties and auxiliary officers, military: clerical, writers and assistants Engineers Building and engineering apprentices Professionals Nurses, student nurses and dental students Drivers ATS drivers and military lorry drivers Operators ATS: height takers, spotters, & kine theodol operators, military, Asdic
, radar and naval operators, naval coders, radar, wireless, teleprinter and switchboard operators, cipher operators, air traffic controllers Skilled Electricians (military and civilian).
Many know that ANZAC is the "Australian and New Zealand Army Corps," but who knows that ASDIC
is the "Antisubmarine Detection Investigation Committee." Is "ASDIC
Shortly thereafter, the remaining officers appeared and took over their various stations--Scott on the gun, Fenwick on navigation in the wheelhouse, and Lawrence on the ASDIC
Britain's best hope against Germany's submarines early on was ASDIC
, an underwater detection device similar to American sonar whose name probably derived from the initials of "anti-submarine division" with ic, meaning "of or related to," tacked to the end.
These were used alongside radar and the improved Asdic
equipment to more efficiently detect U-boats.
The primary tactical "enablers" were radar and visual search by ships and aircraft, and early sonar (American) or asdic
(British) acoustic sensors on surface ships.