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Appendix 11: Glossary of Code Names and Abbreviations

A.A.S.F Advanced Air Striking Force.
ABIGAIL Bomber operation in December 1940 designed to produce the ‘maximum possible destruction in a selected German town’.
A.D.G.B. Air Defence of Great Britain.
A.I. Air interception—radar set carried by fighters.
A.M.E.S. Air Ministry Experimental Station (i.e. radar station).
A/S. Anti-submarine.
A.S.V. Air-to-surface vessel—Airborne search and homing radar used for anti-U-boat and anti-shipping operations.
BARBAROSSA (German) Code-name for the invasion of Russia.
BATTLE-AXE Operation to relieve Tobruk—Western Desert, June 1941.
BITING Raid on enemy radar installation at Bruneval, 27/28th February 1942.
CIRCUS Offensive operation by fighters and bombers on the Continent to prevent the withdrawal of the G.A.F. to the eastern front.
COLOSSUS Airborne combined operation against an aqueduct at Tragino on 10/11th February 1941.
D.W.I. Directional Wireless Installation (mine-exploding device on aircraft).
DYNAMO Evacuation from Dunkirk, 26th May–4th June 1940.
E.A. Enemy aircraft.
E.T.A. Estimated time of arrival.
EUREKA Portable ground radio-beacon
F.C. Fighter Catapult (ship).
FREYA German radar installation for long-range detection.

Counter-measures against the escape of the Scharnhorst and Gneisenau from Brest.

GEE Medium range radio aid to navigation employing ground transmitters and airborne receiver.
G.L. Gun-laying (radar).
G.P. General Purposes (bomb).
HABFORCE Force sent from Trans-Jordan across desert to relieve Habbaniya in May 1941.
HADDOCK Organization for operating British bombers frm South of France against Italian targets—June 1940.
H.E. High-explosive.
HEADACHE Counter-measures against German navigational beams.
I.F.F. Identification friend or foe—device on aircraft for identifying ‘friendlies’ to radar stations.
INTRUDER Night operations designed to impeded the enemy in his use of airfields.

Jagdgeschwader, i.e. German Fighter Group.


Kampfgeschwader, i.e. German Bomber Group.


Kampfgruppe, i.e. German Bomber Wing.

KNICKEBEIN (German) Navigational beam.
LAYFORCE Commando force operating in Middle East.
MARITA (German) Invasion of Greece and Yugoslavia.
MOONLIGHT SONATA (German) Operation against Coventry, November 1940.
M.T. Mechanical transport.
MUTTON The Long Aerial Mine.
NICKELS Leaflets.

Oberkommando der Luftwaffe, i.e. High Command of the G.A.F.


Oberkommando der Wehrmacht, i.e. High Command of the German Armed Forces.

O.T.U. Operational Training Unit.
P.A.C. Parachute and Cable defence.
P.R.U. Photographic Reconnaissance Unit.
R.D.F. Radio-direction finding—early name for radar.
RHUBARB Offensive operations by fighters designed to make enemy retain strong air forces in western Europe.
R/T. Radio-telephone.
S.A.P. Semi-armour piercing (bombs).
SEALION (German) Plan for invasion of England—1940.
S.L.C. Searchlight Control (radar).
STOPPER Coastal Command patrol outside Brest.
STRAFGERICHT (German) Bombing of Belgrade—April 1941.

Sturzkampfflugzeug, i.e. dive-bomber.

T.R.E. Telecommunications Research Establishment.
UMBRELLA (German) Projected attack on Birmingham—November 1940.
U.P. Unrotating projectile (rocket).
V.H.F. Very high frequency (R/T).
WESERÜBUNG (German) Plan for invasion of Norway and Denmark—1940.
W/T. Wireless telegraphy.
WÜRZBURG (German) Ground radar system used for controlling searchlights, anti-aircraft guns and night-fighter aircraft.
X-GERÄT, Y-GERÄT (German) Navigational radio devices.

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