Note II on LIAISON WORK,CALLSIGNS etc. 11 July 1918

Note II on LIAISON WORK,CALLSIGNS etc.

X = Corps Headquarters Station, i.e. Main Report Centre.

X = Divisional Dropping Station sign, as authorised.
Divisional calls might be
DW)
DX) (Note D is formed by strips)
DY)
DZ)
So that in event of loss of some strips the letters above would indicate a Division.

= Brigade Headquarters as authorised, and calls might be
WW)
WX) for W Division’s Brigades.
WY)
WZ)

XW)
XX) for X Division’s Brigades.
XY)
XZ)
Etc., so that in the event of loss of the special signal the letter alone would indicate a Brigade.

D = Battalion Headquarters and call signs might be any starting with earlier
letters of the Alphabet, so that in the event of the special sign being lost they would still be recognised as Battalion Headquarters though the Division would not be known to the Airman.

All Artillery formations to which calls are allotted will use the prefix N if not in action as regards aerial observation, L if they are ready to fire with a plane.

All Infantry formations will display their signals as usual on the call by aeroplane of a series of A’s on KLAXON and a white Very Light.
All Artillery formations will display their signals as usual on the call by aeroplane of a series of B’s from KLAXON and a green Very light.
——————–

Strips of formations at some distance from the battle line will be more visible if a flare is burnt near them or a smoke fire lit.
———————–

A special unit may be demanded by its call letters on KLAXON
———————–
The aeroplane will acknowledge having seen strips by repeating the call letters with R.D. or by diving on the strip.

—————————————-
Popham panel work will be carried out as usual with the accepted code.
—————————————————

Any formation which is about to move should put out its strips and add an arrow to its strips giving the direction in which it will proceed.

N.B. the French System of Ground Panels has much to recommend it. It is reproduced below:-

FRENCH SYSTEM OF GROUND SIGNALS.

CORPS. –

DIVISION. –

BRIGADE. –

REGIMENT. –

BATTALION. –

(Each sign is 3 metres over its maximum diameter Squares or bands 4 centimetres wide)

J.A. C****
Lieut Colonel,
Commanding 15th Wing,
Royal Air Force.
In the Field.
11/7/18
JAC/JWC

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