Piece
Catalogue reference: ADM 137/1890
This record is about the Secret packs of the Commander in Chief Grand Fleet Volume X: Pack 006: All sections:... dating from 1914-1918 in the series Admiralty: Historical Section: Records used for Official History, First World War. It is held at The National Archives, Kew.
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Secret packs of the Commander in Chief Grand Fleet
Volume X: Pack 006: All sections: Recognition signals.
Folio 1: Title page.
Folio 2: Explanatory note. During the period of the War, papers of a confidential nature in the office of the C-in-C Home Fleet were filed in Packs (numbered separately from the non-confidential records) in a Series 001 to 0042 inclusive. Copies of relevant telegrams were filed in these packs, but a complete set of all telegrams was also maintained. The secret packs were re-arranged by the Grand Fleet Secretarial staff in February 1919, when papers considered unimportant were removed and destroyed, and the remainder re-indexed. They were received in this form by the Historical Section in April 1920, and bound as received, in a series of volumes. The 1919 index will be found in the first volume (see ADM 137/1881) and extracts from these have been inserted in each succeeding volume. This volume is the 10th of the series.
Folio 3: Index of contents. Trade – The Blockade.
Folios 4-7: Blank.
Folio 8: Contents page.
Section I
Folios 9-305: Surface craft etc.
1.Recognition signal – proposed alteration.
2.Recognition signal for British merchant vessels.
3.“Umbrella pattern” daylight recognition signal.
4.Destroyer recognition signal.
5.Canvas sail to be fitted in light cruisers and destroyers.
6.Day and night recognition signals – special flag etc.
7.Torpedo craft – showing of lights when entering Scapa at night.
8.Night fireworks signals and VBS lights.
9.Night recognition signals – proposals of Commander HEF Aylmer, HMS Erin.
10.Destroyers’ night distinguishing mark – proposals of Captain Ley, HMS Canada.
11.Night recognition signals in TBD’s – Commander Ramsey, HMS Pasley; Lieutenant Commander Tippet, HMS Oracle.
12.Fixed fighting lights – proposals of Rear Admiral Douglas Nicholson.
13.Night recognition signals – proposals of Lieutenant Commander FJ Campbell-Allen, HMS Agincourt.
14.Tetrahedron prism system.
15.Recognition flags – possible compromise in action.
17.November 1917.
16.VBS lights – supply and trial.
17.Red white and blue identification marks on certain surface craft.
18.Flotilla leaders – special distinguishing marks (RAHF).
19.Enemy reports of British system of recognition signals – question of safety of private signal.
20.Reticence in publication of information re recognition signals.
21.Recognition signals – forms of compiling (1st BS).
Section 2
Folios 306-330: Aircraft.
1.Recognition marks on HM Ships to enable aircraft to identify them.
2.Recognition of signals for ships over sea.
3.Identification of aircraft by HM ships and submarines at sea.
4.Lamps for recognition light – fitting in aircraft working from Grand Fleet ships.
5.Aircraft – additional recognition signal.
Section III
Folios 331-451: Submarines.
1.Marks on submarines working off Norwegian coast
2.Introduction of water jet as recognition signal.
3.Signalling to submarines submerged.
4.Submarine recognition signals – advisability of introducing new methods.
5.Recognition of submarines by patrols.
6.Daylight fireworks – proposal by Lieutenant WS Chalmers, HMS Queen Elizabeth.
7.Very light cartridges.
8.Destroyers – meeting with friendly submarines (Mary Rose and “G10”).
9.Coloured snake recognition signals.
10.Inefficiency of water jet signal.
11.Recognition sail hoisted by enemy submarine on sighting “G8”.
12.Recognition signals between 10th submarine flotilla and “Hunting Force”.
13.Sinking of G8 by HMS Pasley.
14.Night recognition signals between submarines and surface.
15.Encounter between HMS Ursula and D6.
16.Grand Fleet memorandum on recognition signals and Admiralty proposals for modifications.
17.Recognition marks for submarines in North Sea.
18.VBS as night recognition signal by submarines – abolition.
19.Modifications to submarine recognition signals – proposals for conference.
20.Fitting of new apparatus for discharging recognition signal when submerged – priority for patrol submarines.
Section IV
Folios 452-507: Private signal.
1.Enemy attempts to imitate private signal. Abolition of interrogative sign recommended.
2.Re-introduction of fixed light recognition signals contained in suspended private signal instructions dated 1913.
3.Enemy attempts to imitate private signal on 24 January 1915.
4.Recognition signals for AP vessels.
5.Proof copies of private signal instructions 1915 for remarks.
6.Alterations in private signal.
7.Proposals by VABCF for more rapid methods of identification than private signal.
8.Possibility of failure in identification by private signal – suggestions by Captain Drax, HMS Dublin.
Section V
Folios 508-603: GFRS - Grand Fleet recognition signal lamp.
1.GFRS and lamp – instructions for use.
2.Model of telltale for use on forebridge showing GFRS in use.
3.GFRS lamp – remarks on.
4. Tracing of improved method for working GFRS lamp.
5. Copy of CIO 84/1918 – signalling lanterns – pattern 4299 - disposal
ADM 137
See the series level description for more information about this record.
Records of the Admiralty, Naval Forces, Royal Marines, Coastguard, and related bodies
Admiralty: Historical Section: Records used for Official History, First World War
Secret packs of the Commander in Chief Grand Fleet Volume X: Pack 006: All sections:...
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