The position was originally established in 1917 on the Board of Admiralty. It essentially replaced the position of Chief of the Admiralty War Staff.[2]
In September 1917 the new post of Deputy First Sea Lord was created to meet the demand of wartime operational requirements. The Deputy Chief of the Naval Staff then reported to the Deputy First Sea Lord until 1919 when that post was abolished. The Deputy Chief of the Naval Staff then resumed his previous role and reported to the First Sea Lord until 1941. Duties as of 1917 included:[4][2][5]
Relieve the First Sea Lord of all the routine matters dealt with by sections under his immediate direction
Fleet Movements
All operations in the North Sea, the White Sea, the Baltic, and the Dover Area, except British coastal measures for the protection of trade
Offensive measures in the Mediterranean and abroad generally
The protection of trade in the North Sea, except the coastal trade on the East Coast of Great Britain. North Sea trade includes the Dutch trade, trade between Scandinavian countries and Great Britain, and Baltic trade, but not convoy from Lerwick, Southward
All questions relating to foreign stations, except protection of trade against submarine and mine attack
Policy of blockade and all questions relating thereto and to contraband of war
Organisation, movements and protection of troop transports and other vessels against attack by surface vessels; Atlantic convoys other than troop convoys being under the Assistant Chief of the Naval Staff
This remained in place until 1939. Duties after 1939 included:[5]
Operations of War: All large Questions of Naval Policy and Maritime Warfare
Fighting and Sea-going Efficiency of the Fleet and its Organisation
Distribution and Movements of all Ships in Commission and in Reserve
In 1941 the DCNS post was renamed Vice Chief of the Naval Staff; this continued until 1946. After the Second World War the title was changed back to DCNS, and continued until 1968.
In 2013 the office was brought back once more and the current Deputy Chief of the Naval Staff became both a member of the Admiralty Board and a member of the Navy Board of the Ministry of Defence.
Note: Post was vacant from 1969 to 2012; it was re-established in 2013. From 2013 to 2015 it was held by the Fleet Commander and from 2016 it was held by the Second Sea Lord
^Brown, [G.A. Titterton]. Vol. 1, September 1939 – October 1940 / with an introduction by David (2002). September 1939 – October 1940 ([New ed.]. ed.). London [u.a.]: Whitehall History Publ. in assoc. with Frank Cass. p. 3. ISBN9780714651798.{{cite book}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
^Hunter, Brian Farrell & Sandy (2002). Sixty years on : the fall of Singapore revisited. Singapore: Eastern Univ. Press. p. 146. ISBN9789812102027.
Primary source for this article is by Harley, Simon and Lovell, Tony, (2016) Deputy Chief of Naval Staff, The Dreadnought Project, http://dreadnoughtproject.org.
Rodger. N.A.M., (1979) The Admiralty (offices of state), T. Dalton, Lavenham, ISBN978-0900963940.
Naval Staff, Training and Staff Duties Division (1929). The Naval Staff of the Admiralty. Its Work and Development. B.R. 1845 (late C.B. 3013). Copy at The National Archives. ADM 234/434.
Mackie, Colin, (2010–2014), British Armed Services between 1860 and the present day — I Royal Navy – Senior Appointments, http://www.gulabin.com/.