Submarine Sound Signalling
Submarine Sound Signalling was an experimental means of communication at sea trialled around 1911.
The building bearing the name "American Submarine Sound Signaling" sits prominently in Boston between North Station and the USS Constitution, where the editor had long wondered what it was referring to before discovering it was in his sphere of interest.
There is mention of this equipment in a Weekly Order, naming 14 ships whose names are to be struck from an Admiralty Letter of 16 July 1913.
A later order lists those ships containing the equipment, imploring them to contact the manufacturer so the machines can receive maintenance.
|Ships carrying Submarine Sound Signalling Equipment in 1913|
|King Edward VII||Monarch||Prince of Wales||Thunderer||Agamemnon|
In march, the Admiralty issued an order that the "Hervey Type" was henceforth to be called the "Hervey-Gardner Type".
- Annual Report of the Torpedo School, 1911. p. 108.
- Admiralty Weekly Order No. 612 of 31 Oct, 1913.
- Admiralty Weekly Order No. 644 of 14 Nov, 1913.
- Admiralty Weekly Order No. 926 of 6 Mar, 1914.
- H.M.S. Vernon. Annual Report of the Torpedo School, 1911, with Appendix (Wireless Telegraphy). Copy 15 at The National Archives. ADM 189/31.
- Poland, E. N. (1993). The Torpedomen: HMS Vernon's Story 1872-1986. London: Emsworth. ISBN 0-85937-396-7.