Events

On This Day - January 2

1919	H27	Completed
1942	Thunderbolt (N25)	HMS Thunderbolt torpedoes and damages the Italian merchant Anna Capano off Argostoli, Keffalonia Island, Greece.
1945	Alcide (P415)	Laid Down

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Navigation and Data Transmission

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In the immediate post-war period, ships were fitted with basic gyro compasses (typically AP5005) plus a transmitting magnetic or gyro-magnetic compass (ATMC5/AGMC6) for emergencies. Vertical attitude reference data came from wholly separate stabilisers (Gyro Stabiliser Type 1-12). Radio navaids were limited to the early Decca sets (QM10) and MF DF (FM12), with widespread use of astro navigation (by hand-held sextant), plus a 1930's vintage ARL table.

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Events

On This Day - January 2

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