Officer of Quarters Range-Keeping Instrument

In April, 1913, the Royal Navy ordered a number of Officer of Quarters' Range-Keeping Instruments (Pattern 2657) for a number of vessels.

We have yet to discover any description on this instrument.

Deployment

By August, six of these were to go to each of Argyll, Devonshire, Roxburgh, Hampshire, Antrim, and Carnarvon, and two each to Hyacinth, Highflyer and Hermes.

In December 1913, 68 devices already given to armoured and light cruisers were to be reappropriated to capital ships as a temporary measure for local control purposes, pending the results of trials of the Dreyer Turret Control Table soon to take place in Queen Mary.

Ships surrendering Instruments in late 1913
Number Surrendered	Ships
6 each (60 in all)	four Drake class cruisers six Cressy class cruisers
2 each (8 in all)	light cruisers Lowestoft, Nottingham, Birmingham, Dublin

Ships given Re-Appropriated Instruments in late 1913
Number Supplied	Ships
4 each (16 in all)	four Iron Duke class battleships
2 each (50 in all)	four King George V class battleships four Orion class battleships the battleship Neptune two Colossus class battleships three St. Vincent class battleships three Bellerophon class battleships the battleship Dreadnought three Invincible class battlecruisers battlecruisers Princess Royal, Lion, New Zealand, Indefatigable
1 each (2 in all)	battlecruisers Tiger, Queen Mary

Bibliography

• Admiralty. Admiralty Weekly Orders, 1913. Unnumbered copy at The National Archives. ADM 182/4.