Range Typewriter

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The Range Typewriter was a flexible, manual means of plotting range cuts on the range plot of a Dreyer Fire Control Table, representing the data from as many as 9 rangefinders with distinct markings.

It supplanted the Brownrigg Keyboard which was used for this purpose through the Battle of Jutland.


See Also



  • Brooks, John (2005). Dreadnought Gunnery and the Battle of Jutland: The Question of Fire Control. Oxon: Routledge. ISBN 0714657026. (on Amazon.com and Amazon.co.uk).
  • Admiralty, Gunnery Branch (1918). Handbook of Captain F. C. Dreyer's Fire Control Tables, 1918. C.B. 1456. Copy No. 10 at Admiralty Library, Portsmouth, United Kingdom.