Mechanical Aid-to-Spotter

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Mechanical Aid-to-Spotter
Or possibly an Evershed or Elliott bearing transmitter.

The Mechanical Aid-to-Spotter was designed by Lieutenant W. D. Kilroy to ensure that the spotting officer was watching the same target as was being fired upon by his own ship.

Mark I

Main article

The need for these instruments was envisioned in early 1916. It seems likely that supply commenced in late 1916 at the earliest.[1] The first version was deployed in 22 of the earlier dreadnoughts and battlecruisers.[2]

Mark II

Main article

This device is detailed in Manual of Gunnery for HM Fleet, Volume III, 1920.[3] Supply of these to the latest capital ships commenced in the early months of 1919,[4] and by 1920, 22 had been equipped.[5]

Mark II*

Main article

This device is detailed in Manual of Gunnery for HM Fleet, Volume III, 1920.[6] Most often mounted in light cruisers from June 1918; an installation was generally a pair mounted on each side of the fore top.[7][8]

See Also

Footnotes

  1. The Technical History and Index, Vol. 3, Part 23. pp. 25.
  2. Manual of Gunnery for HM Fleet, Volume III, 1920, p. 34.
  3. Manual of Gunnery for HM Fleet, Volume III, 1920, pp. 35-37, Plates 45, 47, 49, 51.
  4. The Technical History and Index, Vol. 3, Part 23. pp. 26.
  5. Manual of Gunnery for HM Fleet, Volume III, 1920, p. 35.
  6. Manual of Gunnery for HM Fleet, Volume III, 1920, pp. 37-39, Plates 52-55, 59, 60.
  7. Manual of Gunnery for HM Fleet, Volume III, 1920, p. 37.
  8. The Technical History and Index, Vol. 3, Part 23. pp. 26.

Bibliography