Difference between revisions of "Clear Range Indicator"
From The Dreadnought Project
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| + | [[File:ARTS1918Plate108.jpg|thumb|300px| '''Clear Range Indicator Mark III'''<ref>''Annual Report of the Torpedo School, 1918'', Plate 108.</ref>]] | ||
| + | [[File:ARTS1918Plate117.jpg|thumb|300px| '''Clear Range Indicator Mark IV'''<ref>''Annual Report of the Torpedo School, 1918'', Plate 117.</ref>]] | ||
The '''Clear Range Indicator''' was a British [[Torpedo Control|torpedo-control]] instrument developed in a series of Marks. | The '''Clear Range Indicator''' was a British [[Torpedo Control|torpedo-control]] instrument developed in a series of Marks. | ||
Two designs were discussed in the ''Annual Report of the Torpedo School, 1916''<ref>''Annual Report of the Torpedo School, 1917'', p. 195 cites it on p. 27 of the 1916 edition, no copy of which has been found.</ref> | Two designs were discussed in the ''Annual Report of the Torpedo School, 1916''<ref>''Annual Report of the Torpedo School, 1917'', p. 195 cites it on p. 27 of the 1916 edition, no copy of which has been found.</ref> | ||
| − | These were supplied to "all modern ships" by the end of 1917. One was apparently | + | These were supplied to "all modern ships" by the end of 1917. One was apparently fitted to the holding down ring of the [[Torpedo Deflection Sight Mark II]], and a third type was added to the spindle of the [[Torpedo Deflection Sight Sight Mark III|T.D.S. Mark III]], an arrangement that was found to be more compact and convenient.<ref>''Annual Report of the Torpedo School, 1917'', p. 195.</ref> Even the Spartan [[Torpedo Deflection Sight Sight Mark VI|T.D.S. Mark VI]] had one. |
==Mark I== | ==Mark I== | ||
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==Mark III== | ==Mark III== | ||
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This model was for use with [[Torpedo Deflection Sight Mark III]] and could also help determine how much of a course alteration would be required to bring the sights on.<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | This model was for use with [[Torpedo Deflection Sight Mark III]] and could also help determine how much of a course alteration would be required to bring the sights on.<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | ||
==Mark IV== | ==Mark IV== | ||
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This was a new model was for use in conning towers with restricted arcs. It could serve the functions of the previous Marks but also:<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | This was a new model was for use in conning towers with restricted arcs. It could serve the functions of the previous Marks but also:<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | ||
* show "the arcs between which torpedoes can be fired in connection with the restricted arcs of 70 degrees to 110 degrees." | * show "the arcs between which torpedoes can be fired in connection with the restricted arcs of 70 degrees to 110 degrees." | ||
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*{{BibUKARTS1918}} | *{{BibUKARTS1918}} | ||
{{refend}} | {{refend}} | ||
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[[Category:Torpedo Control]] | [[Category:Torpedo Control]] | ||
[[Category:Shipboard Equipment]] | [[Category:Shipboard Equipment]] | ||
Revision as of 15:32, 2 April 2011
Clear Range Indicator Mark III[1]
Clear Range Indicator Mark IV[2]
The Clear Range Indicator was a British torpedo-control instrument developed in a series of Marks.
Two designs were discussed in the Annual Report of the Torpedo School, 1916[3]
These were supplied to "all modern ships" by the end of 1917. One was apparently fitted to the holding down ring of the Torpedo Deflection Sight Mark II, and a third type was added to the spindle of the T.D.S. Mark III, an arrangement that was found to be more compact and convenient.[4] Even the Spartan T.D.S. Mark VI had one.
Mark I
This original model was for use in conning towers.[5]
Mark II
This model was for use with Torpedo Deflection Sight Mark II.[6]
Mark III
This model was for use with Torpedo Deflection Sight Mark III and could also help determine how much of a course alteration would be required to bring the sights on.[7]
Mark IV
This was a new model was for use in conning towers with restricted arcs. It could serve the functions of the previous Marks but also:[8]
- show "the arcs between which torpedoes can be fired in connection with the restricted arcs of 70 degrees to 110 degrees."
- the gyro bearings corresponding to those limits
It is described[9] and its use outlined[10] in the Annual Report of the Torpedo School, 1918.
See Also
Footnotes
- ↑ Annual Report of the Torpedo School, 1918, Plate 108.
- ↑ Annual Report of the Torpedo School, 1918, Plate 117.
- ↑ Annual Report of the Torpedo School, 1917, p. 195 cites it on p. 27 of the 1916 edition, no copy of which has been found.
- ↑ Annual Report of the Torpedo School, 1917, p. 195.
- ↑ Annual Report of the Torpedo School, 1918, p. 165.
- ↑ Annual Report of the Torpedo School, 1918, p. 165.
- ↑ Annual Report of the Torpedo School, 1918, p. 165.
- ↑ Annual Report of the Torpedo School, 1918, p. 165.
- ↑ Annual Report of the Torpedo School, 1918, p. 166.
- ↑ Annual Report of the Torpedo School, 1918, p. 192.
Bibliography
