Clear Range Indicator: Difference between revisions
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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> | ||
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These were supplied to "all modern ships" by the end of 1917. One was apparently secured to the holding down ring of the [[Torpedo Deflection Sight Mark II]], and a third type was added to the spindle of the [[Torpedo Director Sight Mark III]], an arrangement that was foundn to be more compact and convenient.<ref>''Annual Report of the Torpedo School, 1917'', p. 195.</ref> | These were supplied to "all modern ships" by the end of 1917. One was apparently secured to the holding down ring of the [[Torpedo Deflection Sight Mark II]], and a third type was added to the spindle of the [[Torpedo Director Sight Mark III]], an arrangement that was foundn to be more compact and convenient.<ref>''Annual Report of the Torpedo School, 1917'', p. 195.</ref> | ||
==Mark I== | |||
This original model was for use in conning towers.<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | |||
==Mark II== | |||
This model was for use with [[Torpedo Deflection Sight Mark II]].<ref>''Annual Report of the Torpedo School, 1918'', p. 165.</ref> | |||
==Mark III== | |||
[[File:ARTS1918Plate108.jpg|thumb|400px| '''Clear Range Indicator Mark III'''<ref>''Annual Report of the Torpedo School, 1918'', Plate 108.</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== | |||
[[File:ARTS1918Plate117.jpg|thumb|400px| '''Clear Range Indicator Mark IV'''<ref>''Annual Report of the Torpedo School, 1918'', Plate 117.</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." | |||
* the gyro bearings corresponding to those limits | |||
It is described<ref>''Annual Report of the Torpedo School, 1918'', p. 166.</ref> and its use outlined<ref>''Annual Report of the Torpedo School, 1918'', p. 192.</ref> in the ''Annual Report of the Torpedo School, 1918''. | |||
==See Also== | ==See Also== | ||
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*{{BibUKHandbookOfTorpedoControl1916}} | *{{BibUKHandbookOfTorpedoControl1916}} | ||
*{{BibUKARTS1917}} | *{{BibUKARTS1917}} | ||
*{{BibUKARTS1918}} | |||
{{refend}} | {{refend}} | ||
Revision as of 20:24, 20 March 2011
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[1]
These were supplied to "all modern ships" by the end of 1917. One was apparently secured to the holding down ring of the Torpedo Deflection Sight Mark II, and a third type was added to the spindle of the Torpedo Director Sight Mark III, an arrangement that was foundn to be more compact and convenient.[2]
Mark I
This original model was for use in conning towers.[3]
Mark II
This model was for use with Torpedo Deflection Sight Mark II.[4]
Mark III
Clear Range Indicator Mark III[5]
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.[6]
Mark IV
Clear Range Indicator Mark IV[7]
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, 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, Plate 108.
- ↑ Annual Report of the Torpedo School, 1918, p. 165.
- ↑ Annual Report of the Torpedo School, 1918, Plate 117.
- ↑ 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
