Difference between revisions of "Torpedo Director Pattern 2380"
From The Dreadnought Project
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[[File:UnknownRNTorpedoDirector.jpg|thumb|480px| An unidentified British torpedo director, possibly a Pattern 2380 altered for deflection firing.]] | [[File:UnknownRNTorpedoDirector.jpg|thumb|480px| An unidentified British torpedo director, possibly a Pattern 2380 altered for deflection firing.]] | ||
| − | The '''Torpedo Director Pattern 2380''' was a British [[Torpedo Director|torpedo director]] similar to the [[Torpedo Director Pattern 2390a|Pattern 2390a]], but larger and of improved construction.<ref>''Torpedo Drill Book, 1914'', p. 564.</ref> It was a 60 degree sector model designed especially for light cruisers.<ref>''Handbook of Torpedo Control, 1916'', p. 16, Plate 13.</ref> | + | The '''Torpedo Director Pattern 2380''' was a British [[Torpedo Director|torpedo director]] similar to the [[Torpedo Director Pattern 2390a|Pattern 2390a]], but larger and of improved construction.<ref>''Torpedo Drill Book, 1914'', p. 564.</ref> It was a 60 degree sector model designed especially for light cruisers.<ref>''Handbook of Torpedo Control, 1916'', p. 16, Plate 13.</ref> |
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| + | It was introduced for use at above water tubes in 1913, and had a lettered "enemy course indicator" disc around the enemy bar to permit this to be set in simple terms by control.<ref>''The Annual Report of the Torpedo School, 1913'', p. 28.</ref> | ||
By 1916 (at least), it had a [[Possible Shot Scale]] and [[Robinson Disc|inclination disc]].<ref>''Handbook of Torpedo Control, 1916'', p. 16.</ref> | By 1916 (at least), it had a [[Possible Shot Scale]] and [[Robinson Disc|inclination disc]].<ref>''Handbook of Torpedo Control, 1916'', p. 16.</ref> | ||
| − | The enemy bar pivot was much stronger than on the 2390a. | + | The enemy bar pivot was much stronger than on the 2390a. The lettered enemy course indicator disc originally provided to set enemy heading in relation to the torpedo bar was obsolete by or before 1916. |
The 2380a differed by having the lettered disc removed in favor of an inclination disc and a Radiomir fore sight.<ref>''Handbook of Torpedo Control, 1916'', p. 17. Contradiction of presence of inclination disc on 2380 is noted.</ref> | The 2380a differed by having the lettered disc removed in favor of an inclination disc and a Radiomir fore sight.<ref>''Handbook of Torpedo Control, 1916'', p. 17. Contradiction of presence of inclination disc on 2380 is noted.</ref> | ||
==Alterations== | ==Alterations== | ||
| − | [[File:HandbookTorpedoControlPlate13.jpg|thumb|400px| Pattern 2380 after alteration to a deflection sight.<ref>''Handbook of Torpedo Control, 1916'', Plate 13.</ref><br>Torpedo directors so converted to deflection sights were collectively designated Torpedo Deflection Sight Mark I. | + | [[File:HandbookTorpedoControlPlate13.jpg|thumb|400px| Pattern 2380 after alteration to a deflection sight.<ref>''Handbook of Torpedo Control, 1916'', Plate 13.</ref><br>Torpedo directors so converted to deflection sights were collectively designated Torpedo Deflection Sight Mark I. ]] |
By mid 1917, these were being altered to the deflection model, acquiring the new designation of [Torpedo Deflection Sight Mark I|T.D.S. Mark I]]. <ref>''Handbook of Torpedo Control, 1916'', p. 26, Plate 13.</ref> | By mid 1917, these were being altered to the deflection model, acquiring the new designation of [Torpedo Deflection Sight Mark I|T.D.S. Mark I]]. <ref>''Handbook of Torpedo Control, 1916'', p. 26, Plate 13.</ref> | ||
Revision as of 14:44, 14 April 2011
The Torpedo Director Pattern 2380 was a British torpedo director similar to the Pattern 2390a, but larger and of improved construction.[1] It was a 60 degree sector model designed especially for light cruisers.[2]
It was introduced for use at above water tubes in 1913, and had a lettered "enemy course indicator" disc around the enemy bar to permit this to be set in simple terms by control.[3]
By 1916 (at least), it had a Possible Shot Scale and inclination disc.[4]
The enemy bar pivot was much stronger than on the 2390a. The lettered enemy course indicator disc originally provided to set enemy heading in relation to the torpedo bar was obsolete by or before 1916.
The 2380a differed by having the lettered disc removed in favor of an inclination disc and a Radiomir fore sight.[5]
Contents
Alterations
Pattern 2380 after alteration to a deflection sight.[6]
Torpedo directors so converted to deflection sights were collectively designated Torpedo Deflection Sight Mark I.
Torpedo directors so converted to deflection sights were collectively designated Torpedo Deflection Sight Mark I.
By mid 1917, these were being altered to the deflection model, acquiring the new designation of [Torpedo Deflection Sight Mark I|T.D.S. Mark I]]. [7]
See Also
Footnotes
- ↑ Torpedo Drill Book, 1914, p. 564.
- ↑ Handbook of Torpedo Control, 1916, p. 16, Plate 13.
- ↑ The Annual Report of the Torpedo School, 1913, p. 28.
- ↑ Handbook of Torpedo Control, 1916, p. 16.
- ↑ Handbook of Torpedo Control, 1916, p. 17. Contradiction of presence of inclination disc on 2380 is noted.
- ↑ Handbook of Torpedo Control, 1916, Plate 13.
- ↑ Handbook of Torpedo Control, 1916, p. 26, Plate 13.
Bibliography
