Difference between revisions of "Torpedo Control Disc"

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A '''Torpedo Control DIsc''' was a compact [[Torpedo Control|torpedo-control]] instrument helpful in solving many torpedo-related problems.
 
A '''Torpedo Control DIsc''' was a compact [[Torpedo Control|torpedo-control]] instrument helpful in solving many torpedo-related problems.
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 +
The term is probably a generic one, but the British used it refer to a specific series of instruments identified by Mark.
 +
 +
==Mark I==
 +
 +
==Mark II==
 +
 +
These discs were supplied by the end of 1917.  The table below indicates which were etched for the Extended Range "E.R." or the new "Medium" range speed setting for each torpedo.
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 +
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{| border="1"
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|-
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! colspan=6| '''Torpedo Control Discs Mark II Supplied by end of 1917'''<ref>''Annual Report of the Torpedo School, 1917'', pp. 194-195.</ref>
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|-
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|'''Stamp No.'''
 +
| '''for Torpedo Mark'''
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| '''Ship'''
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| '''Number Supplied'''
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| '''Medium?'''
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| '''E.R.?'''
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|-
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|T. 135
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| 21-in II &mdash; II**** E.R. 3
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| Destroyer Depot Ships
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| 1 for every 4 T.B.D.s attached
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| Yes
 +
| No
 +
|-
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|T. 136
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| 21-in II***** & IV
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| Destroyer Depot Ships
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| 1 for every 4 T.B.D.s attached
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| Yes
 +
| No
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|-
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|T. 132
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| 21-in II-II****
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| Destroyers
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| 2 per ship
 +
| Yes
 +
| No
 +
|-
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|T. 135
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| 21-in II-II**** E.R. 3
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| Destroyers
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| 2 per ship
 +
| Yes
 +
| No
 +
|-
 +
|T. 136
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| 21-in II***** & IV
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| Destroyers
 +
| 2 per ship
 +
| Yes
 +
| No
 +
|-
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|T. 138
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| 21-in I-I*
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| Destroyers
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| 2 per ship
 +
| Yes
 +
| No
 +
|-
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|T. 139
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| 18-in VII-VII****
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| Cruisers, Light Cruisers, and Destroyers
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| 2 per ship
 +
| Yes
 +
| No
 +
|-
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|T. 140
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| 18-in VII**-VIIIIII E.R. 3
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| Cruisers, Light Cruisers, and Destroyers
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| 2 per ship
 +
| No
 +
| Yes
 +
|-
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|T. 151
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| 21-in II-II**** E.R. 3
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| Light Cruisers
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| 2 per ship
 +
| Yes
 +
| Yes
 +
|-
 +
|T. 152
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| 21-in II***** & IV
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| Light Cruisers
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| 2 per ship
 +
| Yes
 +
| Yes
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|-
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|T. 139
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| 18-in VII-VII****
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| K class submarines
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| 1 per sub
 +
| Yes
 +
| No
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|}
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 +
==Mark III==
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 +
{| border="1"
 +
|-
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! colspan=6 |''''Torpedo Control Discs Mark III Supplied by end of 1917'''<ref>''Annual Report of the Torpedo School, 1917'', pp. 194-195.</ref>
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|-
 +
| '''Stamp No.'''
 +
| '''for Torpedo Mark'''
 +
| '''Ship'''
 +
| '''Number Supplied'''
 +
| '''Medium?'''
 +
| '''E.R.?'''
 +
|-
 +
|T. 141
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| 21-in II-II**** E.R. 3
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| Battleships and Battlecruisers
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| 2 per ship
 +
| Yes
 +
| Yes
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|-
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|T. 142
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| 21-in II***** & IV
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| Battleships and Battlecruisers
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| 2 per ship
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| Yes
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| Yes
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|-
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|T. 143
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| 21-in Weymouth
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| ''Agincourt'' and ''Erin''
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| 2 per ship
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| Yes
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| No
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|-
 +
|T. 144
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| 18-in VI**-VII***** E.R. 3
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| Battleships and Battlecruisers
 +
| 2 per ship
 +
| No
 +
| Yes
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|-
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|T. 145
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| 18-in VII** H - VI**** H
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| Battleships and Battlecruisers
 +
| 2 per ship
 +
| Yes
 +
| No
 +
|}
 +
  
 
{{TBC}} {{TONE}}
 
{{TBC}} {{TONE}}

Revision as of 15:41, 8 March 2011

A Torpedo Control DIsc was a compact torpedo-control instrument helpful in solving many torpedo-related problems.

The term is probably a generic one, but the British used it refer to a specific series of instruments identified by Mark.

Mark I

Mark II

These discs were supplied by the end of 1917. The table below indicates which were etched for the Extended Range "E.R." or the new "Medium" range speed setting for each torpedo.


Torpedo Control Discs Mark II Supplied by end of 1917[1]
Stamp No. for Torpedo Mark Ship Number Supplied Medium? E.R.?
T. 135 21-in II — II**** E.R. 3 Destroyer Depot Ships 1 for every 4 T.B.D.s attached Yes No
T. 136 21-in II***** & IV Destroyer Depot Ships 1 for every 4 T.B.D.s attached Yes No
T. 132 21-in II-II**** Destroyers 2 per ship Yes No
T. 135 21-in II-II**** E.R. 3 Destroyers 2 per ship Yes No
T. 136 21-in II***** & IV Destroyers 2 per ship Yes No
T. 138 21-in I-I* Destroyers 2 per ship Yes No
T. 139 18-in VII-VII**** Cruisers, Light Cruisers, and Destroyers 2 per ship Yes No
T. 140 18-in VII**-VIIIIII E.R. 3 Cruisers, Light Cruisers, and Destroyers 2 per ship No Yes
T. 151 21-in II-II**** E.R. 3 Light Cruisers 2 per ship Yes Yes
T. 152 21-in II***** & IV Light Cruisers 2 per ship Yes Yes
T. 139 18-in VII-VII**** K class submarines 1 per sub Yes No

Mark III

'Torpedo Control Discs Mark III Supplied by end of 1917[2]
Stamp No. for Torpedo Mark Ship Number Supplied Medium? E.R.?
T. 141 21-in II-II**** E.R. 3 Battleships and Battlecruisers 2 per ship Yes Yes
T. 142 21-in II***** & IV Battleships and Battlecruisers 2 per ship Yes Yes
T. 143 21-in Weymouth Agincourt and Erin 2 per ship Yes No
T. 144 18-in VI**-VII***** E.R. 3 Battleships and Battlecruisers 2 per ship No Yes
T. 145 18-in VII** H - VI**** H Battleships and Battlecruisers 2 per ship Yes No


[TO BE CONTINUED - TONE]TONY LOVELL, Editor.

See Also

Footnotes

  1. Annual Report of the Torpedo School, 1917, pp. 194-195.
  2. Annual Report of the Torpedo School, 1917, pp. 194-195.

Bibliography