Dreyer Table Mark I*: Difference between revisions
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The '''Mark I* Dreyer Table''' was a moderately improved version of the [[Mark I Dreyer Table|Mark I table]] | The '''Mark I* Dreyer Table''' was a moderately improved version of the [[Mark I Dreyer Table|Mark I table]]. It added a helm-free capability and a more comprehensive means of outputting [[Gun Range|gun range]]. Its only wartime service would have been in [[Monitor|monitors]]. | ||
[[File:DreyerTableMarkIStar_front.jpg|thumb|512px|'''Mark I* Dreyer Fire Control Table as it appeared by 1918, front''' ]] | [[File:DreyerTableMarkIStar_front.jpg|thumb|512px|'''Mark I* Dreyer Fire Control Table as it appeared by 1918, front''' ]] | ||
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* The Mark I*'s gun range was conveyed to a [[Range Master Transmitter]] on the T.S. bulkhead. | * The Mark I*'s gun range was conveyed to a [[Range Master Transmitter]] on the T.S. bulkhead. | ||
Its dimensions were almost the same as those of the Mark I table, except the worm shaft bringing in gyro-compass data to the dumaresq added almost 2 feet to the height: | |||
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==Deployment== | ==Deployment== | ||
Aside from 2 deployed in monitors, the Mark I* tables were primarily deployed to [[Hawkins Class Cruisers (1917)|''Hawkins'' class]] cruisers.<ref>''Handbook of Captain F.C. Dreyer's Fire Control Tables, 1918''. p. 3.</ref> | Aside from 2 deployed in monitors, the Mark I* tables were primarily deployed to [[Hawkins Class Cruisers (1917)|''Hawkins'' class]] cruisers completed after the war.<ref>''Handbook of Captain F.C. Dreyer's Fire Control Tables, 1918''. p. 3.</ref> | ||
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Revision as of 19:16, 22 August 2009
The Mark I* Dreyer Table was a moderately improved version of the Mark I table. It added a helm-free capability and a more comprehensive means of outputting gun range. Its only wartime service would have been in monitors.
Particulars
The Mark I* was very nearly identical to the Mark I table, with 2 exceptions:
- The Mark I* added a gyro-compass input to keep own heading updated on the dumaresq as was done first on the Mark III table.
- The Mark I*'s gun range was conveyed to a Range Master Transmitter on the T.S. bulkhead.
Its dimensions were almost the same as those of the Mark I table, except the worm shaft bringing in gyro-compass data to the dumaresq added almost 2 feet to the height:
| Overall Dimensions | |
| Width | 5 feet, 8 inches |
| Depth | 5 feet, 1.5 inches |
| Height of Range Rate Grid | 3 feet, 4 inches |
| Height of top of dumaresq | 5 feet, 9 inches |
Deployment
Aside from 2 deployed in monitors, the Mark I* tables were primarily deployed to Hawkins class cruisers completed after the war.[1]
| Ship using Mark I* table | Date equipped | Notes |
| Glatton | ??? | |
| Gorgon | ??? | |
| Cavendish | on completion[Inference] | Completed as aircraft carrier Vindictive, she retained her 7.5-in guns and so probably retained her Dreyer table. |
| Effingham | on completion[Inference] | |
| Frobisher | on completion[Inference] | |
| Hawkins | on completion[Inference] | |
| Raleigh | on completion[Inference] |
See Also
Footnotes
- ↑ Handbook of Captain F.C. Dreyer's Fire Control Tables, 1918. p. 3.
Bibliography
