Dreyer Table Mark I*: Difference between revisions

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==See Also==
==See Also==
*[[Dreyer Table Mark I]]
*[[Mark I Dreyer Table]]
*[[Dreyer Fire Control Table]]
*[[Dreyer Fire Control Table]]


==Footnotes==
==Footnotes==
<small>
{{reflist}}
<references/>
</small>


==Bibliography==
==Bibliography==
<small>
{{refbegin}}
*{{BibUKDreyerTableHandbook1918}}
*{{BibUKDreyerTableHandbook1918}}
*{{BibBrooksDreadnoughtGunnery}}
*{{BibBrooksDreadnoughtGunnery}}
*{{BibBrooksThesis}}
*{{BibBrooksThesis}}
</small>
{{refend}}


[[Category:Dreyer Fire Control Table]]
[[Category:Dreyer Fire Control Table]]
[[Category:Fire Control]]
[[Category:Fire Control]]
[[Category:Shipboard Equipment]]
[[Category:Shipboard Equipment]]

Revision as of 17:28, 2 October 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. The few ships to receive it were completed too late to see wartime service.

Mark I* Dreyer Table as it may have appeared in 1918, front
It is unknown if any were actually configured with the Standard Bearing Plot depicted here.
Mark I* Dreyer Table c1918, schematic
This depicts it with a Standard Bearing Plot which may have been obsoleted.
Mark I* Dreyer Table as it might have been crewed in 1918
It is unknown if any were actually configured with the Standard Bearing Plot depicted here.

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] As the cruisers were all completed postwar and the monitors completed in the last weeks of the war, the Mark I* table is a historical footnote in World War I naval history.

As the ships using the Mark I* were completed so late, it is likely that they boasted the latest refinements from first installation, such as a Standard Bearing Plot or G.D.T. for their bearing side, and a range typewriter for plotting ranges[Inference].

Ship using Mark I* table Date equipped
Glatton ???
Gorgon ???
Cavendish on completion[Inference]
Effingham on completion[Inference]
Frobisher on completion[Inference]
Hawkins on completion[Inference]
Raleigh on completion[Inference]

See Also

Footnotes

  1. Handbook of Captain F.C. Dreyer's Fire Control Tables, 1918. p. 3.

Bibliography