File:'Impregnable' (1810) RMG J1654.png

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Description
English: 'Impregnable' (1810)

Scale 1:8. Plan showing part of a section through the midship area of the gun deck (lower deck) illustrating the increase in the wale and planking thickness for 'Impregnable' (1810), a 90-gun Second Rate three-decker.

The plan is undated, but may relate to the alterations in 1825 when the ship underwent middling repairs at Plymouth Dockyard between February 1825 and April 1826. According to the Progress Book entry for 'Impregnable', this included the increase in the ship's breadth by adding chocks to the timbers and replanking in place of the usual method of doubling the planking.

NMM, Progress Book, volume 6, folio 22, states that 'Impregnable' was docked at Plymouth on 30 December 1822, and her copper removed. She was relaunched on 22 April 1826 having undergone a small to middling repair. An annotation dated 13 January 1825 states 'directions given to increase the breadth of this ship by bringing clocks on the timbers and placing the regular thickstuff planks over them instead of the usual method of giving more stability by doubling, this plan proposed by Rob't Seppings'.

'Impregnable' (1810)
Date circa January 1825
date QS:P571,+1825-01-00T00:00:00Z/10,P1480,Q5727902
Dimensions Sheet: 669 x 434 mm
Source/Photographer http://collections.rmg.co.uk/collections/objects/80086
Permission
(Reusing this file)

The original artefact or artwork has been assessed as public domain by age, and faithful reproductions of the two dimensional work are also public domain. No permission is required for reuse for any purpose.

The text of this image record has been derived from the Royal Museums Greenwich catalogue and image metadata. Individual data and facts such as date, author and title are not copyrightable, but reuse of longer descriptive text from the catalogue may not be considered fair use. Reuse of the text must be attributed to the "National Maritime Museum, Greenwich, London" and a Creative Commons CC-BY-NC-SA-3.0 license may apply if not rewritten. Refer to Royal Museums Greenwich copyright.
Identifier
InfoField
Admiralty Curator Number: 222
id number: ZAZ0295
Collection
InfoField
Ship Plans

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current12:45, 11 October 2017Thumbnail for version as of 12:45, 11 October 20176,902 × 10,620 (36.31 MB) (talk | contribs)Royal Museums Greenwich Ship Plans (1825), http://collections.rmg.co.uk/collections/objects/80086 #2383