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File:12pdrCommonLydditeMkIVShellDiagram.jpg

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Summary

Description

Diagram of British QF 12 pounder Common Lyddite shell Mk IV (3 inch) with internal night tracer, 1914. For both Naval and Land use.
Mark IV was the latest 12 pounder explosive shell in 1915. It had increased thickness in the base to take the internal night tracer, hence less space was available for explosive than for previous Mks of the shell.
The tracer was for anti-aircraft use in the 12 pounder 12 cwt gun.
Takes G.S. 1 inch fuze. The drawing shows the fuze hole with a plug screwed into it, which was the usual safety practice of storage to keep the fuze hole unexposed and clean until required for firing. The plug was then removed and the fuze was screwed in.
Weight filled and fuzed : 12 lb 8 oz.
Length : 8.92 inches.
Diameter : 2.98 inches (shell); 3.095 inches (driving band).
Filling : 12 oz 3 drams Lyddite, 5 drams TNT exploder. Total 12 1/2 oz.
For use in the following guns :-

Date 1915. Facsimile reprint published by Imperial War Museum and Naval & Military Press, 2003.
Source Plate XXXVII & Pages 209, 213 in "Treatise on Ammunition" 10th Edition, 1915.
Author War Office, UK.
Permission
(Reusing this file)
Crown Copyright expired (50 Years).

Licensing

Public domain
This work created by the United Kingdom Government is in the public domain.

This is because it is one of the following:

  1. It is a photograph taken prior to 1 June 1957; or
  2. It was published prior to 1974; or
  3. It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1974.

HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref: HMSO Email Reply)
More information.

See also Copyright and Crown copyright artistic works.

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current10:09, 12 January 2008Thumbnail for version as of 10:09, 12 January 2008688 × 1,000 (70 KB)Rcbutcher((Information |Description=Diagram of British 12 pounder Common Lyddite shell Mk IV (3 inch), 1915. <br>Mark IV was the latest 12 pounder explosive shell in 1915. It had increased thickness in the base to take the night tracer, hence less space was availa

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File:12pdrCommonLydditeMkIVShellDiagram.jpg
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