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| BRITISH EXPLOSIVE ORDNANCE |
| Part 7 - Chapter 4 |
| Navy Demolition Stores |
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Primers |
| C.E. Primers for Shipboard Use |
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Mks I and II – The Primer Mk I consists of a watertight cylindrical brass case, 2.25 in. x 1.18 in., containing 1 1/7 oz. of C.E. The Mk II is identical to the Mk I, except that as a wartime measure a paper wrapper has been substituted for the brass case. The Mk II is not waterproof, but may be used under water provided immersion does not exceed one hour. |
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Mk III – This primer is identical in dimensions and weight to the Mk II, but the detona-tor recess is of smaller diameter to fit the Briska Detonators No. 6 and the I.C.I. Gaseless Detonator No. 1. |
| Polar Blasting Gelatine Primers for Shore Demolition |
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These two primers are plastic; thus have no recess provided for the detonators. The primers are paper-wrapped in cartridges. The 2-oz. primer measures 2¼ in. x 1 1/8 in., while the 4-oz. primer measures 4 in. x 1¼ in. These primers are for shore demolitions only and are not for shipboard issue. |