Difference between revisions of "BL 16.25 inch Mk I naval gun"
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Latest revision as of 21:57, 1 July 2010
| Ordnance BL 16.25 inch gun Mk I | |
|---|---|
| 300px | |
| Type | Naval gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1888 - 190? |
| Used by | Royal Navy |
| Production history | |
| Manufacturer | Elswick Ordnance Company |
| Number built | 12 |
| Variants | no two guns were identical |
| Specifications | |
| Weight | 111 tons |
| Barrel length | 487.5 inches (12.38 m) bore (30 calibres) |
| | |
| Shell | 1,800 pounds (820 kg) Armour-piercing, Common, Shrapnel |
| Calibre | 16.25-inch (412.8 mm) |
| Elevation | -5° - 13° |
| Muzzle velocity | 2,087 feet per second (636 m/s)[1] |
| Maximum range | 12,000 yards (11,000 m)[2] |
The Elswick BL 16.25 inch naval gun was an early British superheavy breech-loading naval gun, commonly known as the 110-ton gun or 111-ton gun.
Service
Elswick had already supplied similar guns to Italy's Regia Marina and fitted in the Andrea Doria of 1885 and the Royal Navy required parity for its Mediterranean fleet. The adoption of this gun was influenced by the slow rate of production of the preferred new 13.5 inch guns : the Royal Navy had the option of delaying the completion of the new Admiral class battleships until sufficient 13.5 inch guns were available to equip them with four guns in two twin barbettes as planned; to use 12-inch guns, or to equip them with the new 16.25 inch guns.
The decision made was to install 16.25 inch guns in HMS Benbow in 1887 in single barbettes fore and aft, each gun substituting for two 13.5 inch guns. For the following HMS Victoria and HMS Sans Pareil the 16.25 inch guns were mounted in pairs in a single turret placed forward.
Weaknesses such as droop and cracking were discovered in the early design, and the many subsequent changes meant that none of the 12 guns built were identical, so the Mk I denomination was discontinued and the individual guns were referred to by their serial numbers. The great weight, low rate of fire and short life of less than 75 rounds meant that the guns were less than successful and were in fact never fired in action.
See also
- 12px Media related to BL 16.25 inch 110 ton naval gun at Wikimedia Commons
- List of naval guns
Ammunition
Notes
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External links
- "FIRING TRIAL OF THE 110½ TON B.L. ELSWICK GUN" in Scientific American supplement, No. 586, March 26, 1887. Transcribed by Project Gutenberg.
- NJM Campbell, BRITISH SUPER-HEAVY GUNS
- Tony DiGiulian, British 16.25"/30 (41.2 cm) Mark I
