HMS Isis (1819)
HMS Isis launched in 1819 was ordered in 1811 as a 50-gun two-decker of the fourth rate Salisbury class, but was redesigned while building, being lengthened on the stocks by 11 feet (3.4 m), and cut down by one deck to produce a spar-deck frigate, that is, to carry extra guns on the spar deck which linked the forecastle to the quarterdeck.
| _RMG_J4086.jpg.webp) Isis | |
| History | |
|---|---|
|  United Kingdom | |
| Ordered | 10 September 1811 (as a two-decker) | 
| Builder | Woolwich Dockyard. | 
| Laid down | February 1816 | 
| Launched | 5 October 1819 | 
| Completed | 3 September 1823 at Chatham Dockyard | 
| Fate | Coal depot at Sierra Leone in March 1861, then sold to purportedly be broken up there on 12 March 1867 at liquidation. | 
| General characteristics | |
| Tons burthen | 1,29288⁄94 (as redesigned) | 
| Length | 164 ft 0 in (49.99 m) | 
| Beam | 41 ft 11 in (12.78 m) | 
| Depth of hold | 13 ft 3 in (4.04 m) | 
| Propulsion | Sail | 
| Complement | 350 | 
| Armament | 
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It was then intended for her to have carried 58 guns as shown in the table, but this weapon 'fit' was amended on 3 June 1823 to complete her as a 50-gun frigate with an unarmed spar deck, and she was later reduced in 1830 to a 44-gun frigate carrying twenty-six 32-pounder guns on the upper deck, twelve more 32-pounder guns on the quarterdeck, and two 32-pounder guns on the forecastle together with two 8-inch shell guns.