HMS Miranda (1879)
From Wikipedia, the free encyclopedia
_AWM_302218.jpeg) HMS Miranda c. 1884. | |
| History | |
|---|---|
 United Kingdom | |
| Name | HMS Miranda |
| Builder | Devonport Royal Dockyard |
| Cost | Hull £37,000, machinery £11,700[1] |
| Laid down | 8 July 1878 |
| Launched | 30 September 1879 |
| Commissioned | 22 July 1880 |
| Fate |
|
| General characteristics [1] | |
| Class & type | Doterel-class sloop |
| Displacement | 1,130 tons |
| Length | 170 ft (52 m) pp |
| Beam | 36 ft (11 m) |
| Draught | 15 ft 9 in (4.80 m) |
| Installed power | 1,020 ihp (760 kW) |
| Propulsion |
|
| Sail plan | Barque rigged |
| Speed | 11 knots (20 km/h) |
| Range | 1,480 nmi (2,740 km) at 10 kn (19 km/h) from 150 tons of coal |
| Complement | 140–150 |
| Armament |
|
HMS Miranda was a Doterel-class sloop of the Royal Navy, built at Devonport Dockyard and launched on 30 September 1879.[2]
This class of ship was part of the transition of royal navy ships from sail to steam propulsion. A single screw was mounted in a frame that was raised when the ship was under full sail, which reduced the drag effect of the screw. It's coal burning boilers were vented through a telescopic funnel, which was lowered when the ship was under sail, so as not to interfere with the sails;[3] hence the royal navy order ‘up funnel, down screw’.[4]
Propulsion
The Doterel class was designed by Nathaniel Barnaby as a development of William Henry White's 1874 Osprey-class sloop. The graceful clipper bow of the Ospreys was replaced by a vertical stem and the engines were more powerful. The hull was of composite construction, with wooden planks over an iron frame.[1]
Power was provided by three cylindrical boilers, which supplied steam at 60 pounds per square inch (410 kPa) to a two-cylinder horizontal compound-expansion steam engine driving a single 13-foot-1-inch (3.99 m) screw. This arrangement produced 1,020 indicated horsepower (760 kW) and a top speed of 11 knots (20 km/h).[1]
Armament
Ships of the class were armed with two 7-inch (90 cwt) muzzle-loading rifled guns on pivoting mounts, and four 64-pounder muzzle-loading rifled guns (two on pivoting mounts, and two broadside). Four machine guns and one light gun completed the weaponry.[1]
Sail plan
All the ships of the class were provided with a barque rig,[1] that is, square-rigged foremast and mainmast, and fore-and-aft sails only on the mizzen mast.
Crew
Miranda would have had a normal complement of 140–150 men.[1]
Construction
Miranda was ordered from Devonport Dockyard and laid down on 8 July 1878. She was launched on 30 September 1879 and was commissioned on 22 July 1880.[1]