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]
Design
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]
Propulsion
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]
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]
Service
She commenced service on the Australia Station in March 1881, under Captain R. S. Dawson[5][2] In May 1883, Commander Dyke Acland received command of the ship.[6][7] The Miranda visited a number of the Ellice Islands (present-day Tuvalu) in 1886.[8] Captain Rooke was in command when Miranda visited a number of the Gilbert Islands in 1886.
She left the Australia Station in 1886 and returned to England. By 1891, because of her slow speed and obsolete armament, she had been relegated to the Medway Reserve. She was surveyed as a potential training ship in 1892, but found unfit.[9]
Fate
She was sold to Reed of Portsmouth for breaking up on 24 September 1892.[1]
Bastock, John (1988), Ships on the Australia Station, Child & Associates Publishing Pty Ltd; Frenchs Forest, Australia. ISBN0-86777-348-0
Winfield, R.; Lyon, D. (2004). The Sail and Steam Navy List: All the Ships of the Royal Navy 1815–1889. London: Chatham Publishing. ISBN978-1-86176-032-6. OCLC52620555.