The ''Sphinx''-class sailing

sixth rate In the rating system of the Royal Navy used to categorise sailing warships, a sixth-rate was the designation for small warships mounting between 20 and 28 carriage-mounted guns on a single deck, sometimes with smaller guns on the upper works and ...

s were a series of ten

post ship Post ship was a designation used in the Royal Navy during the second half of the 18th century and the Napoleonic Wars to describe a ship of the sixth rate (see rating system of the Royal Navy) that was smaller than a frigate (in practice, carry ...

s built to a 1773 design by John Williams. Although smaller than true frigates, post ships were often referred to incorrectly as frigates by sea officers, but not by the Admiralty or Navy Board. The first vessel in the class was launched in 1775, six more in 1776, two in 1777 and the last in 1781. The vessels of the class served in the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...

during the

American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was a major war of the American Revolution. Widely considered as the war that secured the independence of t ...

. Three of them - ''Sphinx'' and ''Ariel'' in September 1779, and ''Unicorn'' in September 1780 - were captured by the French Navy, but ''Sphinx'' was recovered in December 1779 and ''Unicorn'' in April 1781. Some survived to see service in the

French Revolutionary The French Revolution ( ) was a period of radical political and societal change in France that began with the Estates General of 1789 and ended with the formation of the French Consulate in November 1799. Many of its ideas are consider ...

and

Napoleonic Wars The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...

Ships in class

References

* Rif Winfield, ''British Warships in the Age of Sail, 1714-1792: Design, Construction, Careers and Fates'', Seaforth Publishing, Barnsley (2007). . {{Sphinx class post ship Ship classes