Porcupine-class post ship

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Class overview
Name	Porcupine-class post ships
Operators	Royal Navy
Completed	10
Lost	6
General characteristics
Type	Sixth-rate post ship
Tons burthen	513 55⁄94 (bm; as designed)
Length	114 ft 3 in (34.8 m) (gundeck) 94 ft 3+1⁄2 in (28.7 m) (keel)
Beam	32 ft (9.8 m)
Depth of hold	10 ft 3 in (3.1 m)
Sail plan	Full-rigged ship
Complement	160
Armament	Upperdeck: 22 × 9-pounder guns QD 2 × 6-pounder guns

The Porcupine-class sailing sixth rates were a series of ten 24-gun post ships built to a 1776 design by John Williams, that served in the Royal Navy during the American War Of Independence. Some survived to serve again in the French Revolutionary and the Napoleonic Wars. The first two were launched in 1777. Three were launched in 1778, three more in 1779, and the last two in 1781.