Porcupine class post ship

Class overview
Name: Porcupine-class post ships
Operators:  Royal Navy
Completed: 10
General characteristics
Type: Sixth-rate post ship
Tons burthen: 513 55/94 (as designed)
Length: 114 ft 3 in (34.82 m) (gundeck)
94 ft 3.5 in (28.740 m) (keel)
Beam: 32 ft (9.8 m)
Sail plan: Full-rigged ship
Complement: 160
Armament: UD: 22 × 9-pounder guns
QD 2 × 6-pounder guns

The Porcupine-class sailing sixth rates were a series of ten post ships built to a 1776 design by John Williams, which served in the Royal Navy during the American Revolutionary War, some surviving to see more service in the Napoleonic Wars. The 24-gun design was a development (and lengthening) of his 1773 design for the 20-gun Sphinx class. The first two were launched in 1777, three in 1778, three more in 1779, and the last two in 1781.

Ships in class

References