hms "calypso" was a royal navy echo class ship-sloop. she was built at deptford between 1781 and 1783, launched on 27 september 1783 and first commissioned on 1 december 1783 for service off northern ireland and scotland. she served in the north sea, atlantic, and the west indies. "calypso" was sunk whilst acting as a convoy escort on 30 july 1803 after colliding with a west indiaman merchant ship during a violent storm.