During the Seven Years' War she served both as a sloop and as a bomb vessel, and participated in naval operations off the coast of France and in the West Indies.

Lieutenant Thomas Elliot commissioned Granado in July 1742 as a sloop for the Channel and North Sea.

[1] After the outbreak of the Seven Years' War, between August and September 1756, Granado was at Woolwich, being fitted as a bomb vessel.

There, during the Battle of Saint Cast, the British rear-guard sustained significant losses in casualties and prisoners at the hands of the Irish Brigade,[4] among other French forces, despite covering fire from the frigates and bomb vessels.

Granado was among the many vessels of the naval squadron that shared in the proceeds of the capture on 18 August 1758 of the French privateer Guirland.

[5] Granado sailed for the Leeward Islands on 12 November 1758, and arrived in time for the unsuccessful invasion of Martinique (1759), on 19 January 1759.

[1] After her return to England, Granado Commander John Botterell commissioned her in February 1760, for the Channel, though in April she underwent fitting at Portsmouth as a sloop.

The "Principal Officers and Commissioners of His Majesty's Navy" first offered Granado for sale at Woolwich on 23 August.

Prince Frederick, which had been sailing in company with the expedition, left to go to Port Egmont, in the Falkland Islands, having provided further supplies for the other two ships.

Prince Frederick, Hanan, master, arrived back at the Downs on 18 May 1767, from South America.

She was coming from Jamaica but with weak winds and being short of water and provisions, Hannan chose to break the journey to London.

The last mention of Prince Frederick, Hannan, master, in Lloyd's List's ship arrival and departure data occurred in June 1772 when she returned to London from another voyage to Mogador and Grenada.

[9] New owners in 1775 apparently renamed Prince Frederick Prudence, and employed her as a whaler in the British northern whale fishery.

Lloyd's List reported on 8 July 1783 that the transports Prudence and Union had been lost near Tellicherry.

Prudence and Union were serving as ordnance store ships when a storm drove them from Calicut roads.