Penobscot Expedition
25 July – 15 August 1779, Penobscot Bay and River, Maine (then part of Massachusetts)
British victory; the American fleet destroyed
Massachusetts sent the largest American fleet of the war, the Continental frigate Warren with state navy ships, privateers and transports, to throw the British out of a new fort at Majabigwaduce (Castine). The troops landed but never stormed the fort, and Commodore Saltonstall would not attack the three sloops guarding it. After nearly three weeks a British squadron under Sir George Collier arrived from New York. The American ships fled up the Penobscot River, and their crews ran them ashore and burned them; two were captured. It was the worst defeat of an American fleet until Pearl Harbor. Saltonstall was dismissed, and the artillery commander, Paul Revere, was court-martialled and cleared.
Read more on WikipediaRoyal Navy
10 ships, none lost
Continental Navy and state navies
39 ships, 39 lost
Map
Penobscot Expedition sails July 1779
Collier relieves the Penobscot August 1779