The French fleet arrived at Georgia on September 10th and moved to the Tybee Lighthouse at the mouth of the Savannah River. Fort Tybee had one 24-pounder and one 8-½ inch howitzer, but it was no match for the fleet. After firing their guns a few times they abandoned the fort. That night a French detachment occupied the fort. On the stormy night of September 11th 1,200 French troops landed unopposed at Beaulieu beach on Ossabaw Sound, south of Savannah.
Sherman's Calendar.... Too early for this work. To avoid long downloads, use option to "Save and view this PDF in Reader".
RevWar75listing 9/9/1779 Tybee Island. Shown as "American" (French) victory.