This is a CAD drawing of the 1758 Land Tortoise radeau (floating gun battery) shipwreck of Lake George. The vessel lies in 107 ft. of water and is the only known example of a radeau-class vessel to ever have been found and studied by underwater archaeologists. The seven-sided floating gun battery was discovered in 1990 by Bateaux Below, Inc. during a Klein side scan sonar survey led by Joseph W. Zarzynski. The word "radeau" is French for raft and it was a distinct class of warship. The unique vessel was pierced for seven cannons, four on the port side and three on the starboard. It has 26 sweep holes, 13 port and 13 starboard.