This manual covers the operation and routine maintenance of the Hall Scott Defender, Model 2268 & 2269 engines. These were the standard engines in 63 ft. rescue boats and were also installed in some of the 104 foot boats as well. They had a reputation of being very rugged engines. The manual was provided courtesy of Randy Cunningham, owner of the 63' crash boat P-619. See Photos and Missions for pictures of his beautiful boat.