RedactedNarrative: Unit 1 was cruising down Beaufort River between Paris Island and Cat Island when a warning alarm sounded from the starboard engine.  The operator of Unit 1 noticed smoke coming from the engine exhaust and cut the motors off.  The operator of Unit 1 opened the engine hatch and a large amount of smoke came out.  The operator asked his wife to grab the fire extinguisher from below.  She noticed a large amount of flames coming out and the decided to jump overboard.  Unit 1 then drifted onto the middle marsh sandbar.  When Search & Rescue, DNR, & Parris Island Fire Department vessels arrived, the fire was unable to be extinguished.  Unit 1 was beached and remained on fire until roughly 6:00pm.