RedactedNarrative: Vessel one, with four male individuals on board, launched from the Gandy boat ramp in Tampa.  
  
  While accelerating from the boat ramp, vessel one had an explosion which caused the vessel to catch on fire.  The four individuals jumped safely from the vessel and returned to shore. Vessel one burned to the waterline and sunk on the north end of Gandy Channel.
  
  They did not turn on a blower switch prior to starting the engine.
  -His friend, who was not on scene, just bought the boat the other day.