RedactedNarrative: Vessel (V-1) was heading south down the Halifax River in a posted Idle speed no wake zone in Daytona Beach.  V-1 experienced mechanical failure causing the port engine to shut down and possibly lose steerage and turn the vessel to the left (port). ( See photos of computer screen from V-1) 
  
  The operator of V-1 attempted to gain control of V-1 by applying more throttle to the starboard engine and turn the steerage to the right. As the vessel was having engine problems he applied more throttle causing a large wake. The wake from V-1 carried over to Suntex Marina  and rock vessel (V-2) a 25' sailboat so hard that its mast and stay cables got wrapped up in a sailboat next to it causing the mast of V-2 to bend about 1/3 of the way up from the deck.(see photos).
  There was no one onboard V-2 and no injuries reported.