RedactedNarrative: Heard vessel in distress hailing over vhf channel 16, taking on water.  I was already underway on my patrol vessel in Harpswell Sound and responded to the area of Green Ledges in the New Meadows River. 
  Found vessel taking on water.  Boarded vessel and found two kids wearing PFDs and two adults not  wearing PFDs.  Operator A and B had successfully plugged two holes in the hull and slowed the incoming water down enough so that the bilge pumps could keep up. Vessel had lost control and power to one of the two through hull props. Operator A of Vessel A did not have proper look out for bottom hazards and struck a ledge.