Hello Testari:
A few months ago, I was out of Freeport, maybe 30 miles when we heard a guy on ch. 16 trying to call the Coast Guard for help. He was in a 22' boat, single engine and had spun his prop. We named him "Spun Prop" for the day. His VHF would not reach the c.g. so we offered to relay and sucessfully so. So "spun prop" w/one engine sat out there (5 adults aboard) wiating 4 hours for a Towboat US (Tempest Marine) to come tow them in. I was close to them, but never could spot them even though he claimed to have shot a couple of flares. SO, BE AWARE - EVEN IF SOMEONE IS WILLING TO HELP YOU, THEY MAY NOT BE ABLE TO FIND YOU--YOU ARE ON YOUR OWN OUT THERE. I would not ventue offshore w/ one engine.
Thanks, John