RedactedNarrative: Operator attempted to tie off her sailboat when she left the engine in gear, causing the sailboat to drift. In an attempt to tie the boat off during this, the operator got her fingers caught in the knot she had made. The sailboat kept moving and tightened the knot causing her fingers to be severed. She was transported to the hospital. Her boat was later located by the USCG. She was not wearing a life jacket and alcohol was not a factor.