RedactedNarrative: Vessel s/v DUO, was struck by s/v PATRIOT. The collision severed all 3 starboard-side shrouds, bent 2 stanchions, severed the lifeline, and destroyed part of the teak rub rail. The PATRIOT was piloted by a single-handed sailor. The s/v DUO hailed PATRIOT on VHF channel 16 multiple times and he could not hear by yelling.  I tried to tell him I had serious damage and I wanted his contact and insurance information. After he determined that he had suffered no damage, he sailed away. As my mast was in imminent danger of falling, I returned to our dock at Liberty Harbor Marina in Morris Canal.