Injured Crewman;

All of what Doug said. Plus, if you are 600 miles out you probably have
more crew, get ready for a Helio Pick-up. Ready the dingy and lauch it.
Use a line long enough to let the Helio to come in without interference
from the mast. Pick the healthy crew man to go into the dingy with the
patient to handle the transfer. Wait for instructions from Helio but
try to be ready for different tranfer than you have in mind. Maintain
radio contact with CG and follow instructions.

Ole Thom