Not coming from a SAR background, and for the enlightenment of others here like me, I'm curious to what extent the helicopter crew are involved in the initial decision making process to launch on a mission. Or are they told to go, and they just go? Presumably they are told of the nature of the injury of the patient. If they are told "not life threatening" is it open to the SAR crew to suggest, for example, as the safest option in the circumstances, for the Captain of the vessel to sail towards port and the helicopter will rendezvous with them at first light?