We are required to steam 20 degrees off the wind at about 8 to 12 knots so the helicopter can hover above us on our port side. If anything goes wrong the helicopter will swing over to the port side to ditch.
The parametric have to prepare themselves in our vessel then as the wire is lowered they connect and indicate that they are ready to be lifted. If all goes well they rise up from our deck BUT if there is a swell then we go up and down and the helicopter hovers above. The wire gets tight and the winch man has to let some go then when everyone is ready up they go.
The noise is ear splitting and the spray too great to see without goggles. The whole process is a good exercise and a warning not to get into a situation that you will need the high wire.
To watch the exercise and my trip down the coast click on youtube http://www.youtube.com/watch?v=zJ1-bwKfrt8