Ok, so how about this. The only way to get a line onto the boat was to take a rope with a hook on the end, carefully lowered down onto the boat handrail, then held (by hand only) as the a/c moves slowly to the shore where the rope can then be attached to a land based hoist/winch etc, and the boat pulled clear? Possible? Only risk would be ropes hanging from helicopters and tail rotors and main blades spinning about.
Job done? A picture paints a thousand words, and on PPRuNe, usually starts a war!
R22 Heavy, I'd be interested to hear your technical description of Dynamic Rollover. ???