INFO.......
FYI~
There is a operator in Oregon that transports the Columbia River Bar Pilots on and off the cargo ships entering and departing the Columbia River.
They operate day/night, VFR/IFR.
I can't speak for the present operator, but a prior operator held a waiver that allowed for FAR Part 133 part D / FAR Part 135 operations simultaneously. This allowed for the pick up of one Bar Pilot then the hoist lowering of another without making the hop back to the airport.
The contract utilizes a Agusta 109 Grand now, a 109 Power was used in the past.
There was a time when this operation was conducting over 1200 live hoists a year.
There was (is) a very knowledgeable Lead Pilot there, he knows the in's and out's of live load hoisting.