The hoist operator tells us where the site is with reference to the helicopter using arbitrary units that are based on rate of motion towards the spot (ie: "forward and left for 10.....5...4..3.2.1..steady forward and left"). Works really well.
I would agree with that.
Someone assist me, as I remember some of my H-3 Bretheren aircrewmen telling me they have a stick by the door for the hoist operator in which he can give limited cyclic commands over what the pilot holds to position the bird for hoisting, easing that situation itself somewhat.
Nick? Lu ?