Skully,
A simplified verson,
Its called "launching the turn" and is done by backing the helicopter up or moving forward (depending on the logs orientation to the landing!) to stand the log(s) up on end, as 407 correctly stated. Once the log is up and flying (and you are still directly over the log!) the deflection of the hill is used and you start your descent to the landing. This all happens in a few short seconds but is a very positive, smooth fluid motion using momentum to aid in the lift NOT translational lift as suggested. This allow torque, load scale, log and helo to all be under control!
Not the "clean and jerk" slingshotting method described. To back up and accelerate a log or any load still in contact with the ground, roll over the top and head for a spot is pure suicide, ripping the hook and pylon assembly out at the very least! He states to get translational lift to help lift the load....last I checked translation was at 15 to 20 mph. To back up and reach 15 mph then hope everything will become airborne is sheer stupidity and would certainly not be done with an aircraft I owned a bolt in!
This momentum and deflection are the reason you can lift a very heavy log a lot easier and with less power and pilot skill than required to move a standard weight drill... 😉 😉
My recommendation to the newer fellas is DO NOT even experiment with the two published techniques! Cause this is where the "dead horse" stories originate from.
Sounds like a good one 4 ho 7. 😉