Helimut, I agree it isn't quite clear if they've landed or not - possibly not the more I look at it....
I also agree that there's not one 'single' correct position from a heading perspective (and in this case I would turn 30-40 degrees left to give a direct access to the stair well,
but there is a general truth that the Touch Down/Position Marker should be used regardless of aircraft D value. A well known Pprune contributor produced this a few years ago:
http://www.helidecks.org/download%20...r%20V1%209.pdf
Sorry for thread drift (no pun intended)