Currently operating BK117, marine pilot transfers in OZ
We have a limit of 3 degrees at night and 5 degrees during the day. Concidering all the information at hand - wind, swell etc, we can stretch the day limit a bit, but we do not budge on the 3 degrees at night - not so much because of aerodynamics, its more to do with visual cues on approach etc. We turn the ships onto a different course to reduce the rolling if needs be.