In days of old -
Fog - freezing to static items - hoar frost or rime ice.
Aircraft in the hangar.
Drive down the road - large private property - to verify where the fog ends in 8/8 blue.
About 1km.
Push helicopter (H500) from hangar - light engine - depart.
Fly legally at speed to avoid obstacles if required - Helicopter VFR ~ 40 knots.
Avoid flying higher than you would care to fall as auto is probably an issue.
Watch torque requirement rising and hoping it does not become an issue before exit from fog. Did happen on occasion.
Exit to 8/8 blue area and endure asymmetric ice shedding.
Hope the big bits don't hit anything important (i.e.T/R)
T/R was never an issue as heated by exhaust - not applicable to all types of course! If yours gets covered in black stuff you should be OK.
2p.