Having worked for a medevac operator where most of the helicopters were
VFR only, my guess is this - they don't fly in IMC, let alone IMC with the
possibility of icing.

Of course, what's their definition of "IMC"?

Don't helicopters have a lower threshold for IMC than we fixed wing folks?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"