Agaricus bisporus & Up & Away& Rich Lee
Thank you for your contributions.
As I understand it correctly then, there is no standard "rule"
for helicopter pilots to wear 4 or 3 bars when in single pilot ops.
I always thought a 4 bar helicopter pilot worked in an ATPL position but by reading this thread you can also when you work as a commander/captain in single pilot ops.
Cheers