Originally Posted by
172510
As far as I know the largest 2 blade helicopter is the bell 505 and is not IFR certified.
Is there any 2 blade helicopter certified for IFR operation?
I wonder where you have that info from?! The largest 2 blade helicopter certified for IFR is the Bell 214ST. Below that you’ve got the 212. I think you can get some variants of the 206 IFR certified as well.