What's the slowest speed permitted in IAS mode?
My experience when doing the familiarization of the Super Puma (I was with Transport Canada at the time) was that even in 4 axis mode, the IAS hold couldn't maintain 40 knots, and so a limit (for the Canadian flight manual anyway) of 50 knots was imposed.
Got lots of calls after that about 'Why is the Canadian limit 50 KIAS when the French manual says 40 KIAS?'
Just wonder if the three axis mode was any good at holding 40 knots? If that was the commanded value…