The one thing I really didn't like is the sprung-to-idle collective - if you don't hold it ALL the time, and pay attention, you suddenly realise you're hanging in there on 40% power.
Shouldn't it have a governor?
Maybe you didn't switch it on?
AFM, Normal Procedures:
Engine governor failure practice
To simulate an engine governor failure in flight, proceed as follows :
1. Switch-off governor,
2. Adjust twist grip in order to maintain engine/rotor speed in the
middle of green arc,
3. Carry out a standard landing.