For Syd Adams:
The S76C++ model performs strangely when power is removed in level flight. From 120KIAS, if full down collective is selected, the aircrfat loses pitch control, usually in a 30 degrees+ nose down attitude. By contrast the BO105 model performs as a helicopter would, including requiring collective to manage rotor RPM.
Keep up the good work!
stu_edgar (at) yahoo.com.au.