VP/Constant speed prop on a motor glider
A syndicate at my club have just changed from an RF5b with a manual change 3 position prop to one with an electrical VP prop.
The former had a lever to change to change pitch, RPM varying with the throttle.
On the new type, RPM is selected by a rotary knob, and the boost gauge is set to match the RPM with the throttle.
Question I have been asked is do they require a log book sign off for a constant speed prop?
I know the CAA do not consider the RF5b to be a complex type, thats about the limit of my knowledge.
Cheers
Ian K