Thanks, very good explaination about the different types of drag and their change with relative airspeed, but it was a little outside the box in relation to the question. Maybe I explained myself a little unclearly.
The initial question was:
How many % power is delivered via the drivebelt at full allowable throttle?
How many % power is delivered to the fan at full allowable throttle?
Of the total power (124hp)
Because we are operating with a fixed rpm, the power required (fixed centrifugal fan blades in enclosed shroud, hence fixed angle of attack) to drive the coolingfan is fixed (for a certain DA) regardless of collective position.
If any of you don`t know the answer, that`s fine cuz this is a robinson specific question, I should maybe asked Frank about.
Have a nice weekend
