Hi there,
I am flying a tecnam p92 light with 80 horsepowers.
My prop is a german two blade Helix (Carbon fibre)
I travel with 5000 r 180km/h wich is about. 97 knots.
With. 4800 r. 170km/h. Wich is about 91 knots
Greetings from the other side of the globe, Germany
Antonius