Which is more desirable a "B" gearbox 2.58 to 1 on a 503 Rotax turning a 3 blade prop
or a "C" gearbox 3 to 1 ratio turning higher pitch blades but the same 3 blade prop just at a slower RPM?
I think there are propeller efficiency losses at the blade speed goes up and considering the Gulls wide speed range compared to other ultralights, I would think a "C" box 3to1 slower turning prop would be more efficient
Am I missing something here????
Also it seems that most use approach speeds around 60 MPH, this seems high??? WHy such a high speed?
If you get too slow does the tail drag on touch down????thus the higher speed????
Inquiring mind whizzing away!!
Mark in Davenport