Originally Posted by
EHFAI
Jim
Yes, the geared system will spool up faster than direct drive. Direct drive is sorta like driving a car in high gear, accels are smooth and easy to control but uphill speed may sag. Geared systems are similar to driving a car in 2nd gear, quick / powerful accels but harder to manage speed smoothly. The geared system in pattern takes more finesse on the throttle. From watching others fly contra systems I'd judge them to be somewhere in the middle.
I don't know. I agree that a higher gear ratio will give you more torque out and that is why the contra can throw larger props, but at a lower rpm. And yes that makes it feel more like the car in second gear. Maybe it is impossible to have a direct drive system and a geared system that have identical torque-speed curves and that is why we perceive the geared system has more torque. Where is Chad? How does the Plettenbuerg torque-speed curve compare to a geared Neu?
Jim O