Postby Tony Collins 1073 » May 21st, 2018, 2:41 pm
Neil, this taken from the manual and elsewhere may help you.
The Evolution 80GX has been designed to generate maximum power
at 6200–6600 rpm, according to the type of exhaust used. If you
wish to utilize the maximum power output, choose a propeller which
will allow the engine to reach these revolutions, or slightly lower
revolutions. (The engine will unload in the air, depending on the
aircraft speed and propeller selected.)
Choose your propeller according to the chart and to achieve
approximately 6400 rpm on the ground for best performance and
the lowest noise signature
80 GX Two Blade.....26x10. 26x12. 27x10.
Apparently swings a 2-blade Mejzlik 27 x 10 at 6200 rpm
Steve, people come on this forum for help, not to have the p... taken out of them.