RE: UMS Evolution Radial Care and Operation
Here's a picture of the AT-6 with EVO7-35 and collector ring. BTW - I've test flow APC 16 x8, 16 x 10, 17 x 8, 17 x 10, 17 x 12, 18 x18, and 18 x 10 on this airplane. The best combination of load, pitch speed and aircraft speed for this plane is the 17 x 10 prop. turns about 6,800 rpm and provides a nicely manageable realistic airplane speed with the climb power as what you would expect of an AT-6. Very realistic in flight and because of this I did very well at the Bob Evan's Fun Scale event in August with this combination.
Pete