da Rock,

Right now I'm playing with pretty wide range of props on a OS .46AX hung on a Kaos 40 size ARF I intend on flying in a senior pattern event here the first of the month. I've tried everything from a 11X6, 11X7, 12X4, and now I'm trying a 12X5. I liked the climb thrust and slower speed of the 12X4, not that the 11X7 doesn't perform well, just a little quick between maneuvers and turnarounds w/still plenty of vertical. What I didn't like about the 12X4 was the braking when the power is reduced, the airplane just stops making landing approaches a bit more critical for good landing scores. The Kaos doesn't penetrate all that well with its wing design. We'll see if the 12X5 is a good compromise. Even with the lower pitches there is plenty of speed still keeping the rpm somewhere around 12K on the tach on a static runup.

wellss,

Wasn't sure what da Rock was looking to explain as there is a definite difference between fixed and constant speed performance. Nice explanation