OK, my "lost" comments: (By the way, Thank you, Clancy.)
Even on 52' lines, and a 6x2 prop, I can't get my LittleAxe to slow down beyond 5 sec. laps--so that .061 is cranking, what, 24-25k? Wow...
The Norvel .049s are another matter--I can get them to over 4 secs. on 42' lines on my smaller planes (LilGeo, etc.), maybe 4 sec. flat on 35'--that's still 20k or better? Sure seems high. It's only 15% nitro I'm running. I really need to find a tach sometime and see.
I know the Norvels are good--but, man!
Verrrrry interrrrresting...
--Ray