ORIGINAL: AstroDad
ORIGINAL: MinnFlyer
You're probably not spinning THAT fast, but the point is, the engine LIKES spinning at 11,000 - 11,500. Prop it accordingly
OS advertizes the max power at 16,000 RPM with a practical range up to 17,000 RPM. I would be really quite dissapointed if their definition of "practical range" means you can rev that high, but will not last half the season if you do so.
The practical range claimed really isn't practical. It's like "miles per gallon" numbers for a car; they use numbers that inflate the product's performance as much as possible. If you're pulling a static RPM of 16,000 expect very short engine life. Remember, the prop unloads in the air. This means the RPM's in flight will be higher than your static reading.