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Old 09-21-2011, 06:55 PM
  #78  
Boboeing
 
Join Date: Sep 2011
Location: Doylestown, PA
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Default RE: .91 Four Stroke Readings

Saito 91
15% nitro
Fox RC long plug

Master Airscrew K series old style 14x6 peak RPM 9720
Master Airscrew K series new style 15x6 peak RPM 9300
Evolution15x6peak RPM 8300

Surprising that the drop in RPM from MA14x6 to MA15x6 was only about 400 RPM. A testament to the efficiency of the design. Also nice that the MA15x6 allows the engine to rev in its optimal power band between 8500 and 9500 RPM.