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Old 08-27-2014, 06:24 PM   #11 (permalink)
HF Scale Support
Posts: 2,958

Join Date: Jan 2010

So far, so good. The mechanics should pose very little trouble to get setup and working well. However, your calculations do not seem to be right for some reason. When I take your motor, gear, pinion, and cell count, and then plug it into one of the well used speed calculators, I get 1427rpm at 100% throttle. That will not last long and it will be slowly spinning down over the useful life of the battery. I would go to a 14t pinion and then govern the head speed at 92% which will give you a fairly constant 1422rpm for the useful life of the battery pack. Running wide open will not give you consistent performance throughout the flight. You are close. One other thought is to try out a slower head speed (1250 to 1350rpm) which will be easy with the smaller pinions you have at your disposal. Take care.

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