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Old Dec 05, 2012, 11:12 PM
Thermalin is offline
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I'm a pilot... 100 yrs to late
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USA, FL, Palm Harbor
Joined Jan 2005
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May be overloading the motor...generally from 11x5 you would go to 10x6...one in increase or decreas in diameter... with one decrease or increase in pitch. Drop diam... increase pitch... increase diam.. decrease pitch. WIth the much greater pitch.... the motor may be lagging a bit on throttle up working harder to get the prop up to speed.

And yes.. one must try different propellers for different performance levels. Hot summer air is much less dense than cold winter air and a prop change is generally required to account for that.
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