Thread: Discussion Sundowner 50 fast setups
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Old Jul 08, 2012, 11:48 AM
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United States, CA, Calabasas
Joined Apr 2010
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I'm sure others will chime in, but just for kicks I ran your setup thru the castle creations flight calculator. On a fully charged batt, it predicted 71A, 10975 rpm, 1538W, and 125mph pitch speed. Seems like the rpm is spot on, but your current and power numbers are a lot higher than theirs. Wonder where the difference comes from...?
Seems like you ought to be hitting the high 90's low 100's with that prop and rpm, unless it's stalling when you test it on the ground, and slowing down a bit when it gets up to speed and 'bites' (am I thinking about that correctly?).
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Last edited by jgalexander; Jul 08, 2012 at 11:50 AM. Reason: Damn you autocorrect!
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