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Old Oct 10, 2012, 02:57 PM
flylowfast is offline
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Joined Jun 2009
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Did some calculations with the online calculator at

http://www.ecalc.ch

Configuration:
-custom motor with Kv=2000, res=1.6Ohm, no-load: 0.34A at 7.94V
-LiPo: 150mA, 20/30C, 2s, res=0.15Ohm, voltage=3.7V
-controller: max 10A with res=0.015 Ohm
-propeller: custom, 0 deg., diam=5", pitch=3", blades=2, prop. const.=1.18, gear=1.0

Results:
-thrust=79.5g, current=1.53A, voltage=6.94, power=11.32, eff.=50.6%
For the same config. but pitch=1.5":
-thrust=54.1g, current=1.14A, voltage=7.06, power=8.44W, eff.=54.1%

The calculator seems to indicate a much higher static thrust than what I'm getting.
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Last edited by flylowfast; Oct 10, 2012 at 03:17 PM.
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