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Power Systems Talk about motors, ESC speed controllers, gear drives, propellers, power system simulators and all power system related topics

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Old 12-15-2012, 08:29 PM   #1
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Default Hacker motor question

I am building a Cessna 421 twin.Recomended motor is a .46.Looking at the Hacker motor chart I would say a A50-12s2 should be a .46.Looking for advice.Thanks Dean
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Old 12-15-2012, 09:33 PM   #2
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That would certainly be easily enough, probably an elemant of overkill if anything. A 46 glow moter will give maybe 600-750W at the prop. The A50-12s is rated for over 1200W input power which is about 1000W at the prop.

A bit of over-specing on the motor isn't a bad thing providing weight isn't excessive.
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Old 12-17-2012, 01:12 AM   #3
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Thanks for the help,Still not confident with this being a twin.I wish the motor manufactures would standerize there power numbers.I will probably go with slighly lower power motor.Thanks again
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Old 12-19-2012, 12:42 AM   #4
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Or use your left thumb judiciously.
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