RCU Forums - View Single Post - Confused about motor Amps and battery Amps
Old 07-26-2006, 08:30 AM
  #9  
shutterbug27mkii
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Default RE: Confused about motor Amps and battery Amps

Thanks aeajr!

That guide was so helpful that I decided to sign up at RCU and even referred you!

There are still a few questions however..

Well, when I look at the chart for the geared speed 400 I see that,
regardless of prop, at 7.4V I am not going to have enough voltage (
pressure) to push
13 amps into this motor. So the 2 cell lithium won't meet my performance
goal of 100 watts+ per pound using this gear box.
This is still a bit fuzzy. So do motors require a minimum voltage to pull certain amount of amps from the battery?
As for the chart, is this the same chart you provided earlier? If so, that was a dead link Are there other charts you can refer me to?

I've read about wing loading here and there. Does that come into play when determining a power system for your plane?

Thanks!
Eric