Prop and engines
07-06-2016, 12:25 PM
#2
Wow, that's a tall order.
I usually size between 100 - 150 watts/lb of electrical power (mechanical power at prop will be less), so with a 12 pound plane you will need a minimum of about 1200 watts required. At 3S (11.1 volts), that would require over 108 amps of current (1200 / 8 = 108.1). That's way too high and I doubt that you will find a motor rated for that much current (or power) at 11.1 volts.
You really need at least a 6S and maybe even a 8S battery to make this work.
I usually size between 100 - 150 watts/lb of electrical power (mechanical power at prop will be less), so with a 12 pound plane you will need a minimum of about 1200 watts required. At 3S (11.1 volts), that would require over 108 amps of current (1200 / 8 = 108.1). That's way too high and I doubt that you will find a motor rated for that much current (or power) at 11.1 volts.
You really need at least a 6S and maybe even a 8S battery to make this work.
