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Electric Motor calculator

Battery and Motor data obtained from Motocalc and used with permission.
For more information on Motocalc, please visit www.motocalc.com

Battery
Cell Type
 Number of cells
  
Cell Capacity
mAh		 Cell Resistance
ohms		 Cell Weight
oz
V per cell
volts		 Pack Weight
oz		 Pack Voltage
v
Speed Controller
Speed Controller Resistance
ohms
Motor
Motor
Kv
rpm/V		 Kt
InOz/A		 Rm
Io
A		 Recommended Max Current
A		 Weight
oz
Gearbox / Prop
Gear Ratio
Prop Type
 Prop Const
Prop Diameter
inches		 Prop Pitch
inches		 Prop Blades
Motor Results
Motor Amps
A		 Volts to motor
V		 Motor RPM
rpm
Watts In
W		 Watts Out
W		 Efficiency
%
Motor Max Efficiency
Current @ Max Eff
A		 Volts to motor @ Max Eff
V		 Watts In @ Max Eff
W
Watts Out @ Max Eff
W		 Max Eff
%
Prop Results
Eff Diameter
inches		 Prop RPM
rpm		 Static Thrust
oz
In-flight Thrust
oz		 Pitchspeed
mph
Full-throttle duration
minutes		 Approx Power System Weight
oz. Batteries + Motor + 10%
Copyright (C) 2000,2001 Chuck Gadd. All rights reserved.
See HTML Source for full and complete copyright notice.

Battery and Motor data obtained from Motocalc and used with permission.
For more information on Motocalc, please visit www.motocalc.com