Electric Powered R/C Airplanes, Battery Packs, and accessories
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This calculator will be given regular updates. Please e-mail us with any comments you may have. Thank you.
- Motor Selection -
Motor:
Kv (rpm/volt):
Kt (InOz/amp):
Resistance:   
Current:          A
Weight:          
 
- Prop Selection -
Gear Ratio: 
Prop Diameter:
Prop Pitch:      
Prop Blades:   
Prop Type:
Prop Const:
 
- Battery Selection -
Cell Type:
# Cells:       
# Parallel:        
Cell Capacity:   mAh
Cell Weight :     oz
Volts:                V
Cell Resistance: ohms
- Speed Controller -
Controller:
 Resistance:
 Weight:
oz		 Continuous Amps:
Results:
Motor Amps:
 Watts In :
 Watts Out:
 Efficiency:
%		 V to motor:
 Motor RPM:
 Prop RPM:
Max
Efficiency:
%		 Current
@ M.E.:
 Watts In
@ M.E.:
 Watts Out
@ M.E.:
 V to motor
@ M.E.:
 Prop
Pitchspeed:
mph		 Prop Static
Thrust oz:
Pack Weight : oz     Batteries + Motor + 10% =
Full-throttle duration: minutes