Estimate Electric Motor & Prop Combo
Last updated: Nov, 20 - 2007
  BATTERY :   - Select an Item from the Dropdown-List or select "Custom" to enter your own data -
     Series       Parallel
  Cell Capacity
   mAh 		  Volt per cell
   V 		  Cell Weight
   oz       g
  Cell Resistance
   ohms 		  Pack Voltage
   V 		  Pack Weight
   oz       g
  Electronic Speed Controller ESC :
   
   ESC Resistance
   ohm 		  Max Current
   A 		  ESC Weight
   oz       g
  MOTOR :
        
  Kv
   rpm/V 		  Io
   A     @ V
  Rm                                Kt
   ohms         InOz/A 		  Max Current
   A 		  Motor Weight
   oz      g
  PROP :
     No of Blades    :1 Gear Ratio
  Constants
   Kt       Kp 		  Diameter
  in      cm 		   Pitch
   in      cm
  Enter the Ambient Temperature and Altitude   ( or the Barometic Pressure ) :
  Temperature
   F       C 		  Altitude
   ft      m 		  Barometric Pressure
   inHg    mbar
- Click on screen after entered new values -
  MOTOR Results :
  Input Power
   W 		  Volts to Motor
   V		    Motor Static RPM
   rpm
  Output Power
   W 		   Motor Current
   A		   Static Efficiency
   %
PROP Results :
  Prop Static RPM
  rpm		    Static Pitch Speed
   mph    Km/h		    Static Thrust
   oz     g
  Prop Static Tip Speed
  MACH		    Approx Level Flight Speed
   mph    Km/h
  Full-throttle duration
   minutes		    Power System Weight +10%
   oz       g		   Static Thrust / Power System Weight
  
Copyright © 2004 - 2007, Adam one.
To plot Efficiency - Thermal Power - Output Power and RPM vs Current based on setup above :
                   Int. Explorer only
Efficiency (%)       Thermal Power (W)    Output Power (W) x        RPM x 1000
Disclaimer: The calculated values are only approximate.
The calculations are based on certain assumptions of battery, esc and propeller performance.
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