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Design Fundamentals: Vehicle Weight:
kg 		  Vehicle Width:
mm 		  Vehicle Height:
mm		   Time to top speed:
s 		  Track Elevation:
m ASL		   Air Temp:
°C
Battery: (continuous / max. C)
    # seriell:
S 		  # parallel:
P 		  Capacity:
mAh		   Resistance:
Ohm		   Volt per Cell:
V		   Weight per Cell:
g
Controller:
 		Resistance:
Ohm 		Continuous Current:
A		 max. Current:
A		 Weight:
g		 Motor Weight:
g
Motor: Manufacturer - Type (Kv in rpm/V)
  		 Kv (w/o torque):
rpm/V 		   Resistance:
Ohm		   no-load Current:
A @ 		  Limit (up to 20s):
   # mag. Poles:
   Case length:
mm
Gear & Wheels: Type - Drive
Motor Pinion:
Teeth 		Spur Pinion:
Teeth		 Transmission:
:1 		Differential:
:1 		Wheel Diameter:
mm
Approx. Values:    Warning:
 		 

Battery:    Load:
C		    Voltage:
V		    Rated Voltage:
V		 min. Drive Time*:
min		 mixed Drive Time:
min		 Weight:
g
Motor
Acceleration to top Speed:		 avg. Current:
A		 avg Voltage:
V		 Revolutions:
rpm		    el. Power (In):
W		    mech. Power (out):
W		    Efficiency:
%
Optimal Efficiency: Current:
A		 Voltage:
V		 Revolutions:
rpm		 el. Power (In):
W		 mech. Power (out):
W		 Efficiency:
%
Motor
maintaining top Speed:		 Current:
A		 Voltage:
V		 Revolutions:
rpm		    el. Power (In):
W		    mech. Power (out):
W		    Efficiency:
%
Wheel / Gear: Rollout:
mm    =		  
inch		 Wheel:
rpm		 max. Speed:
km/h   =		  
mph		 Total Reduction:
:1
Entire Drive:   Weight:
g  (Batteriy + Contoller + Motor + 10%)		   P (in):
W		   P (wheel):
W		   Efficiency:
%
Motor Data: Motor Cooling:
 Power Scale:
0
1
2
3
4
5
6
7
8
9
0
20
40
60
80
100
el. Power [in 1W]
Efficiency [%]
max. Revolutions [in 100rpm]
wast Power [W]
Motor Case Temp. [°C]
Motor Case Temp. overlimit [°C]
(c) by s4a    V1.07

Ampere

Important Note:
 Before driving recheck the max. current! If your Current, el. Power or RPM are over the manufacturers limits your 
 motor, controller and/or battery may take damage!

  for printing use Landscape format
 * minimal Drive Time (85% discharge)
 ** Testdata with reduced accuracy

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Copyright (C) by Markus Müller, http://www.s4a.ch    email: ecalc[at]s4a.ch All rights reserved.
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V XC0.04, 20.9.10 / Data: 10.06.12
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