Propeller diameter [inch] = [cm] 
             Propeller pitch [inch] = [cm] 
                      U/min. [1/min]
                  Cell count 
                              4
                              5
                              6
                              7
                              8
                              9
                             10
                             11
                             12
                             
            Voltage per cell [V]   => [V] Pack voltage
        Estimated efficiency 
                              10
                              20
                              30
                              35
                              40
                              45
                              50
                              55
                              60
                              65
                              70
                              75
                              80
                              85
                              90
                              95
                             100

                             [%]


             Effective power [W]

        Required input power [W]
                     Current [A]

               Static thrust [N]    = [p]     = [oz]
                 Pitch Speed [m/s]  = [km/h]  = [mph]
            

Original page http://www.standschub.de/