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Following program allows to calculate the necessary thrust, the propeller's efficency and the mass of the batteries.

Replace the values given for example by your data, and click on CALCULATE : you will obtain an order of magnitude of the values.

 

 

Efficiency Program

 

 

Max take off weight (MTOW): kg
Best glide ratio speed : km/h
 

Best glide :
Propeller's diameter : meters
Endurance wished : minutes

 

 

    RESULTS :

 

Thrust : Newton =   kg

Absorbed power by the propeller : Watt

Power : Watt

Propeller' efficicency : %

Batteries weight : Kg

Price of the batteries (May 2012) : € without taxes