Estimate DC Motor & Prop Combo check out the GUIDELINES to help you choose your Plane's Power System  -  Last updated: August, 21 - 2023 Disclaimer: The calculated values are only approximate. The calculations are based on assumptions of Battery, ESC & Prop performances, which may deviate from the real. Usual accuracy about +/-10%. However, it is strongly recommended to measure the actual max values before flight. Copyright © 2004 - 2023, rcplanes.online Calculate Wing Loading & Stall Speed :   Wing Area:    sq.in      sq.dm   Wingspan:    in      dm     Aircraft Weight:     ounces      grams Wing's Max CL: CL   WING LOADING:    oz/sq.ft      g/sq.dm      ASPECT RATIO:         STALL SPEED:    mph     Km/h CUBIC LOADING: oz/cu.ft. Remarks (if any): Airspeed [Km/h]       Estimated max level flight airspeed:        mph          Km/h CDoL Disclaimer: The calculated values are only approximate. You may change the value of CDoL to change the Zero-Lift Drag Curve. The calcualtor can be useful for comparing different Propellers. TO MAIN PAGE