Helicalc Instructions: Select the motor type, helicopter model, and battery type from the pull-down menus. Type in the pinion size (1-99) into the text box, then click the 'Calculate' button to see the results.
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*This tool is for estimation purposes only and may not exactly match real world values due to battery, motor, controller, and user setup variances, including manufacturing tolerances, density altitude, and gravitational force.
