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<html>class Calc LIPO_VOLTS = 3.7 LIIO_VOLTS = 3.6 LIFE_VOLTS = 3.2 R = 0.00003728226 def self.calc!(store) type_lipo = store.get "batt-type-lipo" cell_volts = case type_lipo when 0 then LIIO_VOLTS when 1 then LIPO_VOLTS when 2 then LIFE_VOLTS end batt_cells = store.get "batt-cells" batt_volts = (batt_cells * cell_volts).round 1 store.set "out-battery-volts", batt_volts motor_kv = store.get "motor-kv" raw_efficiency = store.get "system-efficiency" efficiency = raw_efficiency / 100 motor_rpm = motor_kv * batt_volts motor_rpm_weighted = motor_rpm * efficiency store.set "out-motor-rpm", motor_rpm store.set "out-motor-rpm-weighted", motor_rpm_weighted motor_teeth = store.get "motor-pulley-teeth" wheel_teeth = store.get "wheel-pulley-teeth" gear_ratio = motor_teeth / wheel_teeth gear_ratio_out = (wheel_teeth / motor_teeth).round(2) store.set "out-gear-ratio", gear_ratio_out wheel_size = store.get "wheel-size" top_speed_mph = motor_rpm * wheel_size * Math::PI * R * gear_ratio top_speed_mph_w = top_speed_mph * efficiency store.set "out-top-speed", top_speed_mph store.set "out-top-speed-weighted", top_speed_mph_w erpm = batt_volts * motor_kv * 7 store.set "out-motor-erpm", erpm end end</html>