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2. Emrax 268 - Wikipedia

   en.wikipedia.org/wiki/Emrax_268

   The Emrax 268 is a brushless 250 volt design producing a peak of 230 kW (308 hp), 100 kW (134 hp) continuous, with an outrunner coil. It has a 98% efficiency. The low working rpm of the engine means that it can turn a propeller at efficient speeds without the need for a reduction drive.

3. Brushless DC electric motor - Wikipedia

   en.wikipedia.org/wiki/Brushless_DC_electric_motor

   A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows.

4. Power-to-weight ratio - Wikipedia

   en.wikipedia.org/wiki/Power-to-weight_ratio

   TP POWER TP100XL brushless DC motor [39] 7 kg 15 lb 75 kW 101 hp 9.0 kW/kg 5.5 hp/lb Electric vehicles: Emrax 268 brushless AC motor [40] 19.9 kg 44 lb 230 kW 310 hp 11.56 kW/kg 7.03 hp/lb Electric aircraft: Lucid Motors brushless DC motor [35] 31.4 kg 69 lb 500 kW 670 hp 15.8 kW/kg 9.68 hp/lb Electric vehicle H3X HPDM-250, direct drive [41]

5. Outrunner - Wikipedia

   en.wikipedia.org/wiki/Outrunner

   The stationary (stator) windings of an outrunner motor are excited by conventional DC brushless motor controllers. A direct current (switched on and off at high frequency for voltage modulation) is typically passed through three or more non-adjacent windings together, and the group so energized is alternated electronically based upon rotor position feedback.

6. IFMAR 1:10 Electric Off-Road World Championship - Wikipedia

   en.wikipedia.org/wiki/IFMAR_1:10_Electric_Off...

   It takes place biennially on odd years since 1987 in its current format but inaugurated in 1985 as a championship for Stock (stock handout motor) and Modified class (modified motors and seven cells) [1] It is considered by the radio-controlled modelling industry to be the most prestigious event in the calendar that a number of mainstream hobby ...

7. Inrunner - Wikipedia

   en.wikipedia.org/wiki/Inrunner

   A brushless, geared inrunner motor in a quadcopter. The term inrunner refers to an electric motor where the rotor (runner) is inside the stator. The term is in particular used for brushless motors to differentiate them from outrunners that have their rotor outside the stator. The vast majority of electric motors are inrunners. [citation needed]