Freerchobby FRC 12090

The Freerchobby FRC 12090 is a 200cc outrunner brushless DC motor for giant scale RC airplanes. Built with permanent magnets, a 50mm stator and a 10mm shaft, it weighs 2900 g and has a continuous current rating of 120A.

FreerchobbyMotors, ESCs & propellers

Weight: 2.9 kg
Dimensions: 120 X 110

Product overview

The Freerchobby FRC 12090 is a 200cc outrunner brushless DC motor for giant scale RC airplanes. Its permanent magnet construction uses brushless commutation, with a 50mm stator and a 10mm shaft. The motor weighs 2900 g and has dimensions of 120 × 110 excluding the shaft. Electrical and mechanical specifications include a continuous current of 120A, a speed of 7500 RPM, maximum torque of 25Nm and maximum power of 15kw–18kw.

At 50% throttle and 80.68 V, the motor draws 27.9 A and turns at 2877.5 RPM, producing 5.9 N.M of torque with 1774.7 W of motor output power. Motor efficiency at this operating point is 78.90%. At 85% throttle and 79.24 V, current reaches 125.4 A, speed is 4678.6 RPM and output power is 8410.8 W, with 84.70% motor efficiency. These operating points pair each output figure with its throttle setting and voltage.

Motors & ESCs

Specifications

Freerchobby FRC 12090 specifications
Specification	Value & conditions
Model	Free RC Hobby FRC 12090
Product type and application	200cc outrunner brushless DC motor for giant scale RC airplane
Continuous current	120A
Efficiency class	IE3
Speed	7500 RPM
Construction	Permanent magnet construction; brushless commutation
Protection feature	Explosion-proof
Maximum torque	25Nm
Maximum power	15kw-18kw
Dimensions	120 X 110Without shaft.
Stator	50mm
Weight	2900 g
Shaft	10mm
Performance at 20% throttle	Current: 2.5 A; speed: 1147.3 RPM; force: 1.9 KG; torque: 0.9 N.M; motor output power: 102.7 W; system input power: 204 W; motor efficiency: 53.30%; propeller force efficiency: 18.44 G/W 20% throttle; 81.05 V.
Performance at 25% throttle	Current: 5.2 A; speed: 1340.8 RPM; force: 2.7 KG; torque: 1.9 N.M; motor output power: 265.2 W; system input power: 423.7 W; motor efficiency: 63.30%; propeller force efficiency: 10.326 G/W 25% throttle; 81.01 V.
Performance at 30% throttle	Current: 7.7 A; speed: 1770.4 RPM; force: 4.9 KG; torque: 2.1 N.M; motor output power: 385.3 W; system input power: 620.9 W; motor efficiency: 62.40%; propeller force efficiency: 12.788 G/W 30% throttle; 80.98 V.
Performance at 35% throttle	Current: 10.6 A; speed: 2022 RPM; force: 6.3 KG; torque: 2.7 N.M; motor output power: 561.5 W; system input power: 856.2 W; motor efficiency: 65.70%; propeller force efficiency: 11.161 G/W 35% throttle; 80.92 V.
Performance at 40% throttle	Current: 14.1 A; speed: 2288.6 RPM; force: 7.9 KG; torque: 3.4 N.M; motor output power: 804.4 W; system input power: 1142 W; motor efficiency: 70.60%; propeller force efficiency: 9.827 G/W 40% throttle; 80.9 V.
Performance at 45% throttle	Current: 19.9 A; speed: 2563.7 RPM; force: 10.7 KG; torque: 4.5 N.M; motor output power: 1217.9 W; system input power: 1608.5 W; motor efficiency: 75.80%; propeller force efficiency: 8.826 G/W 45% throttle; 80.8 V.
Performance at 50% throttle	Current: 27.9 A; speed: 2877.5 RPM; force: 14.0 KG; torque: 5.9 N.M; motor output power: 1774.7 W; system input power: 2251.4 W; motor efficiency: 78.90%; propeller force efficiency: 7.905 G/W 50% throttle; 80.68 V.
Performance at 55% throttle	Current: 36.4 A; speed: 3192.5 RPM; force: 16.8 KG; torque: 7.1 N.M; motor output power: 2372.8 W; system input power: 2931.6 W; motor efficiency: 81.00%; propeller force efficiency: 7.146 G/W 55% throttle; 80.57 V.
Performance at 60% throttle	Current: 48.4 A; speed: 3456.7 RPM; force: 20.6 KG; torque: 8.8 N.M; motor output power: 3178.3 W; system input power: 3885.6 W; motor efficiency: 81.90%; propeller force efficiency: 6.631 G/W 60% throttle; 80.35 V.
Performance at 65% throttle	Current: 59.2 A; speed: 3721.1 RPM; force: 23.7 KG; torque: 10.1 N.M; motor output power: 3922.4 W; system input power: 4746.9 W; motor efficiency: 82.60%; propeller force efficiency: 6.096 G/W 65% throttle; 80.21 V.
Performance at 70% throttle	Current: 72.9 A; speed: 3966.9 RPM; force: 27.6 KG; torque: 11.8 N.M; motor output power: 4892.5 W; system input power: 5836.3 W; motor efficiency: 84.00%; propeller force efficiency: 5.753 G/W 70% throttle; 80.04 V.
Performance at 75% throttle	Current: 87.0 A; speed: 4183.8 RPM; force: 31.2 KG; torque: 13.3 N.M; motor output power: 5839.9 W; system input power: 6946.6 W; motor efficiency: 84.10%; propeller force efficiency: 5.393 G/W 75% throttle; 79.84 V.
Performance at 80% throttle	Current: 104.2 A; speed: 4449.3 RPM; force: 35.2 KG; torque: 14.9 N.M; motor output power: 6957.6 W; system input power: 8285.4 W; motor efficiency: 84.00%; propeller force efficiency: 5.085 G/W 80% throttle; 79.54 V.
Performance at 85% throttle	Current: 125.4 A; speed: 4678.6 RPM; force: 39.6 KG; torque: 17.2 N.M; motor output power: 8410.8 W; system input power: 9935.6 W; motor efficiency: 84.70%; propeller force efficiency: 4.724 G/W 85% throttle; 79.24 V.
Performance at 90% throttle	Current: 136.4 A; speed: 4775.8 RPM; force: 42.0 KG; torque: 18.2 N.M; motor output power: 9118.4 W; system input power: 10787.1 W; motor efficiency: 84.60%; propeller force efficiency: 4.611 G/W 90% throttle; 79.07 V.
Performance at 95% throttle	Current: 136.3 A; speed: 4770.9 RPM; force: 42.2 KG; torque: 18.2 N.M; motor output power: 9101.8 W; system input power: 10768.3 W; motor efficiency: 84.60%; propeller force efficiency: 4.643 G/W 95% throttle; 79.01 V.
Performance at 100% throttle	Current: 135.5 A; speed: 4778.9 RPM; force: 41.6 KG; torque: 18.0 N.M; motor output power: 8984.5 W; system input power: 10704.6 W; motor efficiency: 84.00%; propeller force efficiency: 4.641 G/W 100% throttle; 78.97 V.