The Martin Series 5008/290KV Long Endurance Brushless Motor from Tarot is designed and built for long endurance multirotors. Fully CNC machined and crafted, the outer flat table is smooth and unmarked with excellent balance. The rotor is refined with high magnetic material neodymium iron boron, the stator is made of high-strength epoxy resin pressurized and reinforced for protection and high temperature resistance, the high flux outrunner motor is calibrated with special balancing, which improves the vibration problem caused by poor balance of ordinary outrunner motor, and the motor shaft is made of high speed alloy steel.