50KW 154120154Brushless out runner Motor 35-80kv large air craft

15412015470(Sensorless, sesnored ) Any kv not higher than 80KV (35, 55, 80)
Large scale 40kw Brushless out runner motor for plane
The spec as following:
MOTOR: S-154120 KV55
KV: 25, 35 ,55, 80
MAX POWER: 45KW-50KW
WIRE WINDS:
MAX AMP: 500A
ESC: 400A/500A
MAX VOLT: 120V
NO LOAD CURRENT(20v testing voltage): 7A
RESISTANCE (mOhm): .140
SIZE: 154 x 115.54( without shaft )
Stator: 135*50mm
WEIGHT (kg): 5.9
SHAFT: 15mm Accessory pack: Yes
Internal PCB with 120 degree hall effect sensors
this is 4 different motors by KV rating, The Kv rating of a brushless motor is the ratio of the motor's unloaded rpm to the peak voltage on the wires connected to the coils. Knowing the Kv rating of a motor will help you determine how fast that motor will rotate when a given voltage is applied to it. (25,35, 55, 80) formula ( KV X Voltage=RPM)