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© 2026 Upwash LLC·Patent US 2026/0062150 A1·Engineering aid, not for safety-critical or certification use.

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Motors›SunnySky XS X8318S 120kV

SunnySky XS X8318S 120kV

The SunnySky XS X8318S 120kV is a 120 kv motor with a 91.6 × 41 mm stator, weighing 635 g and rated to 64 A.

Simulate this motor

Specifications

Identity

BrandSunnySky
ModelSunnySky XS X8318S 120kV
kv120

Electrical

Max A64
Phase resistance37 mΩ
Poles42
Maker cellsMax 12S
Curve pack12S

Mechanical

Weight1.40 lb
Stator91.6×41
Stator length41 mm

Limits

Max power—
MotorSunnySky XS X8318S 120kVThis page
Propeller27x13E
BatteryMaxAmps 1300mAh 12S
Throttle%
Charge%
Rotors
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Open in the calculator

Performance

Pairings
Download CSV
ThrottleRPMThrust (lb)Power (W)Current (A)Efficiency (%)g/W
30 %1,7541.42 lb70 W1.459.39.13
40 %2,2892.50 lb136 W2.767.28.34
50 %2,8043.84 lb232 W4.772.27.51
60 %3,2905.38 lb359 W7.475.46.81
70 %3,7407.06 lb515 W10.877.56.22
80 %4,1508.79 lb693 W14.978.85.75
90 %4,51610.51 lb888 W19.679.65.37
100 %4,71511.52 lb1010 W22.779.95.18

Related

Other winds

  • SunnySky XS X8318S 100kV

Paired with

  • 20x15E
  • 21x12WE
  • 27x13E
  • MaxAmps 1300mAh 12S

Same class

  • AXI 80.20 KV155 155kV
  • AXI 80.20 KV170 170kV
  • AXI 80.20 KV190 190kV
  • AXI 80.30 KV165 165kV
  • AXI 80.30 KV185 185kV
  • AXI 80.30 KV215 215kV
See all
Fast modelComputed 2026-10-03prom-rs/0.6.2Validation

The curves here are the Fast model, which every account and every visitor runs without limit. An account also runs the Full model, which solves a database propeller from its measured blade geometry.

Engineering aid — ThrustLab results are physics-based estimates, not certified data. Always bench-test and independently validate before committing a real build to flight. Not for safety-critical or certification use.