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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›Neumotor 3805/55/171

Neumotor 3805/55/171

The Neumotor 3805/55/171 is a 171 kv motor with a 38 × 5 mm stator, weighing 54 g and rated to 8 A.

Simulate this motor

Specifications

Identity

BrandNeumotor
Model3805/55/171
kv171

Electrical

Max A8
Phase resistance2,327 mΩ
Poles22
Maker cells—
Curve pack12S

Mechanical

Weight0.12 lb
Stator38×5
Stator length5 mm

Limits

Max power—
Motor3805/55/171This page
Propeller13.5x9
BatteryMaxAmps 1300mAh 12S
Throttle%
Charge%
Rotors
Free · no account needed

Open in the calculator

Performance

Pairings
Download CSV
ThrottleRPMThrust (lb)Power (W)Current (A)Efficiency (%)g/W
30 %2,2060.47 lb21 W0.452.610.01
40 %2,8070.78 lb38 W0.859.39.19
50 %3,3701.14 lb62 W1.263.18.34
60 %3,8961.54 lb93 W1.9657.55
70 %4,3851.98 lb131 W2.665.56.83
80 %4,8372.43 lb178 W3.664.86.19
90 %5,2522.88 lb233 W4.763.25.6
100 %5,4833.15 lb271 W5.561.95.27

Related

Same maker

  • 3207/1.5Y/293
  • 3805/100/94
  • 3805/10/939
  • 3805/11/854
  • 3805/12/783
  • 3805/13/722

Paired with

  • 13.5x9
  • 14x10
  • 15x10E
  • 18x5.5MR
  • MaxAmps 1300mAh 12S

Same class

  • 3805/100/94
  • 3805/10/939
  • 3805/11/854
  • 3805/12/783
  • 3805/13/722
  • 3805/14/671
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.