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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 3805/45/209

Neumotor 3805/45/209

The Neumotor 3805/45/209 is a 209 kv motor with a 38 × 5 mm stator, weighing 54 g and rated to 10 A.

Simulate this motor

Specifications

Identity

BrandNeumotor
Model3805/45/209
kv209

Electrical

Max A10
Phase resistance1,565 mΩ
Poles22
Maker cells—
Curve pack12S

Mechanical

Weight0.12 lb
Stator38×5
Stator length5 mm

Limits

Max power—
Motor3805/45/209This page
Propeller11x3
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 %2,9890.25 lb14 W0.336.58.35
40 %3,9000.43 lb22 W0.448.48.75
50 %4,7930.65 lb33 W0.758.78.84
60 %5,6680.91 lb47 W0.967.28.71
70 %6,5241.21 lb65 W1.373.68.4
80 %7,3601.54 lb88 W1.877.77.95
90 %8,1741.91 lb117 W2.379.77.42
100 %8,6542.15 lb138 W2.8807.07

Related

Same maker

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

Paired with

  • 11x3
  • 12x6E
  • 13x8E
  • 11x3.8SF
  • 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.