Product
Powertrain modelSITLValidation Report
Database
MotorsPropellersBatteries
DocsBlogAboutPricing
Theme

Physics-accurate electric-UAV powertrain simulation.

  • SDK on GitHub
  • LinkedIn
Theme

Product

  • SITL & mission testing
  • Validation & methodology
  • Plans & pricing
  • Product changelog

Database

  • Motor database
  • Propeller database
  • Battery database

Developers

  • API documentation
  • API reference
  • Python SDK
  • MCP server for AI assistants
  • User guide

Company

  • About ThrustLab
  • Engineering portfolio
  • Engineering articles
  • Contact us

Legal

  • Terms of service
  • Privacy policy
  • Refund policy
© 2026 Upwash LLC·Patent US 2026/0062150 A1·Engineering aid, not for safety-critical or certification use.

We use cookies and analytics tools to understand how you use ThrustLab and improve the experience. Privacy Policy

Motors›AXI 4120/18 GOLD LINE V3 515kV

AXI 4120/18 GOLD LINE V3 515kV

The AXI 4120/18 GOLD LINE V3 515kV is a 515 kv motor with a 49.8 × 54.4 mm stator, weighing 315 g and rated to 59 A.

Simulate this motor

Specifications

Identity

BrandAXI
ModelAXI 4120/18 GOLD LINE V3 515kV
kv515

Electrical

Max A59
Phase resistance21 mΩ
Poles14
Maker cells—
Curve pack5S

Mechanical

Weight0.69 lb
Stator49.8×54.4
Stator length54.4 mm

Limits

Max power—
MotorAXI 4120/18 GOLD LINE V3 515kVThis page
Propeller13x13N
BatteryGAONENG GNB LiHV 5S 19V 1100mAh 60C XT30 LiPo Battery LongRange
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 %3,2540.53 lb24 W1.153.69.99
40 %4,2580.92 lb45 W2.164.19.31
50 %5,2361.40 lb74 W3.571.18.52
60 %6,1811.95 lb114 W5.475.87.77
70 %7,0822.58 lb164 W7.8797.12
80 %7,9323.25 lb225 W10.9816.55
90 %8,7233.95 lb296 W14.582.26.07
100 %9,1704.38 lb342 W1782.65.81

Related

Same maker

  • AXI 105.20 KV160 160kV
  • AXI 105.20 KV185 185kV
  • AXI 105.30 KV125 125kV
  • AXI 105.30 KV135 135kV
  • AXI 2203/46 GOLD LINE V2 1720kV
  • AXI 2203/52 GOLD LINE V2 1525kV

Paired with

  • 11x4.7SF
  • 12x8E
  • 13x13N
  • 17x7E
  • GAONENG GNB LiHV 5S 19V 1100mAh 60C XT30 LiPo Battery LongRange

Same class

  • AXI 4120/14 GOLD LINE V3 660kV
  • AXI 4120/14 V3 LONG 660kV
  • AXI 4120/18 V3 LONG 515kV
  • AXI 4120/20 GOLD LINE V3 465kV
  • AXI 4120/20 V3 LONG 465kV
  • AXI 4130/12 V3 LONG 500kV
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.