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›BadAss 3520-650Kv

BadAss 3520-650Kv

The BadAss 3520-650Kv is a 650 kv motor with a 35 × 20 mm stator, weighing 229 g and rated to 64 A.

Simulate this motor

Specifications

Identity

BrandBadAss
ModelBadAss 3520-650Kv
kv650

Electrical

Max A64
Phase resistance21.3 mΩ
Poles14
Maker cells—
Curve pack4S

Mechanical

Weight0.50 lb
Stator35×20
Stator length20 mm

Limits

Max power1,420 W
MotorBadAss 3520-650KvThis page
Propeller12x7
BatteryTattu 1100mAh 15.2V 60C 4S1P Lipo Battery Pack with XT30 Plug
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 %3,2770.45 lb20 W1.15310.29
40 %4,2860.77 lb36 W2.164.29.76
50 %5,2661.17 lb59 W3.471.48.98
60 %6,2111.64 lb90 W5.3768.2
70 %7,1102.15 lb130 W7.778.87.51
80 %7,9562.71 lb178 W10.780.66.91
90 %8,7413.28 lb233 W14.381.56.4
100 %9,1833.63 lb269 W16.781.86.13

Related

Other winds

  • BadAss 3520-560Kv
  • BadAss 3520-790Kv
  • BadAss 3520-880Kv
  • BadAss 3520-970Kv

Paired with

  • 11x3.8SF
  • 12x7
  • 13x10F
  • 17x7E
  • Tattu 1100mAh 15.2V 60C 4S1P Lipo Battery Pack with XT30 Plug

Same class

  • AXI 2808/16 GOLD LINE V3 1820kV
  • AXI 2808/16 GOLD LINE V3 LONG 1820kV
  • AXI 2808/20 GOLD LINE V3 1490kV
  • AXI 2808/20 GOLD LINE V3 LONG 1490kV
  • AXI 2808/24 GOLD LINE V3 1190kV
  • AXI 2808/24 GOLD LINE V3 LONG 1190kV
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.