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

Propellers›APC 4.5x4

APC 4.5x4

The APC 4.5x4 is a 4.5×4 inch, 2-blade propeller weighing 4 g.

Simulate this propeller

Specifications

Identity

MakerAPC
Model4.5x4

Mechanical

Size4.5×4 in
Pitch4.00 in
Blades2
RotationCCW
P/D0.89
Weight0.01 lb

Limits

Max RPM42,000
MotorScorpion SII-2215-900kV
Propeller4.5x4This page
BatteryLiPo 1300mAh 7S 25.9v Battery Pack
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 %8,2690.11 lb25 W1.521.71.97
40 %10,7220.19 lb37 W2.231.62.34
50 %13,1030.30 lb50 W2.942.62.68
60 %15,4090.42 lb64 W3.7542.97
70 %17,6300.56 lb80 W4.764.43.16
80 %19,7450.71 lb101 W6723.21
90 %21,7220.88 lb128 W7.675.83.1
100 %22,8340.98 lb149 W8.975.92.97

Related

Same maker

  • 10.5x4.5
  • 10.5x6
  • 10x10
  • 10x10E
  • 10x12WE
  • 10x3

Paired with

  • AXI 2203/46 GOLD LINE V2 1720kV
  • EMAX ECO II 2207 2400kV
  • Scorpion IS-2830-4650
  • Scorpion SII-2215-900kV
  • Tattu 1100mAh 15.2V 60C 4S1P Lipo Battery Pack with XT30 Plug
  • Tattu 1100mAh 11.4V 60C 3S1P Lipo Battery Pack with XT30 Plug

Same class

  • 4.1x4.1E
  • 4.2x2
  • 4.2x4
  • 4.4x4
  • 4.5x3.5
  • 4.5x4.1E
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 this 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.