Lothal

Build an FPV drone from real parts. Fly it. Feel the difference.

Watch the demo. Pressing play loads the video from YouTube. Open it on YouTube instead.

Lothal is a free, open-source drone design workbench and flight simulator for Windows, macOS and Linux. You pick a frame, motors, propellers, a battery and electronics from a catalog of real parts, and every choice changes the physics. Then you fly exactly what you built.

The nine sections

Airframe
Propulsion
Power
Control
Video
Printed
Config
Ground kit
Field

Get help

Came here from Contact us in the app? To report a problem or ask a question, open an issue on GitHub. The FAQ covers the common ones, and Contributing says what to put in a bug report.

Documentation licensed underCC BY 4.0. Lothal itself is GPL-3.0-or-later.Report a problem.Roadmap.