# Hardware In The Loop (HITL) plugin for X-Plane 11/12 **Hardware-in-the-loop (HITL) simulation**, is a technique that is used in the development and testing of complex real-time embedded systems. **X-Plane** is a flight simulation engine series developed and published by Laminar Research https://www.x-plane.com/ **INAV-X-Plane-HITL** is plugin for **X-Plane** for testing and developing flight controllers with **INAV flight controller firmware** https://github.com/RomanLut/INAV-X-Plane-HITL HITL technique can be used to test features during development. Please check page above for installation instructions.