A hardware-in-the-loop (HIL) platform for unmanned air vehicle (UAV) systems is designed that demonstrates flight attitudes on yaw, pitch and roll axes. The design combines a sophisticated flight simulation software with a platform capable of moving 360 degrees on all axes. This enables the testing of the flight sensors and autopilot algorithms for all sorts of scenarios including emergency and acrobatic cases where an indefinite number of full rotations in the yaw, roll and pitch might take place.

In this paper a Hardware-In-the-Loop (HIL) test platform is used to design a flight stabilization system for Unmanned Aerial Vehicles (UAV). Controllers are first designed and tested separately for lateral and longitudinal axes using numerical simulations, and later these controllers are merged on the HIL platform. It is observed that the resulting controller successfully stabilizes the aircraft to achieve straight and level flight.