Ground test results of flight control system for the Smart UAV

The ground test results of Smart UAV are described. The ground test consists of HILS, iron-bird test, 4-DOF (degrees of freedom) ground rig test, and tethered hover test. One of the main purposes of ground test is to evaluate the integrated flight control system including a digital flight control computer, GPS/INS sensor, air data sensors, etc as well as ground control system (GCS). The performances of whole flight control systems were evaluated. Rotor speed was kept constantly by the rotor governor even during collective sweep and pitch/roll attitude SCAS (Stability and Control Augmentation System) showed good handling qualities performance during 4-DOF and tethered hover test. These control laws and guidance law will be evaluated during the flight test of envelope expansion planed for this year. This paper presents the ground test results and the procedure for Smart UAV.