The Rozas Airborne Research Center (CIAR) is an INTA test center at Rozas aerodrome in Castro de Rei, Lugo, northwestern Spain. It integrates aerial research platforms and unmanned aircraft systems for aircraft, systems and equipment development, campaign evaluation, experimental flight tests and certification research. Official facilities include a paved 1,200 × 45 m runway (04/22), a 1,000 × 40 m dirt runway (16/34), a 40 × 40 m hangar with ground-support equipment, and control, radar, telemetry, communications and meteorological systems. This is an operational research and test facility rather than a normal public attraction; consult INTA’s CIAR guidance before travel or test requests. Official location: Castro de Rei, Lugo, Spain.