Saint-Dizier-Robinson Air Base (French: Base aérienne 113 Saint-Dizier) (ICAO: LFSI) is a front-line French Air and Space Force (Armée de l'air et de l'espace) fighter aircraft base located approximately 4 km (2 nautical miles) west of Saint-Dizier, in the Haute-Marne department of the Champagne-Ardenne region in northeastern France. The airport is at an elevation of 458 feet (140 m) above mean sea level. It has one runway designated 11/29 with an asphalt surface measuring 2,412 by 45 metres (7,913 ft × 148 ft).