The Gulfstream Turbo Commander (AC-690) is a stable high-winged twin, pressurized turboprop aircraft that is suitable for a variety of missions. The standard configuration allows for mission equipment, two pilots, and one photographer. However with all seats installed five scientists/technicians may be accommodated in the cabin. NOAA’s AC-690 Turbo Commander used by NGS Remote Sensing Division and NOHRSC (National Operational Hydrologic Remote Sensing Center).