The cockpit has a combination of analog and digital instrumentation. The seat in the middle at the bottom of the frame is for the flight engineer.A primary mission of this aircraft--a hurricane hunter--is taking measurements in hurricanes to improve predictions and scientific understanding. But these photos were taken during the Southeast Nexus (SENEX) research study of air quality and climate in the Southeastern United States. The aircraft was the centerpiece of the study--filled with scientific instrumentation to analyze gases and small particles.These photos were taken in Smyrna, Tennessee.