Up until 2016, HC-130P/N aircraft of the Combat Air Forces (CAF) were a combination of mid to late-1960s vintage aircraft based on C-130E airframes and mid-1990s vintage aircraft based on C-130H3 airframes. All underwent extensive modifications. These modifications included night vision-compatible interior and exterior lighting, a personnel locator system compatible with aircrew survival radios, improved digital low-power color radar and forward-looking infrared systems. As of 2018, with the exception of a handful of extant aircraft in the Air National Guard, all remaining HC-130P/N aircraft are operated by the Air Force Reserve Command.