* Hydraulically operated folding ramp which allows for efficient loading and unloading of litter patients and special
* Ceiling receptacles for securing intravenous bottles.
* A special care area with a separate ventilation system for patients requiring isolation or intensive care.
* Eleven vacuum and therapeutic oxygen outlets, positioned in sidewall service panels at potential litter tier locations.
* A 28 volt DC outlet located in the special care area. Twenty-two 115 volt AC-60 hertz electrical outlets, located
throughout the cabin, permit the use of cardiac monitors, respirators, incubators and infusion pumps at any location
within the cabin.
* A medical refrigerator for preserving whole blood and biological drugs.
* A medical supply work area with sink, medicine storage section and work table, fore and aft galleys and lavatories.
* Aft-facing commercial airline seats for ambulatory patients.
* A medical crew director's station with desk, communication panel and a control panel to monitor cabin temperature,
therapeutic oxygen and vacuum systems.
* An auxiliary power unit that provides electrical power for uninterrupted cabin air conditioning, quick servicing during
en route stops and self-starting for the twin engines.
The pictured aircraft was delivered to the USAF on February 10, 1972. On September 4, 2003, this aircraft was transferred to the 309th Aerospace Maintenance and Regeneration Group (AMARG) at Davis-Monthan AFB, Tucson, Arizona, where it still is as of this day. A total of 21 C-9As were ordered by the USAF, serials:
67-22583 to 67-22586 (c/n 47241, 47242, 47295, 47296)
68-8932 to 68-8935 (c/n 47297 to 47300)
68-10958 to 68-10961 (c/n 47366, 47367, 47448, 47449)
71-0874 to 71-0882 (c/n 47467, 47471, 47475, 47495, 47536, 47537, 47538, 47540, 47541)."