- Zenith and nadir instrument ports
- Nadir:
- 4x Small ports. 27” x 19” rectangular, off centerline, angled at 28”
- 2x Large ports. 44” x 40” rectangular, on centerline
- Zenith:
- None
- Nadir:
- Modified window ports for instrument and probe mounting
- 4x modified windows, 23” x 16” oval
- External antenna mounts
- None
- Wing pylon instrument mounts
- None
- Optical windows of various materials
- Numerous options
- Dropsonde delivery tube
- NRD-41 and RD-41 capability
- Sonobuoy (AXTCD or similar) capability
- Air and aerosol sampling probes
- Numerous options
- Standard equipment 19-inch racks
- Numerous available: DC-8 Style racks, HIAPER racks, WMD racks, JSC Racks, P-3 Racks all of various U capacity.
- Laser chiller unit
- None
- Both 60 Hz and 400 Hz power available to experimenter stations
- Yes, also 28V DC
- Up to 20 racks and 25 instruments typically accommodated
- Seating for up to 200 experimenters and flight crew
