The Z-model's integrated avionics system has been developed by Northrop Grumman. The system includes two mission computers and an automatic flight control system. Each crew station has two 8×6-inch multifunction liquid crystal displays (LCD) and one 4.2×4.2-inch dual function LCD. The communications suite combines a U.S. Navy RT-1824 integrated radio, UHF/VHF, COMSEC and modem in a single unit. The navigation suite includes an embedded GPS inertial navigation system, a digital map system and Meggitt's low-airspeed air data subsystem, which allows weapons delivery when hovering.