AN/AWG-9

[1] It is a long-range air-to-air system capable of guiding several AIM-54 Phoenix or AIM-120 AMRAAM missiles simultaneously, using its track while scan mode.

Both the AWG-9 and APG-71 were designed and manufactured by Hughes Aircraft Company's Radar Systems Group in Los Angeles; contractor support was later assumed by Raytheon.

Although the radar and missile systems started to mature (after the better part of a decade at this point) the F-111B proved to be considerably overweight and had marginal performance, especially in engine-out situations.

It incorporates technology and common modules developed for the APG-70 radar used in the F-15E Strike Eagle, providing significant improvements in (digital) processing speed, mode flexibility, clutter rejection, and detection range.

The system features a low-sidelobe antenna, a sidelobe-blanking guard channel, and monopulse angle tracking; all of which are intended to make the radar less vulnerable to jamming.

Hughes delivered enough APG-71 radars and spares to equip all 55 F-14Ds produced or converted before the F-14D program was scaled back as a cost-cutting measure and eventually canceled.