AN/APG-77 AESA Radar

Full Specifications

AN/APG-77 AESA Radar: F-22 Raptor Sensor

The AN/APG-77 is the primary fire control radar of the U.S. Air Force F-22 Raptor, combining active electronically scanned array technology with low probability of intercept features. Designed for air superiority, the radar gives the F-22 long range situational awareness, multi target tracking, precision targeting, and electronic protection capabilities. Northrop Grumman identifies it as an air to air and air to ground radar designed to support the Raptor’s stealth and sensor fusion architecture.

Unlike mechanically scanned radars, the APG-77 uses an AESA antenna containing numerous transmit and receive modules. Electronic beam steering allows the radar to shift beams rapidly without moving the antenna. Its low observable characteristics also help reduce the chance that an opposing radar warning receiver can detect the F-22 through radar emissions. Public sources identify the system as an X band radar, while detailed operational performance figures remain classified.

Manufacturer

The AN/APG-77 was developed through a Northrop Grumman led team with Raytheon, with Northrop Grumman responsible for overall radar design, software, integration, and testing. Earlier development involved Westinghouse and Texas Instruments, whose relevant businesses were later acquired by Northrop Grumman and Raytheon.

Speed and Range

The radar itself has no speed. It is carried by the F-22 Raptor, which is capable of supersonic flight and was designed for long range air combat. The APG-77’s exact detection and tracking ranges are not publicly confirmed. Claims of specific maximum ranges should therefore be treated cautiously. Its publicly documented functions include multi target detection, tracking, air to air combat, and air to ground sensing.

Cost / Price

A historical Forecast International estimate placed the APG-77 at approximately $4.8 million to $5.4 million per aircraft in 2012. This is not a current procurement price, and modern replacement, upgrade, integration, and support costs can differ substantially.

FAQs

Notes

The AN/APG-77 is a specialized F-22 radar, so many technical specifications, including actual detection performance, tracking limits, processing characteristics, power requirements, and detailed electronic warfare capabilities, are not publicly released. Where official figures are unavailable, this listing uses Not publicly disclosed rather than presenting estimates as confirmed specifications.