AN/APG-63(V)3

AN/APG-63(V)3
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Name	AN/APG-63(V)3
Country	United States
Type	Active electronically scanned array radar
Introduced	2009
Designer	Raytheon Technologies
Used by	United States Air Force
Platform	McDonnell Douglas F-15 Eagle

AN/APG-63(V)3 The AN/APG-63(V)3 is an active electronically scanned array (AESA) radar retrofit for the F-15 family developed by Raytheon Technologies and fielded by the United States Air Force for fleet modernization. It replaced mechanically scanned arrays on legacy F-15 platforms, enhancing situational awareness, engagement ranges, and reliability for air superiority missions alongside systems like the AN/APG-70 and the AN/APG-82(V)1 upgrades. The program intersected with broader modernization efforts involving contractors such as Boeing and integrations with weapons like the AIM-120 AMRAAM and sensors used on aircraft including the F-22 Raptor.

Development and Design

The (V)3 originated from a competitive modernization effort influenced by trials with AESA programs for platforms such as the F-16 Fighting Falcon and the F/A-18E/F Super Hornet and by research from institutions like MIT Lincoln Laboratory and Sandia National Laboratories. Raytheon adapted AESA modules and digital beamforming techniques proven in programs including the AN/APG-77 and AN/APG-79, leveraging supply chains tied to firms such as Northrop Grumman and component suppliers like Analog Devices and Texas Instruments. Design choices emphasized modular line-replaceable units compatible with McDonnell Douglas-designed avionics bays and interoperability with datalinks such as Link 16 and avionics suites from Rockwell Collins and Honeywell International. Certification and testing involved flight trials with Eglin Air Force Base test units, logistics coordination with Air Combat Command, and export considerations influenced by the Arms Export Control Act and agreements with partner nations like Japan and Israel.

Technical Specifications

The AESA architecture uses thousands of transmit/receive (T/R) modules inspired by designs from Northrop Grumman and manufacturing techniques from Raytheon Missiles & Defense, providing multifunction capability for air-to-air search, track-while-scan, and limited air-to-ground modes analogous to systems on the EA-18G Growler and F-35 Lightning II. Frequency bands operate in X-band allocations used by radars such as the AN/APG-77, with pulse-Doppler processing, low-probability-of-intercept modes leveraging techniques from Electronic Warfare programs and waveforms shared with platforms like the EA-6B Prowler. Power management and cooling systems draw on heritage from AN/APG-70 installations; mean time between failures improved following models developed by Defense Advanced Research Projects Agency. Weight, aperture, range, and probability-of-detection performance were balanced to maintain F-15 Eagle center-of-gravity and flight envelope restrictions determined by Federal Aviation Administration-style certification processes managed by Air Force Materiel Command.

Operational History

Initial fielding commenced in the late 2000s with installation on F-15C Eagle and retrofit initiatives overseen by Boeing sustainment units; deployments supported operations coordinated by commands such as Pacific Air Forces and United States Central Command. Operational employment occurred alongside doctrine developed by Air Combat Command and tactics derived from exercises like Red Flag and bilateral drills with partners including Royal Air Force and Japan Air Self-Defense Force. Real-world missions integrated the radar with weapons systems such as the AIM-9 Sidewinder and the GBU-12 Paveway II, enhancing beyond-visual-range interception capabilities demonstrated during training sorties with adversary aircraft including Sukhoi Su-27 derivatives flown by partner squadrons. Sustainment and upgrade cycles were informed by logistics practices from Air Force Sustainment Center and lessons from deployments supporting operations referenced in planning by U.S. Northern Command and allied planning cells.

Variants and Upgrades

The base (V)3 block has spawned incremental software and hardware upgrades coordinated between Raytheon Technologies engineering teams and maintenance depots such as those at Tinker Air Force Base; upgrades paralleled developments in the AN/APG-82(V)1 program and avionics modernization suites from Honeywell International. Enhanced signal processing, electronic protection features, and compatibility with datalinks such as Link 16 and future networked systems paralleled efforts involving contractors like BAE Systems and research by Johns Hopkins University Applied Physics Laboratory. Exportable derivatives were considered under rules enforced by the Department of State and acquisition oversight by Defense Security Cooperation Agency, with potential integrations on international F-15 customers including Saudi Arabia and Qatar receiving tailored upgrades.

Operators and Deployment

Primary operator is the United States Air Force, with deployments across active-duty units, Air National Guard wings such as those previously operating the F-15C/D and F-15E Strike Eagle fleets, and forward basing in regions overseen by U.S. European Command and U.S. Indo-Pacific Command. International interest involved air arms such as the Japan Air Self-Defense Force, the Royal Saudi Air Force, and the Israel Defense Forces, where retrofit programs required coordination with export-control authorities like the Defense Security Cooperation Agency and compliance with procurement frameworks of partner ministries such as Ministry of Defense (Japan). Depot maintenance and life-cycle support continue under contracts involving Boeing, Raytheon Technologies, and maintenance units at sites including Hill Air Force Base and Oklahoma City Air Logistics Complex.

Category:Aircraft radars