Boeing to enhance electronic warfare (EW) capabilities for Japan Super Interceptor jet fighter program

March 18, 2022
The JSI program is helping Japan to upgrade F-15 combat aircraft to fight effectively alongside Japan's growing fleet of F-35 joint strike fighters.

WRIGHT-PATTERSON AFB, Ohio – Jet fighter designers at the Boeing Co. are enhancing electronic warfare (EW) capability to a major upgrade of Japan's F-15 combat aircraft under terms of a $24.6 million order announced Wednesday.

Officials of the U.S. Air Force Life Cycle Management Center at Wright-Patterson Air Force Base, Ohio, are asking the Boeing Defense, Space & Security segment in St. Louis to add EW capability to upgrades involved in the Japan Super Interceptor (JSI) program.

The JSI program is helping Japan to upgrade the nation's F-15 combat aircraft with new enabling technologies to enable Japanese F-15s to fight effectively alongside Japan's growing fleet of F-35 joint strike fighters.

The contract modification provides for the foreign military sales requirement to add EW system initial non-recurring engineering for the Japan Air Self Defense Force.

Related: Boeing to upgrade Japan's F-15 jet fighters to enable the aircraft to fight effectively alongside the F-35

Boeing won a $471.3 million Air Force foreign military sales contract in late 2021 to develop an integrated suite of aircraft systems to support modification of the Japan Air Self Defense Force F-15MJ aircraft as part of a potential $4.5 billion program approved by the U.S. State Department in 2019 to upgrade 98 Boeing F-15J jet fighters to Japan Super Interceptor aircraft.

These updated aircraft are expected to fly alongside Japan’s fleet of Lockheed Martin F-35 fighter-bombers and take advantage of the strongest capabilities of each aircraft. The F-35 is stealthy with advanced airborne networking, while the F-15 is fast, long range, and carries a large weapons payload.

The JSI upgrade includes new systems like the Raytheon's AN/APG-82(V)1 active electronically scanned array (AESA) radar and the BAE Systems AN/ALQ-239 digital EW system. The JSI also could carry new missiles.

The Japan Super Interceptor program is expected to be similar to the U.S. F-15EX aircraft, which will augment the new F-35 with plenty of fire power on an affordable budget. In 2020 the U.S. Air Force announced a potential $22.9 billion contract to Boeing to design and build the F-15EX jet fighter.

Related: Boeing, Mitsubishi Heavy Industries partner on upgrades to Japan’s F-15J fleet

The F-15EX is based on the F-15 Advanced Eagle that Boeing is building for the air forces of Qatar and Saudi Arabia, which has a fly-by-wire flight control system, digital EW suite, an infrared search and track (IRST) system, and the Raytheon APG-63(v)3 AESA radar.

The F-15EX carries more weapons than similar fighter aircraft, and will be able to launch hypersonic weapons that are as large as 22 feet long weight as much as 7,000 pounds. The F-15EX also is following the U.S. Department of Defense (DOD) DevSecOps initiative to develop secure, flexible, and agile software and an open-systems avionics architecture.

The F-15EX will be a large, powerful, non-stealthy, twin-engine jet fighter able to carry a large air-superiority weapons payload. The plane will be able to carry as many as 22 AIM-9X Sidewinder and AMRAAM medium range air-to-air missiles.

Related: Boeing to install electronic warfare (EW) systems aboard U.S. Air Force F-15 jet fighter aircraft fleet

It also will have a substantially more powerful mission computer than all existing versions of the F-15, new cockpit displays, a digital backbone, infrared search and track (IRST) system, the Raytheon APG-63(v)3 active electronically scanned array (AESA) radar, and the Eagle Passive Active Warning Survivability System (EPAWSS) -- an EW and threat identification system.

The F-15EX also will have terrain-following radar to enable the pilot to fly at a very low altitude following cues displayed on a heads up display. The targeting pod contains a laser designator and a tracking system with a 10-mile range. The plane also will have as many as 11 underwing weapons stations and digital Joint Helmet-Mounted Cueing Systems. The original F-15 jet fighter began development in 1967, and entered service with the U.S. Air Force in 1976.

On this order Boeing will do the work in St. Louis and should be finished by December 2028. For more information contact Boeing Defense, Space & Security online at, the Air Force Life Cycle Management Center at, or the Japan Air Self Defense Force at

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