Manufacturer catalog

BAE Systems and L3Harris Technologies

BAE Systems and L3Harris Technologies are separate defense companies named together on the Compass Call electronic-attack modernization team. BAE Systems is publicly identified as the Compass Call mission-system prime, while L3Harris is identified as the aircraft integration prime for rehosting that system on the Gulfstream G550-based EA-37B.

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The joint attribution is most useful for Compass Call records where public sources describe a split industrial role rather than a single company prime. BAE Systems produces and modernizes the airborne electromagnetic-attack mission system, including the mission operating system and capability insertions used to disrupt communications, radar, navigation, and command-and-control networks. L3Harris missionizes the business-jet platform, integrating the migrated Compass Call equipment into the G550 airframe at its Waco, Texas aircraft missionization center.

The resulting EA-37B Compass Call carries forward a mission lineage that began on EC-130H aircraft and is now shifting to a faster, higher-altitude commercial-derivative platform. Air Force and company sources describe the EA-37B as a replacement for the legacy EC-130H fleet, with the first test aircraft delivered in 2023 and Air Combat Command receiving its first aircraft for pilot training at Davis-Monthan Air Force Base in August 2024.

Airborne electronic attackElectromagnetic warfare mission systemsAircraft missionizationCompass Call modernizationGulfstream G550 special-mission aircraft integration

Notable Systems

EA-37B Compass Call, Airborne electromagnetic attack aircraft, Aircraft & UAVs

EA-37B Compass Call

Airborne electromagnetic attack aircraft

BAE Systems and L3Harris delivered the first EC-37B, later redesignated EA-37B, after migrating Compass Call mission equipment from the EC-130H into a Gulfstream G550-based aircraft.

Sources: BAE Systems-L3Harris EC-37B delivery, L3Harris EA-37B Compass Call, Air Force EA-37B delivery
EC-130H Compass Call, Airborne electronic attack aircraft, Aircraft & UAVs

EC-130H Compass Call

Airborne electronic attack aircraft

The EC-130H is the legacy Compass Call aircraft whose mission equipment and operational role are the baseline for the EA-37B rehost described by BAE Systems, L3Harris, and the Air Force.

Sources: BAE Systems Compass Call, L3Harris EA-37B Compass Call, Air Force EA-37B delivery

Manufacturer History

  1. First EC-37B delivered for testing

    BAE Systems and L3Harris delivered the first of 10 EC-37B Compass Call aircraft to the U.S. Air Force for combined developmental and operational testing.

    Sources: BAE Systems-L3Harris EC-37B delivery

  2. First ACC EA-37B arrives at Davis-Monthan

    Air Combat Command received its first EA-37B Compass Call for pilot training at Davis-Monthan Air Force Base, with the aircraft assigned to the 55th Electronic Combat Group and flown by the 43rd Electronic Combat Squadron.

    Sources: Air Force EA-37B delivery, L3Harris EA-37B Compass Call

  3. L3Harris describes third EA-37B delivery

    L3Harris said it had delivered the third U.S. Air Force EA-37B Compass Call aircraft integrated with BAE Systems-produced electromagnetic-attack mission-system capabilities.

    Sources: L3Harris EA-37B Compass Call

Website links
BAE Systems-L3Harris EC-37B deliveryL3Harris EA-37B Compass CallBAE Systems Compass Call product pageAir Force EA-37B delivery article

Open sources identify a Compass Call program team rather than a separately incorporated manufacturer. BAE Systems is cited for the mission system, and L3Harris is cited for aircraft integration and missionization.

Manufacturer Sources

  • BAE Systems-L3Harris EC-37B deliveryPublisher: BAE Systems | Note: Supports the joint delivery, the first-of-10 program milestone, BAE Systems' mission-system prime role at Hudson, New Hampshire, L3Harris' platform integration role at Waco, Texas, and the EC-130H-to-G550 rehost context. | Accessed: 2026-07-11
  • L3Harris EA-37B Compass CallPublisher: L3Harris Technologies | Note: Supports L3Harris' EA-37B delivery context, BAE Systems-produced electromagnetic-attack mission-system capabilities, the first Air Combat Command aircraft, and the EC-130H Compass Call lineage. | Accessed: 2026-07-11
  • BAE Systems Compass CallPublisher: BAE Systems | Note: Supports BAE Systems' Compass Call mission-system engineering, integration, testing, and prime-contractor role, plus the EC-130H-to-G550 modernization context. | Accessed: 2026-07-11
  • Air Force EA-37B deliveryPublisher: U.S. Air Force | Note: Supports the August 23, 2024 Air Combat Command delivery, Davis-Monthan training context, EA-37B mission description, and replacement of the legacy EC-130H fleet. | Accessed: 2026-07-11
  • DVIDS EA-37B at Davis-MonthanPublisher: Defense Visual Information Distribution Service | Note: Supports public-domain image provenance and basic EA-37B mission context for the catalog image. | Accessed: 2026-07-11

Produced weapons

Category

Aircraft & UAVs

Crewed aircraft, drones, and loitering munitions.

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EA-37B Compass Call, Airborne electromagnetic attack aircraft, Aircraft & UAVs2020 United States-Iran ConflictEA-37B Compass CallAirborne electromagnetic attack aircraftBuilt in: United States / United KingdomThe EA-37B Compass Call is the U.S. Air Force's Gulfstream G550-based airborne electromagnetic attack aircraft, built by BAE Systems and L3Harris to disrupt communications, radar, navigation, and other tactical networks. The program was approved in 2018 to replace the EC-130H, first delivered in 2023, redesignated EA-37B in October 2023, and put into training sorties in 2025.