Ghostrider gunships receive upgraded EW countermeasure
AC-130J Ghostrider gunship at Kadena Air Base in Japan, 29 March 2021. (Photo: USAF/Capt Renee Douglas)
ALQ-251 RFCM systems aboard AC-130J Ghostrider aircraft are designed to protect against EW systems and radar-guided weapons in contested environments.
The ALQ-251 RF countermeasure (RFCM) system from Northrop Grumman has been delivered to US Special Operations Command (USSOCOM) as part of an AC-130J aircraft upgrade led by Sierra Nevada Corporation.
The ALQ-251 ‘will provide superior situational awareness and protection against electronic warfare systems and radar-guided weapons in contested and congested electromagnetic spectrum environments’, Northrop Grumman noted in a 1 March announcement.
USSOCOM in July 2020 awarded Sierra Nevada Corporation a $700 million contract to act as prime systems integrator for the RFCM upgrade on AC-130J Ghostrider gunships and MC-130J Commando II tanker aircraft, to help protect aircrew from air- and land-based enemy radar and missile systems.
The deal includes RFCM system engineering services, logistics support and spare parts.
BAE Systems was the previous RFCM system provider for the AC-130J and MC-130J, having been awarded a contract in January 2016.
Related Equipment in Defence Insight
More from Air Warfare
-
![Why the F-16 fighter jet remains a force to be reckoned with (updated 2026)]()
Why the F-16 fighter jet remains a force to be reckoned with (updated 2026)
The Lockheed Martin F-16 fighter jet remains in the limelight more than 40 years after its first flight. Shephard sums up the latest developments and details everything you need to know about the aircraft in 2026.
-
![Airbus Helicopters sees defence portfolio’s “strong momentum” continue into 2026]()
Airbus Helicopters sees defence portfolio’s “strong momentum” continue into 2026
The aerospace company’s 2025 performance figures revealed significant orders from various European armed forces and a boost in demand for its uncrewed offerings.
-
![Singapore Airshow 2026: Early adopters and big spenders point to UAV market opportunities]()
Singapore Airshow 2026: Early adopters and big spenders point to UAV market opportunities
While an estimated $37.99bn is still to be awarded across the Asia-Pacific uncrewed aerial vehicle market, the balance of potential future spending is unevenly split between various countries, with significant opportunities to be found in the collaborative combat aircraft space.
-
![UK MoD awards investment for full production of RAF’s Eurofighter Typhoon radar upgrade]()
UK MoD awards investment for full production of RAF’s Eurofighter Typhoon radar upgrade
The contract deal will enable the production and integration of the Eurofighter Typhoon’s new Eurofighter Common Radar System Mk 2 on part of the UK Royal Air Force’s fleet.
-
![Bayraktar TB2: The $4.11 billion market success of a cost-effective MALE UAV]()
Bayraktar TB2: The $4.11 billion market success of a cost-effective MALE UAV
The success of the Bayraktar TB2 stems from it fulfilling a niche of providing reasonable capabilities at a low cost, leading to its acquisition by more than 30 countries including many in Africa; but there are reasons to be cautious about its potential future prospects.
