Lockheed Pitches F-16G to US Air Force to Replace Aging Fighters and Preserve Combat Fleet Capacity.

Lockheed Martin is proposing a new F-16G variant to the U.S. Air Force as a new-build option to replace aging Fighting Falcons and maintain fighter capacity. Derived from the F-16 Block 70 now produced in Greenville, the proposal would return newly built F-16s to a force structure debate increasingly centered on the F-35A, F-15EX, and future F-47.

The F-16G concept is intended for U.S. Air Force units already operating the Fighting Falcon and would provide a path to replace older aircraft as they leave service. Based on the current Block 70 production standard, the proposal places continued F-16 procurement alongside the service’s ongoing transition toward the F-35A, F-15EX, and F-47 rather than treating those programs as the only options for sustaining fighter numbers.

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A Royal Bahraini Air Force F-16 Block 70 receives fuel from a U.S. Air Force Reserve KC-135 over Southern California during developmental testing at Edwards Air Force Base. (Picture source: US DoD)

Pressure on the size of the U.S. fighter fleet is already documented. Secretary of the Air Force Troy Meink informed Congress on May 5, 2026, that the service had 1,098 fighters in its primary mission aircraft inventory, below the statutory threshold of 1,145 aircraft. The Congressional Research Service also reports that the average age of the fighter fleet has reached 27.4 years and notes that the Air Force ultimately seeks a force of 1,558 crewed combat-coded fighters by 2035. In this context, maintaining available aircraft numbers is becoming as important as introducing new capabilities.

Information on the F-16G first emerged through Aviation Week, which reported on September 16 that Lockheed Martin was presenting the U.S. Air Force with an evolution of the Block 70 intended to address this capacity requirement. Air & Space Forces Magazine separately confirmed that the service is examining the possible purchase of new-build F-16s as part of future budget planning. The U.S. Air Force told the publication that it is in the early stages of analyzing options for its next Future Years Defense Program. This direction is consistent with a Department of the Air Force legislative proposal for FY2026, which describes a future fleet structured around NGAD, the F-35 and modernized F-15s and F-16s, while seeking a balance between technological capability and available force capacity.

From a technical standpoint, the concept described by Aviation Week is based on the F-16 Block 70. The reported configuration includes conformal fuel tanks, 600-gallon external tanks, an infrared search and track system and a Sniper targeting pod. The Block 70 currently produced by Lockheed Martin already incorporates Northrop Grumman’s AN/APG-83 active electronically scanned array radar, derived from technologies developed for fifth-generation fighter radars. Its airframe is designed for a structural service life of 12,000 flight hours, providing the basis for several decades of operation.

The conformal fuel tanks are an important part of this configuration. Mounted along the fuselage, they increase fuel capacity without occupying the main underwing hardpoints. Combined with 600-gallon external tanks, they support longer endurance and greater range on missions requiring more time on station. The IRST provides a passive means of detecting aircraft through their infrared signature, which is useful when crews want to reduce reliance on active radar emissions. The Sniper pod adds electro-optical capabilities for long-range detection, identification, and target designation.

In tactical use, an F-16 of this generation would mainly provide the U.S. Air Force with a platform able to take on missions that do not always require a stealth aircraft. Air defense, interception, combat air patrol, advanced training, and stand-off strike remain missions suited to a modernized fourth-generation fighter. The APG-83 improves the detection and tracking of multiple targets, while the IRST provides a complementary passive sensor. Additional fuel also reduces pressure on aerial refueling assets in some mission profiles. This distribution of tasks could allow more F-35As to be reserved for environments where low observability, sensor fusion and the ability to operate against dense air defenses are required.

The issue is also industrial. Greenville is now the production center for new F-16s intended for international Block 70 and 72 customers. A U.S. order would therefore add domestic demand to a production line already serving several foreign partners. It would extend activity across suppliers involved in radar, avionics, airframe structures, and mission systems while maintaining an industrial base shared with numerous allied air forces.

From a geopolitical perspective, a U.S. return to purchasing new F-16s would extend beyond the immediate requirements of the U.S. Air Force. The aircraft remains in service with numerous allies in Europe, the Middle East and Asia, while Block 70 and 72 production continues its industrial cycle. Direct U.S. participation in this production could support logistical continuity, interoperability, and access to future upgrades across the wider F-16 user community. At a time when air forces are seeking both fleet depth and preparation for high-intensity operations, the F-16G proposal fits into a broader discussion on force capacity and industrial resilience.

Written By Erwan Halna du Fretay - Defense Analyst, Army Recognition Group
Erwan Halna du Fretay holds a Master’s degree in International Relations and has experience studying conflicts and global arms transfers. His research interests lie in Security and strategic studies, particularly the dynamics of the defense industry, the evolution of military technologies, and the strategic transformation of armed forces.