B-52 Radar Upgrade Aircraft Deploys to Edwards AFB for Critical Flight Testing

B-52 radar upgrade aircraft arrives at Edwards Air Force Base

A U.S. Air Force B-52 Stratofortress fitted with a major radar upgrade has flown to Edwards Air Force Base in California for dedicated flight testing. The deployment took place in mid December 2025 and marks a key step in validating new sensor capabilities for the aging but still central U.S. strategic bomber fleet.

The aircraft will support a structured test campaign led by the Air Force Test Center, focusing on radar performance, integration, and reliability. Edwards AFB is the primary hub for developmental flight testing of advanced U.S. military aircraft systems.

Why the B-52 radar upgrade matters

The B-52 radar upgrade is a core element of the U.S. Air Force plan to keep the Stratofortress operational into the 2050s. First introduced in the 1950s, the B-52 has undergone multiple modernization efforts, but its legacy radar has long been considered a limitation in contested airspace.

The new radar is derived from the AN APG 79 family, a proven active electronically scanned array system already used on U.S. Navy aircraft. By adapting this technology for the B-52, the Air Force aims to deliver improved target detection, higher resolution mapping, and stronger resistance to electronic attack.

Background on B-52 modernization efforts

The radar effort sits alongside several other major upgrades underway for the bomber. These include new commercial derivative engines, updated communications, improved navigation systems, and the integration of future long range weapons.

Together, these changes are designed to extend the aircraft service life while keeping operating costs under control. Air Force officials have repeatedly stated that the B-52 will operate in tandem with newer platforms such as the B-21 Raider, rather than being replaced outright.

Testing objectives at Edwards AFB

At Edwards, engineers and test pilots will evaluate how the B-52 radar upgrade performs across a wide range of flight conditions. This includes high altitude cruise, long range navigation, and target tracking scenarios relevant to both conventional and nuclear missions.

Testing will also examine how the radar integrates with existing avionics and mission systems. Because the B-52 airframe was not originally designed for modern digital sensors, ensuring stable power, cooling, and data flow is a major focus of the program.

According to U.S. Air Force testing practices, early flight tests typically emphasize safety and basic functionality before moving into advanced mission profiles later in the campaign.

Operational benefits for the U.S. Air Force

Once fielded, the B-52 radar upgrade is expected to significantly improve situational awareness for bomber crews. The new system offers faster scan rates and better performance against moving and low visibility targets.

These improvements support both stand off strike missions and maritime operations, where accurate long range sensing is critical. Enhanced radar capability also strengthens the bomber ability to operate in environments with advanced air defense systems.

From a strategic standpoint, the upgrade reinforces the credibility of the U.S. bomber leg of the nuclear triad by ensuring the aircraft can operate effectively well into the future.

Industry and program context

The radar effort reflects a broader trend within the U.S. Department of Defense to reuse mature technologies across platforms. By leveraging an existing radar design, the Air Force aims to reduce development risk and accelerate deployment timelines.

Defense industry partners are supporting the integration and test phases, working closely with Air Force engineers at Edwards. The program remains part of a wider bomber modernization budget approved under recent defense authorization acts.

What comes next after flight testing

Following the Edwards test phase, data will be reviewed to confirm performance thresholds and identify any required design changes. If results meet expectations, the Air Force will proceed toward low rate initial production and fleet wide installation.

Operational B-52 units are expected to begin receiving the upgraded radar later in the decade. Full fleet integration will take several years, aligning with other major upgrades such as the new engine replacement program.

The successful completion of this test phase will be a critical milestone for ensuring the B-52 remains a viable and effective asset for U.S. global strike missions.