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B-52H aircraft conducting a test sortie for radar upgrade using advanced AI and machine learning features for high-resolution ground mapping, all-weather navigation, and threat detection

The U.S. Air Force and Boeing are testing the new AN/APQ-188 Active Electronically Scanned Array (AESA) radar on the B-52H Stratofortress. Derived from fighter jet radars, this upgraded system uses advanced AI and machine learning features for high-resolution ground mapping, all-weather navigation, and threat detection. [1, 2, 3, 4, 5]  

AN/APQ-188 Radar Capabilities
The AN/APQ-188 replaces the antiquated, mechanically-scanned AN/APQ-166 radar system originally fielded decades ago. The modernized AESA radar significantly enhances the bomber’s operational footprint: 

• AI & Machine Learning: The radar processors utilize AI-assisted capabilities to speed up target tracking, track storms and terrain, and help the bomber electronically locate hostile surface-to-air missile batteries. 

• Fighter DNA: The system is heavily derived from the AN/APG-79 radar used on the U.S. Navy's F/A-18E/F Super Hornet. 

• Cockpit Upgrades: Along with the radar, the aircraft is equipped with twin fighter-like hand controllers and high-definition touchscreens for the navigator and radar navigator. 

• Reliability: By relying on solid-state transmitter-receiver modules instead of moving mechanical parts, the radar can steer beams almost at the speed of light and resist enemy jamming. [11]  

Current Testing Status
Developmental testing began in December 2025 after Boeing delivered the first heavily-modified test B-52H to Edwards Air Force Base, California. Ground and flight test campaigns were actively scheduled throughout 2026 to inform a sweeping production decision to retrofit the entire operational fleet of 76 aircraft. [3, 4, 13, 14]  
However, the radar modernization program suffered a tragic setback. On June 15, 2026, a B-52H aircraft conducting a test sortie for this exact radar upgrade experienced an unrecoverable crash shortly after takeoff from Edwards Air Force Base, California, resulting in the deaths of all eight crew members aboard. The incident is currently under investigation by the U.S. Air Force. [15, 16, 17, 18]  

Would you like to know more about the broader B-52J modernization program, which also includes the integration of Rolls-Royce F130 engines? 

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