US Set to Deploy F-35s Without Operational Radars, Sources Warn

The US military is preparing to field F-35 fighters lacking fully functional APG-85 radars, presenting a temporary but critical capability gap. This decision risks degrading frontline sensor effectiveness amid rising global airpower competition.

The US Department of Defense is reportedly moving forward with accepting new F-35 fighter jets without their advanced APG-85 radars fully operational. According to sources cited by Rep. Rob Wittman, a high-profile defense figure, the radar challenges are ongoing and will take time to resolve, but planes are expected to be delivered regardless.

Background issues with the APG-85 radar involve integration and software problems, hampering the sensor’s performance. The radar is a fundamental component for the F-35’s stealth multirole capabilities, vital for target detection, tracking, and engagement in contested environments. Initial expectations aimed for full radar readiness before frontline deployment.

Strategically, fielding aircraft without functional radars undercuts the F-35’s core advantage in electronic warfare and situational awareness. This degradation could embolden peer competitors like China and Russia, who are rapidly advancing their own fifth-generation fighters and sensor fusion technology.

The APG-85 radar is a next-generation AESA system designed to offer increased detection range, electronic attack capabilities, and enhanced targeting precision. Each F-35 variant relies heavily on this sensor suite to maintain superiority in complex battle spaces. Notably, the fleet size affected could number in the hundreds, representing billions in sunk costs.

Looking ahead, this interim acceptance risks creating a vulnerable operational window for US airpower, potentially inviting adversaries to exploit these sensor gaps. While fixes are anticipated, the time lag could affect ongoing regional contingencies and global power projection, demanding urgent mitigation and transparency.