What is the focus of testing for Block 4 upgrades?

The focus of testing for Block 4 upgrades is centered on operational effectiveness and interoperability. This approach emphasizes the need to ensure that new capabilities enhance the fighter's performance in real-world scenarios and that they can effectively work with other systems and platforms within the joint force structure. Testing is not solely about technical improvements; it is crucial for validating that the upgrades will positively impact mission success when integrating with allied or partner forces.

The objective is to ensure that these enhancements address the needs of modern warfare, where versatility and collaboration among different military platforms are paramount for operational success. By focusing on operational effectiveness, the upgrades are evaluated for their ability to improve combat readiness and ensure that the aircraft can communicate and operate seamlessly alongside other assets, which is critical for achieving strategic missions.