Block 4 upgrades are bringing quantum leaps in capability to the world’s most advanced, survivable and connected fighter.
Block 4 modernization – over 75 major upgrades for all three F-35 variants – is the most significant evolution of F-35 capabilities to date, including increased missile capacity, advanced electronic warfare capabilities and improved target recognition.
Block 4 Basics
- Block 4 upgrades provide the most significant evolution of capabilities to date for the F-35, including increased missile-carriage capacity, added advanced non-kinetic electronic warfare capabilities and improved target recognition.
- Tech Refresh-3 (TR-3), which enables Block 4, introduces open mission systems architecture, a new integrated core processor with greater computing power, an enhanced panoramic cockpit display, a larger memory unit and other classified capabilities.
“Block 4 upgrades add new and enhanced capabilities to ensure our platform remains relevant against rapidly evolving threats,” said Lt. Gen. Michael Schmidt, F-35 Program Executive Officer.
“Much like a new mobile cell phone or personal computer, TR-3 will host new Block 4 capabilities and applications with significantly more computing power and memory than the legacy infrastructure.”
Better, Together
The growing global fleet of F-35s is strengthening global security and bolstering partnerships with allies around the world.
Block 4 capability upgrades benefit F-35s across all variants and nations in the F-35 program – allied deterrence in action across Europe, the Indo-Pacific and everywhere in between.
