US Navy completes F/A-18 Block III

Fleet Readiness Center Southwest said on April 21 that it completed the Navy’s first fully in-house Block III upgrade of an F/A-18 Super Hornet. (navair.navy.mil) The work was done at Naval Air Station North Island in California by Navy artisans and engineers rather than by Boeing, which had handled earlier Block III conversion work. (navair.navy.mil) (navy.mil) The upgrade was combined with Service Life Modification, the depot process that rebuilds older Super Hornets so they can keep flying longer. Navy materials say that package extends the jet’s service life to 10,000 flight hours. (navair.navy.mil) (www.navy.mil) Block III is the latest major configuration of the carrier-based strike fighter. Navy officials have described its changes as a new cockpit with larger configurable displays, stronger networking, radar-signature improvements and longer structural life. (www.navy.mil) (www.navair.navy.mil) For the Navy, the immediate change is industrial, not just tactical. Doing the conversion inside a fleet depot gives the service its own capacity to modernize frontline jets without relying entirely on the manufacturer. (navair.navy.mil) (navy.mil) That matters because the Super Hornet remains the backbone of carrier air wings, and the Navy is trying to keep those aircraft relevant while newer systems arrive more slowly. The service accepted its first new-production Block III jet in August 2021. (www.navy.mil) Fleet Readiness Center Southwest had been preparing for this step for years. In 2022, the Navy said the depot would become the first to take on Super Hornet Service Life Modification after Boeing and the F/A-18 program office established the initial procedures. (navy.mil) The April 2026 announcement framed the job as the first “fully organic” Block III modification, meaning the complete upgrade was executed by government personnel in-house. Sea Power magazine reported the milestone the same way after the Navy release. (navair.navy.mil) (seapowermagazine.org) The Navy’s next task is scaling that process from a first aircraft to a repeatable production line. The point of this milestone is not one jet on display, but a depot now cleared to turn older Super Hornets into Block III aircraft on its own. (navair.navy.mil)