Navy and Northrop Grumman Clear Critical Design Review for E-2D Advanced Hawkeye Block II Upgrade

The U.S. Navy and Northrop Grumman have successfully completed the Critical Design Review (CDR) for the E-2D Advanced Hawkeye Block II upgrade, previously known as the Delta System Software Configuration. This major modernization effort introduces an open mission systems architecture, an updated cockpit, and enhanced computing power to reduce pilot workload and resolve parts obsolescence. Flight testing is scheduled to begin in fiscal year 2029, with the first upgraded aircraft deliveries expected by the end of the decade. The upgrade will be retrofitted onto existing aircraft and integrated directly into new production lines.

// Background

The E-2D Advanced Hawkeye is a carrier-capable, tactical airborne early warning and command-and-control aircraft that achieved initial operational capability (IOC) in 2014, though its predecessor platform dates back to the 1960s. Powered by twin Rolls-Royce turboprop engines, the E-2D features a state-of-the-art UHF band radar capable of tracking up to 3,000 targets. The U.S. Navy plans to acquire up to 75 E-2Ds, which are also operated by international allies like Japan, with France expected to receive its first aircraft in 2027.

// Key Developments

• The E-2D Advanced Hawkeye Block II upgrade successfully cleared its Critical Design Review (CDR) in May 2026, with the Navy announcing the milestone in August 2026.
• Key upgrades include an Open Mission Systems (OMS) architecture, an updated cockpit, and enhanced computing power using commercial off-the-shelf technology.
• Flight testing for the Block II configuration is scheduled to begin in fiscal year 2029, with deliveries targeted by the end of the decade.
• The modernization effort aims to resolve parts obsolescence, reduce pilot workload, and allow rapid, non-proprietary technology insertions.