US Navy E-2D Block II upgrade advances

The US Navy's E-2D Advanced Hawkeye Block II upgrade passed its critical design review in August 2026. The $1.19 billion program aims to make the aircraft a 'quarterback' for future carrier air wings, integrating with F-35Cs and sixth-generation fighters.

The US Navy approved a modification in August 2026 to accelerate upgrades to its carrier-based E-2D Hawkeye aircraft. The Block II program passed its critical design review, paving the way for flight tests to begin in Fiscal Year 2029.

These upgrades are centered on a new "software foundation for rapid capability insertion." The Portfolio Acquisition Executive Aviation (PAE) stated this modernization introduces a state-of-the-art cockpit, increased computing power, an Open Mission Systems framework, and robust cybersecurity. The goal is to ensure the E-2D remains the premier node for airborne command and control against emerging threats.

The Quarterback Role

The Navy says the Open Mission Systems approach "supercharges the industrial base" and delivers capability "at the speed of relevance." The modernized cockpit is designed to reduce pilot workload while boosting situational awareness. Following 2026's Operation Epic Fury, US Fleet Forces commander Admiral Karl Thomas said Hawkeyes were key to detecting missile and drone threats from Iran. "Quite frankly, it's the best that we have at detecting that type of thing," Thomas said during the WEST 2026 conference.

The design review followed a $1.19 billion contract awarded to Northrop Grumman in July 2026 for the first three Block II E-2Ds. The aircraft, built around the AN/APY-9 radar, are the most advanced command-and-control planes in US Navy service. China has recently introduced the carrier-based Xi'an KJ-600, which bears a striking resemblance to the Hawkeye, reflecting the enduring advantages of this aircraft type.

Fleet Plans and Operators

The US Navy contracted for another three E-2D Hawkeyes in 2026, with the first delivery expected in 2030. This ends a brief purchasing hiatus since Fiscal 2024. In Fiscal 2027 budget documents, the Navy has asked for funding to buy another six Block II Hawkeyes, stating a total need for 86 aircraft.

The French carrier's E-2C Hawkeyes provide its carrier group with more situational awareness than the Royal Navy's Queen Elizabeth-class carriers, which cannot operate the Hawkeye due to their ski jumps.

Foundation for Next-Generation Fighters

For next-generation or sixth-generation fighter jets, rapid iterative upgrades are a hallmark. This is why the Open Mission Systems in the Block II are critical. The upgrade provides greater processing power for sensor fusion, modern interfaces, and high-capacity tactical data exchange.

It establishes a foundation for integrating drones and future combat aircraft far more quickly than traditional closed architectures.

Navy and Northrop officials frame Block II's open architecture as the bridge to "sixth-generation command and control." The upgrade is intended to be the connective tissue that lets the E-2D quarterback a mixed fleet, including the Navy's planned F/A-XX sixth-gen fighters, F-35Cs, legacy Super Hornets, Collaborative Combat Aircraft, and the MQ-25 Stingray tanker drone. The ecosystem is considered decisive. The reported downing of a Russian Su-35S in Ukraine by an older Ukrainian F-16AM was suggested by analyses to be the result of a wider kill chain, not the fighter jet alone.

For the US Navy, the E-2D Advanced Hawkeye is increasingly intended to perform that same orchestrating 'quarterback' role, seeing, fusing, distributing, and commanding the battle with its three mission operators.

Source: Simple Flying