The Japan Air Self-Defence Force (JASDF) is planning a $400 million avionics upgrade for its fleet of Northrop Grumman E-2C Hawkeye airborne early-warning (AEW) aircraft, to improve interoperability with the US military.
The US Defense Department has notified Congress of the proposed Japanese upgrade project. The modification work is intended to dovetail with the US Navy programme to acquire improved new-build E-2C Group 2 aircraft.
The JASDF operates 13 Group 0-standard aircraft ordered and delivered in batches between 1982 and 1993. They are equipped with the Lockheed Martin APS-138 radar, but have limited computing and processing power and lack the Litton ALR-173 passive detection system fitted to latter aircraft.
Improvements will include fitting the E-2C Group 2's more modern APS-145 radar, offering extended 550km (300nm) range and improved overland detection and tracking capability. Other enhancements are thought to include a new central mission-computer, for expanded tracking capacity, colour displays, improved communications, and a global-positioning system.
Where possible, the upgrade will be done in-country, with line-replaceable-type systems purchased off the shelf and installed in Japan. Prime contractor Northrop Grumman is to team with Toshiba on the installation and integration of avionics, while Kawasaki Heavy Industries will provide needed structural modifications.
Source: Flight International
