🇯🇵 Technical Configuration and Testing of Japan’s Kawasaki XEC-2 Electronic Warfare Aircraft

Japan’s programme to develop airborne electronic warfare capabilities has reached a major milestone with the beginning of flight testing of the XEC-2 prototype, nicknamed the “Platypus” in aviation circles due to the distinctive shape of its radomes. The first flight from Gifu Air Base, conducted with an F-2 fighter escort, confirmed the platform’s stable aerodynamic characteristics following substantial modifications to the fuselage configuration. The test cycle included checks of onboard systems under various operating modes and concluded with a normal landing, paving the way for comprehensive testing of the mission equipment intended for group protection and the suppression of enemy air-defence systems.

The XEC-2’s electronic warfare suite is based on high-power active electronically scanned arrays (AESA) using gallium nitride (GaN) technology, installed in the nose, tail and side radomes. The system’s operating frequency range reportedly spans from 0.5 to 20 GHz, allowing it to affect a wide variety of surveillance and target-acquisition radars, as well as communications and data-transfer links. The equipment is capable of generating highly complex forms of interference, ranging from frequency- and spectrum-targeted noise jamming to deceptive techniques designed to produce false range and velocity information. Thanks to the narrow beam patterns of its AESA arrays, the XEC-2 can deliver extremely high jamming power density in critical directions while minimising unwanted electromagnetic exposure to friendly forces.

The Kawasaki C-2 transport aircraft was selected as the basic platform because of its substantial internal volume, which is required to accommodate large signal-processing computer systems and cooling equipment for the high-power transmitters. The C-2’s considerable electrical generation capacity allows it to power energy-intensive electronic warfare equipment without significantly compromising flight performance.

Further testing is expected to focus on algorithms for the automated identification of enemy radar emissions and the creation of digital threat libraries. Combined with the platform’s high mobility, these capabilities could make the XEC-2 one of the most dangerous electronic warfare assets in the arsenal of the Japan Self-Defense Forces.

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