
China Tests 25-Metre Airborne Electromagnetic Sensor System With Potential to Detect Submarines
China has successfully tested a large-scale airborne transient electromagnetic (ATEM) system towed by a helicopter, featuring a 25-metre dodecagonal coil array. Designed primarily for civilian geological surveys, the technology has demonstrated military potential for detecting submerged nuclear submarines, according to prior research. A seven-minute test flight confirmed the system's ability to maintain near-horizontal stability required for accurate measurements.
Source: Interesting Engineering










