China's navy begins sea trials for a stealthy semi-submersible missile trimeran. Built in Guangzhou and tested in the Bohai Sea, its reduced radar cross section cuts the P-8A's detection range from 350-400 km to below 200 km. Powered by lithium-ion batteries and Stirling motors, it offers months of autonomy with low acoustic signatures using water jets. Sonar detects Virginia-class submarines at a distance of 25-50 km. Armament includes 16-18 vertical launch bays for hypersonic YJ-20 (10-12 M), CJ-10A cruise and YJ-18B anti-ship missiles, plus DK-10 air defense.