China military displays upgraded Z-20 helicopter at Zhuhai air show
"The Z-20F is similar to the U.S. Navy's SH-60 and will provide significant improvements in ASW (anti-submarine warfare) ...
Jane's Information Group26d
General Atomics demonstrates drone-deployed ASW sensor pod
The demonstration, which took place in late January but was officially disclosed in February, featured anti-submarine warfare (ASW) buoys from the company's Sonobuoy Dispensing System (SDS ...