United States, Jan. 20 -- General Atomics Aeronautical Systems, Inc. (GA-ASI) and the U.S. Navy continue to expand the Anti-Submarine Warfare (ASW) capability of the MQ-9B SeaGuardian(R) Unmanned Aircraft System (UAS). Flight test was performed on December 17 and featured Sonobuoy Dispensing System (SDS) pods, more than previously tested, doubling the number of sonobuoys available. Sonobuoys are naval sensors that drop from an aircraft into the ocean and help detect submarines. The SeaGuardian deployed AN/SSQ-36 Bathythermal, AN/SSQ-53G Directional Frequency Analysis and Recording (DIFAR) (passive), and AN/SSQ-62F Directional Command Activated Sonobuoy System (DICASS) (active) buoys. This was the first time Multi-static Active Coherent (MAC...