UVA of the day: SD40 Sea Cavalry Naval VTOL UAV

An unmanned aerial vehicle (UAV) takes off from the guided-missile destroyer Lanzhou (Hull 170) during a training exercise in late February, 2019. A destroyer flotilla composed of several guided-missile destroyers including Changsha (Hull 173) and Lanzhou (Hull 170) with the navy under the PLA Southern Theater Command recently conducted a three-day maritime training exercise in waters of the South China Sea. (eng.chinamil.com.cn/Photo by Yu Lin)