The Soviet-era Foxtrot class (Project 641) diesel-electric submarine stood grounded at a dock in Sevastopol for years without repair and became a symbol of the demise of Ukraine’s navy. Russian engineers repaired and serviced the submarine and a crew of Ukrainian submariners was trained at Russian naval bases. “The sea trials of the Zaporozhye submarine is an important event for the Ukrainian navy,” Defense Minister Dmytro Salamatin said. The trials will test the submarine’s power plant and other key equipment while sailing on surface. Though the submarine was built 40 years ago, the vessel has been upgraded with new equipment and will certainly raise the combat capability of the Ukrainian navy.