...frequent tactic was to cut their engines and float in almost silently on their prey. As this film shows, night ops were very risky, but the rewards could be huge, including the sinking of a 6,000-ton Katori class light cruiser by Lt. William B Sumpler, of VPB-33, for which he was awarded the Navy Cross. If you haven't stopped by Zeno's Drive-In before, we also feature 1940-45 vintage WWII ...