Question: During the USS Indianapolis speech, Quint says a "big fat PBY" came to pick them up. Whats a PBY? The_Iceman
Answer: He's talking about a Consolidated PBY Catalina, which was an amphibious plane (meaning it could land on water) used in WWII. PB stands for Patrol Bomber (the Y designated the manufacturer, Consolidated Aircraft).
Bishop73