News-Democrat & Leader - What does SS stand for on a boat? S.S. stands for Sailing Ship, which even though she had 2 diesel engines, she still qualifies as a sailing ship
![Firemen stand by aboard the fire boat SS JOHN H. GLENN JR. as it is used by the District of Columbia Fire Department to increase water pressure for fire fighters who are Firemen stand by aboard the fire boat SS JOHN H. GLENN JR. as it is used by the District of Columbia Fire Department to increase water pressure for fire fighters who are](https://cdn10.picryl.com/photo/1983/06/19/firemen-stand-by-aboard-the-fire-boat-ss-john-h-glenn-jr-as-it-is-used-by-the-5076d3-1600.jpg)
Firemen stand by aboard the fire boat SS JOHN H. GLENN JR. as it is used by the District of Columbia Fire Department to increase water pressure for fire fighters who are
![Liberty Ships and Victory Ships, America's Lifeline in War (Teaching with Historic Places) (U.S. National Park Service) Liberty Ships and Victory Ships, America's Lifeline in War (Teaching with Historic Places) (U.S. National Park Service)](https://www.nps.gov/articles/images/116img1bh.jpg?maxwidth=1200&autorotate=false)