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San Francisco Maritime National Historical Park
Hercules
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| The steam tug Hercules, built in 1907, navigating on San Francisco Bay. |
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| STATS | | | Length | 151 feet | | Fuel type | Bunker C | | Beam | 26 feet | | Draft | 18 feet aft, 10 feet forward | | Gross tonnage | 409 | | Engine | 3 cylinder, triple expansion | | Cylinders | 17", 24", and 41" with 30" stroke. 500 Indicated Horsepower(ihp) | | Boiler | Scotch marine fire tube. 16' diameter, 11’9" long. Four, oil-burning furnaces |
- Hercules is a steam powered tug built for ocean towing
- The 151-foot ship, of riveted steel construction, still contains her original triple expansion steam engine
- Built on the East Coast in 1907, she towed her sister ship from Camden, New Jersey around South America to San Francisco
- Hercules also towed sailing ships, disabled vessels, barges, log rafts, a cassion (a steel structure used for closing the entrance to locks) for a dry dock at Pearl Harbor, and a cassion to help build a Panama Canal lock
- The tug usually carried a crew of three firemen, three oilmen, a chief and two assistant engineers, three deckhands, cook, two mates and a captain
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HERCULES (8 Photos)
Images of the steam powered tugboat Hercules
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Did You Know?
The Queen Mary 2, the largest ocean liner in the world (1,131 feet long), pulled into San Francisco Bay on February 4, 2007. Here she is passing by the San Francisco Maritime National Historical Park.
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Last Updated: August 01, 2007 at 12:37 EST |