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SS President Coolidge
SS President Coolidge was an American ocean liner that was completed in 1931. She was operated by Dollar Steamship Lines until 1938, and then by American President Lines until 1941. She served as a troopship from December 1941 until October 1942, when she was sunk by mines in Espiritu Santo in the New Hebrides at the Espiritu Santo Naval Base, part of current-day Vanuatu. President Coolidge had a sister ship, SS President Hoover, completed in 1930 and lost when she ran aground in a typhoon in 1937.
Dollar Lines ordered both ships on 26 October 1929. The Newport News Shipbuilding and Drydock Company of Newport News, Virginia built the two ships, completing President Hoover in 1930. The keel for President Coolidge was laid 22 April 1930 and the ship was delivered 1 October 1931. They were the largest merchant ships built in the United States up to that time. Each ship had turbo-electric transmission, with a pair of steam turbo generators generating current that powered propulsion motors on the propeller shafts. Westinghouse built the turbo generators and propulsion motors for President Coolidge but General Electric built the turbo generators and propulsion motors for President Hoover.
In the President Coolidge twelve Babcock & Wilcox superheater type water tube boilers provided steam for main and auxiliary power. Main power was generated by two Westinghouse 10,200 kilowatt turbine generator sets that normally each drove two 400 volt Westinghouse 13,200 horsepower synchronous motors directly connected to the two screws. If necessary the linkages were present so both motors and screws could be driven by either one of the two generator sets.
Only the boiler feed and main lubricating pumps, driven directly from the steam turbines, were not electrical. Those included everything from cargo winches and other ship's auxiliary machinery to 365 Westinghouse stateroom fans. The 180 ship's auxiliary motors ranged from a tenth horsepower to the 13,250 horsepower main motors. The ship had 67,000 cubic feet (1,897.2 m3) refrigerated cargo space. President Coolidge was initially designed for 350 first class, 150 "special" or intermediate class passengers with space for 1,260 passengers of all classes and a crew of 300.
The ship was launched on 21 February 1931 after Mrs. Calvin C. Coolidge broke a bottle of water that came from a brook on the Coolidge farm in Vermont on the bow.
President Hoover and President Coolidge ran between San Francisco and Manila via Kobe and Shanghai, and some round the World voyages that continued from Manila via Singapore, the Suez Canal, the Mediterranean Sea, New York City, the Panama Canal and thence back to San Francisco.
President Hoover and President Coolidge were aimed at holiday makers seeking sun in the Pacific and Far East. Passenger luxuries included spacious staterooms and lounges, private telephones, two saltwater swimming pools, a barbers' shop, beauty salon, gymnasium and soda fountain.[citation needed] President Coolidge broke several speed records on her crossings between Japan and San Francisco.[citation needed]
In December 1937 President Hoover ran aground on the Taiwanese coast and was declared a total loss. Dollar Steamship Lines was increasingly in debt, and in June 1938 President Coolidge was arrested for an unpaid debt of $35,000. She was released in bond for a final trans-Pacific voyage, and then Dollar Lines was suspended from operation. In August 1938 the United States Maritime Commission reorganised the company as American President Lines, which then ran the former Dollar Lines fleet until the Second World War.
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SS President Coolidge
SS President Coolidge was an American ocean liner that was completed in 1931. She was operated by Dollar Steamship Lines until 1938, and then by American President Lines until 1941. She served as a troopship from December 1941 until October 1942, when she was sunk by mines in Espiritu Santo in the New Hebrides at the Espiritu Santo Naval Base, part of current-day Vanuatu. President Coolidge had a sister ship, SS President Hoover, completed in 1930 and lost when she ran aground in a typhoon in 1937.
Dollar Lines ordered both ships on 26 October 1929. The Newport News Shipbuilding and Drydock Company of Newport News, Virginia built the two ships, completing President Hoover in 1930. The keel for President Coolidge was laid 22 April 1930 and the ship was delivered 1 October 1931. They were the largest merchant ships built in the United States up to that time. Each ship had turbo-electric transmission, with a pair of steam turbo generators generating current that powered propulsion motors on the propeller shafts. Westinghouse built the turbo generators and propulsion motors for President Coolidge but General Electric built the turbo generators and propulsion motors for President Hoover.
In the President Coolidge twelve Babcock & Wilcox superheater type water tube boilers provided steam for main and auxiliary power. Main power was generated by two Westinghouse 10,200 kilowatt turbine generator sets that normally each drove two 400 volt Westinghouse 13,200 horsepower synchronous motors directly connected to the two screws. If necessary the linkages were present so both motors and screws could be driven by either one of the two generator sets.
Only the boiler feed and main lubricating pumps, driven directly from the steam turbines, were not electrical. Those included everything from cargo winches and other ship's auxiliary machinery to 365 Westinghouse stateroom fans. The 180 ship's auxiliary motors ranged from a tenth horsepower to the 13,250 horsepower main motors. The ship had 67,000 cubic feet (1,897.2 m3) refrigerated cargo space. President Coolidge was initially designed for 350 first class, 150 "special" or intermediate class passengers with space for 1,260 passengers of all classes and a crew of 300.
The ship was launched on 21 February 1931 after Mrs. Calvin C. Coolidge broke a bottle of water that came from a brook on the Coolidge farm in Vermont on the bow.
President Hoover and President Coolidge ran between San Francisco and Manila via Kobe and Shanghai, and some round the World voyages that continued from Manila via Singapore, the Suez Canal, the Mediterranean Sea, New York City, the Panama Canal and thence back to San Francisco.
President Hoover and President Coolidge were aimed at holiday makers seeking sun in the Pacific and Far East. Passenger luxuries included spacious staterooms and lounges, private telephones, two saltwater swimming pools, a barbers' shop, beauty salon, gymnasium and soda fountain.[citation needed] President Coolidge broke several speed records on her crossings between Japan and San Francisco.[citation needed]
In December 1937 President Hoover ran aground on the Taiwanese coast and was declared a total loss. Dollar Steamship Lines was increasingly in debt, and in June 1938 President Coolidge was arrested for an unpaid debt of $35,000. She was released in bond for a final trans-Pacific voyage, and then Dollar Lines was suspended from operation. In August 1938 the United States Maritime Commission reorganised the company as American President Lines, which then ran the former Dollar Lines fleet until the Second World War.