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Why was the USS Alaska built?
Alaska and Guam served with the U.S. Navy for the last year of World War II as bombardment ships and fast carrier escorts. The idea for a large cruiser class originated in the early 1930s when the U.S. Navy sought to counter the Deutschland-class “pocket battleships” being launched by Germany.
What did USS Alaska cost?
At $160 million this was seen as too costly, so a second study was conducted. This study left the forward batteries—the two 12-inch triple turrets and three of the 5-inch dual turrets—in place and added a reduced version of the first plan for the aft.
How long did it take to build ships in ww2?
Prefabrication was perfected, with complete deckhouses, double-bottom sections, stern-frame assemblies and bow units speeding production of the ships. By 1944, the average time to build a ship was 42 days. In all, 2,751 Liberties were built between 1941 and 1945, making them the largest class of ships built worldwide.
The Navy has 22 Ticonderoga-class cruisers (CG-52 through CG-73) in active service, as of the end of 2015. With the cancellation of the CG(X) program in 2010, the Navy currently has no cruiser replacement program planned.
Why did Liberty Ships fail?
The brittle fractures that occurred in the Liberty Ships were caused by low notch toughness at low temperature of steel at welded joint, which started at weld cracks or stress concentration points of the structure. External forces or residual stress due to welding progress the fracture.
Why were Liberty Ships so fast?
The speed at which Liberty Ships could be constructed allowed the US to build cargo vessels faster than German U-boats could sink them. This, along with Allied military successes against the U-boats, ensured that Britain and Allied forces in Europe remained well-supplied during World War II.
SAN DIEGO (KGTV) – The US Navy christened its newest ship Saturday morning, launching the USNS Harvey Milk in a ceremony in Barrio Logan. The ship is the second of six in the John Lewis class, all named after civil rights leaders. It will serve as a refurbishment ship, bringing fuel and supplies to other ships at sea.