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The most likely construction date of the ship is immediately after the winter of 1457/8. This date was obtained by oxygen isotope dendrochronology. An earlier standard dendrochronology study (measuring the width of annual growth rings) has given a likely felling date of 1449 for the majority of the timbers.
Newport News Shipbuilding ( NNS ), a division of Huntington Ingalls Industries, is the sole designer, builder, and refueler of aircraft carriers and one of two providers of submarines for the United States Navy. Founded as the Chesapeake Dry Dock and Construction Co. in 1886, Newport News Shipbuilding has built more than 800 ships, including ...
Aviation facilities. 2 × aircraft catapults. Helipad (later conversion) USS Newport News (CA–148) was the third and last ship of the Des Moines -class of heavy cruisers in the United States Navy. She was the first fully air-conditioned surface ship and the last active all-gun heavy cruiser in the United States Navy.
60,160 long tons, light ship; 464,691 long tons, full load; Length: LOA: 362.14 m (1,188.1 ft); Cidade de Macae 420 m (1,380 ft) LBP: 348.40 meters (1,143.0 ft) Beam: 69.49 m (227.99 ft) Draught: 22.810 m (74.84 ft) Depth: 28.96 m (95.01 ft) Propulsion: General Electric Steam Turbine: Speed: 15.5 knots
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
USNS. Newport. USNS Newport (T-EPF-12) is the twelfth Spearhead -class expeditionary fast transport and is operated by the United States Navy ' s Military Sealift Command. [2] [6] It is the fourth ship in naval service named after Newport, Rhode Island. [6] On 20 February 2020, USNS Newport was launched at Austal USA in Mobile, Alabama. [1]
Helicopter deck. USS Newport (LST-1179) was the third ship of the United States Navy (USN) to bear the name of the Rhode Island city. The first of her class of landing ship tanks (LST), she was capable of a sustained speed of 20 knots (37 km/h; 23 mph). Her ability to adjust her draft, accompanied by her unique bow-ramp design, helped bring a ...
USS Sumter (LST-1181) was the third of twenty Newport-class tank landing ships in service with the United States Navy, which replaced the traditional bow door-design tank landing ships (LSTs). Sumter was constructed by Philadelphia Naval Shipyard in Philadelphia, Pennsylvania and was launched in 1969.
A table or chart of nuclides is a two-dimensional graph of isotopes of the elements, in which one axis represents the number of neutrons (symbol N) and the other represents the number of protons (atomic number, symbol Z) in the atomic nucleus. Each point plotted on the graph thus represents a nuclide of a known or hypothetical chemical element.
Silicon (14 Si) has 23 known isotopes, with mass numbers ranging from 22 to 44. 28 Si (the most abundant isotope, at 92.23%), 29 Si (4.67%), and 30 Si (3.1%) are stable. The longest-lived radioisotope is 32 Si, which is produced by cosmic ray spallation of argon .