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The Continental XI-1430 (often identified as the IV-1430) was a liquid-cooled aircraft engine developed in the United States by a partnership between the United States Army Air Corps (USAAC) and Continental Motors. It resulted from the USAAC's hyper-engine efforts that started in 1932, but never entered widespread production as it was not better than other available engines when it finally matured. In 1939, the I-1430-3 was designated as the engine to power the Curtiss XP-55, a radical pusher-engine fighter design that did not reach production. This I-1430-11 engine is in the collection of the National Air and Space Museum at the Smithsonian Institution in Washington, D.C.Photograph credit: Dane A. Penland
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periodic table
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Standard atomic weight Ar, std(E)[1]
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- ^ Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–291. doi:10.1515/pac-2015-0305.
- ^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
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