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英文维基：
“Between June 1931 and April 1938, Minas Geraes was totally reconstructed and modernized at the Rio de Janeiro Naval Yard. It was converted from its old coal–oil combination to all-oil firing. All eighteen of the original Babcock and Wilcox boilers were removed in favor of six new John I. Thornycroft & Company boilers. The former No. 1 boiler room and all twelve of the side coal bunkers were converted to fuel oil storage tanks; the upper coal bunkers were removed. In addition, Minas Geraes ' dynamos were replaced with new turbogenerators. The most striking aesthetic change was the trunking of the boiler uptakes into a single funnel. The fire-control systems that had been fitted after the First World War were also modernized in favor of Zeiss range-finders. The guns were overhauled; two extra 4.7 in (120 mm) guns were added (making 14 total), and six 20 mm (0.79 in) Madsen guns were installed, including two on the top of 'X' turret. The maximum elevation of the 12-inch guns was upped from 13° to 18°.[49][56]”
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发表于 2015-9-19 10:47
发表于 2015-9-20 11:08