more at http://www.thedrive.com/the-war-zone/25920/usmcs-huge-new-ch-53k-king-stallion-helicopter-has-not-so-tiny-problems-faces-more-delays The U.S. Navy says it's not sure when the U.S. Marine Corps will be able to declare initial operational capability with their new Sikorsky CH-53K...

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https://en.wikipedia.org/wiki/Tupolev_ANT-20 The Tupolev ANT-20 Maksim Gorki (Russian: ??????? ???-20 "?????? ???????") was a Soviet eight-engine aircraft, the largest of the 1930s. Its wingspan was similar to that of a modern Boeing 747, and was not exceeded until the 64.6 metre wingspan Douglas...