The Hughes H-4 Hercules
There are monster trucks on land, but what is its air force equivalent? In aerospace, this sets the bar for so-called monster planes. The Hughes H-4 Hercules was created for transatlantic flights in the Second World War. It was not finished in time to do its intended job, however. It only went on a single brief flight, but it is still the biggest flying boat. It also has the widest wingspan of any aircraft ever made.
The Hughes H-4 Hercules
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