Sir Ernest Shackleton's polar ship, Endurance, was considered to be the strongest of its time but the vessel had significant ...
Sir Ernest Shackleton's ship, Endurance, was crushed by Antarctic sea ice and sank in November 1915. Emblematic of the heroic ...
The US Air Force (USAF) is wrapping up analysis meant to determine the service’s need from a future tanker aircraft. That evaluation includes factors such as runway requirements, fuel transfer ...
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