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US presidential helicopters / Marine One | VH-3D Sea King | VH-60N White Hawk | MV-22 Osprey

Marine One is the call sign of any United States Marine Corps aircraft carrying the president of the United States. It usually denotes a helicopter operated by Marine Helicopter Squadron One ...
Interesting Engineering on MSN

China’s new drone helicopter seen operating from Type 075 amphibious warship

A newly revealed autonomous helicopter has been spotted operating aboard one of China’s largest ...