What is Marine One called when the president is not on it?

What is Marine One called when the president is not on it? 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 (HMX-1) “Nighthawks”, consisting of either the large Sikorsky VH-3D Sea King or … Continue reading What is Marine One called when the president is not on it?