Executive One

Executive One is the call sign designated for any United States civil aircraft when the President of the United States is on board. Typically, the President flies in military aircraft that are under the command of the Presidential Airlift Group, which include Air Force One, Marine One, Navy One, and others.

The Presidential Airlift group is part of Air Mobility Command's 89th Airlift Wing, based at Joint Base Andrews (formerly Andrews Air Force Base) near Camp Springs, Maryland in Prince George's County. On December 26, 1973, to "set an example for the rest of the nation during the current energy crisis" and to "demonstrate his confidence in the airlines", then-President Richard Nixon became the only sitting president to travel on a regularly scheduled commercial airline flight when he flew on a United Airlines DC-10 from Washington Dulles International Airport to Los Angeles International Airport. A Nixon aide carried a suitcase-sized secure communication device on board the plane, so that the President could remain in contact with Washington in the event of an emergency.

If the president's family members are aboard, but not the president himself, the flight can, at the discretion of the White House staff or Secret Service, use the callsign Executive One Foxtrot. "Foxtrot" is the phonetic alphabet designation for the letter "F", with that being the first letter of "family".

On January 20, 2009, the military helicopter that normally has the call sign "Marine One" was assigned the "Executive One" call sign when it took on George W. Bush, whose term as president had just expired. Executive One was also used as the call sign for the helicopter used to transport Barack Obama on January 20, 2017 after his presidency ended.

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