Coast Guard One
Coast Guard One is the call sign of any United States Coast Guard aircraft carrying the president of [the United States]. Similarly, any Coast Guard aircraft carrying the vice president is designated Coast Guard Two.
, there has never been a Coast Guard One flight. Coast Guard Two was activated on September 25, 2009, when then-Vice President Joe Biden took a flight on CG 6019, an HH-60 Jayhawk helicopter, over the 2009 [Southeastern United States floods|recently flooded] Atlanta area.