By: Sylvia RinconAir Force One is the official call sign for the airplane the U.S. Air Force uses to transport the President. But, there is also a fleet of planes used to fly everyone from the Vice President to the Secretary of State.Each plane requires a team of flight attendants. There are only 250 airmen assigned to the elite and coveted mission.Every single one is trained right here in San Antonio and Joint Base San Antonio Lackland A.F.B.The rigorous course takes place at a hanger at the 344th Training Squadron hanger were mock Air Force One serves as an intimidating but vital part of their training.