Air Force One : the aircraft of the modern U.S. presidency
"The presidential plane wasn't always known as Air Force One. The first potential presidential plane was a transport version of the four-engine B-24 Liberator heavy bomber specially modified for FDR and named Guess Where II. Later presidential aircraft included the Dixie Clipper and Sacred Cow (FDR), Independence (Truman), Columbine II and III (Eisenhower), followed by Air Force One. For the last sixty years, Air Force One has seen every presiden...