After spending years sitting in waiting, President George H.W. Bush's custom-painted train Bush 4141 will take him on a final ride. Painted to resemble Air Force One, Union Pacific railroad honored President Bush with Bush 4141 back in 2005.Unlike other engines on the rails, Bush 4141 is the only one to have ever been driven by its namesake and a former U.S. president.Michael Iden, who worked closely with the crew to create Bush 4141, was aboard the historic ride in 2005.Iden said Bush requested to take a tour of the locomotive a day after it was dedicated to him."The president looked at us and said with a smile on his face, 'Do you mind if I take it on a drive?'" Iden said.After a brief lesson, Bush took control of the train and went on his first ride.Since then, Bush 4141 has been in storage.