ROANOKE, VA - SEPTEMBER 01: The World War II Era, Boeing B-17 nicknamed Memphis Belle is displayed on September 1, 2014 in Roanoke, Virginia. Though it is not the original Memphis Belle, the replica 1945 Boeing B17 Bomber aircraft gives the public the opportunity to understand the sacrifices World War II veterans made. The Memphis Belle is owned by the Liberty Foundation and travels to various cities to be on display and gives rides to the public. (Photo by Mark Wilson/Getty Images)