This Saturday and Sunday, October 1-2, 2016, there is going to be a World War I event at the National Museum of the US Air Force in Dayton, Ohio. Since the Ruritania story I'm working on takes place in the aftermath of (an alternate) World War I, this has me very excited, and I'm hoping to make it up there one of those days.
From the museum's website "The World War I Dawn Patrol Rendezvous features vintage original and reproduction WWI aircraft, radio-controlled models, era automobiles, period re-enactors, educational activities and a collector's show. This flying event is offered by the museum and the Great War Aeroplanes Association. FREE admission and parking." They're also going to have food trucks!