The Ask An Expert lecture series at the Steven F. Udvar-Hazy Center is presented every 2nd and 4th Thursday at 12:30 PM. A Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum. In 1956 the Iroquois, commonly known as the Huey, first flew as an Army replacement for the H-13 medevac helicopter of Korean War fame. How to attend