Acting Air Force Secretary Michael B. Donley formally takes the oath of office as the 22nd Secretary of the Air Force.
In 1941, Gen. Henry H. “Hap” Arnold of the then-U.S. Army Air Corps, personally reviewed a jet engine patented by Sir Frank Whittle flying on a Gloster E.28/39 aircraft. Impressed by its design, Arnold arranged for a Whittle engine to be brought back to the U.S. and tasked General Electric…