There are stark differences between the current Duration and the wartime version.
The groundbreaking Boeing 247 had a positive impact on the future of Boeing.
"At the peak of production in 1944, 16 B-17G Flying Fortresses were completed during each one-day 20-hour work shift."
North American built 9,800 B-25s between 1940 and 1945.
England produced one of the finest fighters of World War I, the S.E. 5A.
An even more ambitious metamorphosis saw a standard B-24D repeatedly modified by Consolidated.
Parks' bag of tricks included having students build aircraft that were used in the college's flight training program.
Commandos hauled freight across the United States for decades after World War II.
Just two Lockheed Constitutions were built.
In the history of the Air Force, the old Douglas C-1 of the 1920s was cast as a supporting player.