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Willow Run Was the Biggest Factory
in the U.S. During WWII
Plans for Willow Run
It was bigger than the 3 other aircraft factories combined.
The B-24s were built by Ford, North American, Douglas and Consolidated.
Building B-24s at Willow Run
Willow Run Bomber Plant - Ypsilanti, MI
The airport was completed on December 4, 1941 - 3 days before the bombing of Pearl Harbor.
The factory was finished in January, 1942.
Willow Run Being Built
It had 2 ½ million square feet of floor space.
The Completed Factory
Charles Lindbergh called it “The Grand Canyon of the mechanized world”.
Willow Run was the largest producer of B-24s during WWII.
Willow Run made 47% of all B-24s constructed for the war.
Mass Producing B-24s
They could make a B-24 each hour.
From Ford to Army
A B-24 was completed every 59.34 minutes.
Wonder of War
The date it was achieved April 16, 1944.
Feb 16, 1942
It was the first airplane to be mass produced.
Sign for Ford's Bomber Plant
The cost to build a B-24 used to be $300,000 then dropped to $137,000 because of the efficiency at the plant.
Willow Run Assembly Line
Willow Run was the first factory to have a complete assembly line to construct airplanes.
It was ¾ of a mile long.
Willow Run made know-downs of the plane and shipped it to other companies to be fully constructed.
Willow Run received an Army-Navy "E" Citation for exceptional war work.
They earned it on May 4, 1945.
Production of B-24s
18,479 B-24s were produced in total by all the companies.
B-24s and Willow Run