War Production. After the fall of France, President Franklin D. Roosevelt asked America to become the “arsenal of democracy.” American industry provided almost two-thirds of all the Allied military equipment produced during the war: 297,000 aircraft 193,000 artillery pieces
193,000 artillery pieces
two million army trucks
6 million tons of bombs
20 million rifles and other small arms
41 billion rounds of ammunition
1,500 naval vessels, 5,600 merchant ships, and 80,000 landing craft
At the end of the war, half of the world’s manufacturing capacity and two-thirds of its gold stocks were located in the United States
The quantity, the quality of the American output got off to a somewhat shaky start. American fighter aircraft at first were not the equal of Japanese planes in the Pacific. American tanks were never a one-on-one match for German tanks. Early troubles existed with torpedoes and other equipment and new technologies and weapon systems were sometimes slow in developing.
But by the middle of the war, qualitative as well as quantitative problems were being solved, and science and technology were enabling breakthroughs essential to the American war machine…
Civilian government agencies worked closely with industry and the military, and also with universities—developing what might be called the military-industrial-scientific academic complex
Many technological advances were made during the Liberty shipbuilding program. A steel cold-rolling process was developed to save steel in the making of lightweight cargo booms. Welding techniques also advanced sufficiently to produce the first all-welded ships. Prefabrication was perfected, with complete deckhouses, double-bottom sections, stern-frame assemblies and bow units speeding production of the ships. In all, 2,751 Liberties were built between 1941 and 1945, making them the largest class of ships built worldwide.
Shortest construction time to date; due to competition between shipyards; built in Richmond, California