It amazed everyone. We started the war with 3 aircraft carriers. We ended the war with 51 aircraft carriers and 71 escort carriers. We produced 15,000 P-47’s and 15,000 P-51’s alone.
The most mass-produced Soviet fighter was the Yak-9 and they built 17,000 of them.
On 7 December 1941, the U.S. Navy had seven aircraft carriers
By war’s end in 1945, the United States Navy had added twenty-seven aircraft carriers