When Henry J. Kaiser came up with the idea to replace welding with rivets, the Richmond Shipyard was able to turn out a ship a day, which used to take a month.
The fastest destroyer was built in a week.
Additional
Liberty ships were merchant ships produced during WW II. On average 3 of these finished production each day The average time to build them was 42 days nationally, and 2 weeks at Kaiser shipyards. The fastest Liberty ship build was the Robert E. Peary in 4 days, 15 hours, and 29 minutes as a publicity stunt. This was built at Kaiser's Richmond shipyard.
18
ships
There were 2 North Carolina class ships completed in the late 30's, 4 South Dakota class ships completed in the early part of WW2, and the 4 Iowa class ships completed in 1943-44... so depending on your exact timeframe, approximately 10 that were completed. Additionally, there were 2 more Iowa class ships that were never completed, and 4+ Montana class ships that were never built (basically enlarged Iowas with an extra turret, lower speed, and thicker armor)
to many
He was Truman before ww2, and during ww2. sometime after ww2, he died.
18
Approximately 14,235 Hurricanes were built in total but many were built before WW2.
During WW2 the US Navy built 126 submarines.
ships
cars built during WW2
Women in WW2 made aircraft, riveted ships, built bombs and shells, drove ambulances and worked in farms. They performed magnificently.
Radar was first put on ships during WW2.
Germany during WW2
Sometime during ww1 then rebuilt in ww2
In Stratford, Connecticutt
more than 50 000 shermans were buildt during ww2
During WW2, but the first was not built until 1948.