Harry Turtledove, Mr. Alternate History, is an unbelievably prolific writer, who turns out fat novels at a brisk clip. Given that output level, his batting average of about .600 is pretty good.
I'm currently reading Days of Infamy and End of the Beginning, a tale of WWII where the Japanese follow up the air raid on Pearl Harbor with landing a couple divisions of troops on Oahu. It's a pretty good read, and by the second book, you get a really good look at the whole "Arsenal of Democracy" thing. For example, bear in mind that between 1942 and 1945 the USA launched far more aircraft carriers than every nation on Earth, including the US, has launched outside of that three-year span.
Meanwhile, here in 2011, Congress just finished up awarding a contract for a next-generation tanker aircraft. It featured some nasty political logrolling, because the contract was supposed to guarantee tens of thousands of jobs in the congressional district that wound up building the 18-plane run.
18 planes. That wasn't quite a day's output at the Willow Run plant during WWII, where they churned out a bomber an hour...