Warship Builders is the first scholarly study of the U.S. naval shipbuilding industry from the early 1920s to the end of World War II, when American shipyards produced the world's largest fleet that helped defeat the Axis powers in all corners of the globe. A colossal endeavor that absorbed billions and employed virtual armies of skilled workers, naval construction mobilized the nation's leading industrial enterprises in the shipbuilding, engineering, and steel industries to deliver warships whose technical complexity dwarfed that of any other weapons platform. Based on systematic comparisons with British, Japanese, and German naval construction, Thomas Heinrich pinpoints the distinct features of American shipbuilding methods, technology development, and management practices that enabled U.S. yards to vastly outproduce their foreign counterparts. Throughout the book, comparative analyses reveal differences and similarities in American, British, Japanese, and German naval construction. Heinrich shows that U.S. and German shipyards introduced electric arc welding and prefabrication methods to a far greater extent than their British and Japanese counterparts between the wars, laying the groundwork for their impressive production records in World War II. While the American and Japanese navies relied heavily on government-owned navy yards, the British and German navies had most of their combatants built in corporately-owned yards, contradicting the widespread notion that only U.S. industrial mobilization depended on private enterprise. Lastly, the U.S. government's investments into shipbuilding facilities in both private and government-owned shipyards dwarfed the sums British, Japanese, and German counterparts expended. This enabled American builders to deliver a vast fleet that played a pivotal role in global naval combat.

Updated 12/10/2020: In December 2016, the Navy released a force-structure goal that callsfor achieving and maintaining a fleet of 355 ships of certain types and numbers. The 355-shipgoal was made U.S. policy by Section 1025 of the FY2018 National Defense AuthorizationAct (H.R. 2810/P.L. 115- 91 of December 12, 2017). The Navy and the Department of Defense(DOD) have been working since 2019 to develop a successor for the 355-ship force-level goal.The new goal is expected to introduce a new, more distributed fleet architecture featuring asmaller proportion of larger ships, a larger proportion of smaller ships, and a new third tier oflarge unmanned vehicles (UVs). On December 9, 2020, the Trump Administration released a document that can beviewed as its vision for future Navy force structure and/or a draft version of the FY202230-year Navy shipbuilding plan. The document presents a Navy force-level goal that callsfor achieving by 2045 a Navy with a more distributed fleet architecture, 382 to 446 mannedships, and 143 to 242 large UVs. The Administration that takes office on January 20, 2021,is required by law to release the FY2022 30-year Navy shipbuilding plan in connection withDOD's proposed FY2022 budget, which will be submitted to Congress in 2021. In preparingthe FY2022 30-year shipbuilding plan, the Administration that takes office on January 20,2021, may choose to adopt, revise, or set aside the document that was released on December9, 2020. The Navy states that its original FY2021 budget submission requests the procurement ofeight new ships, but this figure includes LPD-31, an LPD-17 Flight II amphibious ship thatCongress procured (i.e., authorized and appropriated procurement funding for) in FY2020.Excluding this ship, the Navy's original FY2021 budget submission requests the procurementof seven new ships rather than eight. In late November 2020, the Trump Administrationreportedly decided to request the procurement of a second Virginia-class attack submarinein FY2021. CRS as of December 10, 2020, had not received any documentation from theAdministration detailing the exact changes to the Virginia-class program funding linesthat would result from this reported change. Pending the delivery of that information fromthe administration, this CRS report continues to use the Navy's original FY2021 budgetsubmission in its tables and narrative discussions.