Question: What is a Liberty ship?
Answer: Liberty ships were simple, standardized cargo steamers that could be mass-produced cheaply and quickly using assembly-line methods, and could easily be converted to individual military service needs.
Bonus info: When war broke out in Europe in September 1939, America’s merchant fleet was unprepared to handle a massive sealift of war material. President Franklin Roosevelt decided to increase the production of ships and also provide ships to America’s British allies. This decision resulted in the emergency fleet program, which introduced the assembly-line production of standardized ships, known as Liberty ships.