USS Sapelo and the logistics of global reach

The Patoka-class oiler shows the US Navy learning to think beyond coastal and hemispheric operations. The Great White Fleet and First World War revealed that an oceanic fleet needed mobile fuel support, while Britain could rely more heavily on established bases, friendly ports, and imperial infrastructure. Tanker shortages still affected every major navy entering the Second World War. Sapelo's ten-and-a-half-knot speed made escort and route planning central to her survival. Her two five-inch guns also expose the difference between an armed auxiliary and a warship intended to fight.