German preparations delayed submarine production to support landing-craft construction. Germany shifted toward attacks on London after deciding the RAF was defeated, although the RAF had not actually been defeated. Even believing the RAF beaten would leave the question of whether the Luftwaffe could contain the Royal Navy. Britain could be expected to commit its available forces against an invasion, with more resources to draw on than Germany had for the crossing. Accounts of a successful Sea Lion are criticized here for relying on British leaders failing to use those resources sensibly.
Notable Point · 18:13-19:45
Landing-craft production and the limits of air superiority
Sea Lion diverted effort from U-boats, while claims of RAF defeat still left the Royal Navy and Britain's wider resources to confront.