How did navies imagine using seaplanes in the open ocean?
Short answerThey generally did not after the First World War, preferring sheltered bases until helicopters made shipboard recovery practical.
NotesFirst World War experience had made routine open-ocean seaplane operations unattractive. Tenders were expected to support aircraft from sheltered harbors or nearby shore facilities. In the proposed alternative to the Courageous and Ark Royal submarine hunts, a tender could provide aircraft from a nearby base. Autogyros offered a limited interim possibility, and helicopters eventually displaced seaplanes in these shipboard roles.