Could a 6:6:4:2:2 treaty ratio with eighteen capital ships and a 39,000-ton limit have worked?
Short answerPossibly, but acceptance would depend on US security concerns and French and Italian resistance to their reduced shares.
NotesThe ratio could be written, but France and Italy would lose relative standing and the United States might still doubt that eighteen ships provided enough security. Britain could retain its fifteen-inch fleet and build three new ships, with a 39,000-ton limit likely rounded to 40,000 for ease of negotiation and design.