Did the Royal Navy consider turning heavy naval shells into bombs for Japan, and did it have an aircraft able to deliver them?
Short answerThe Navy had dive-bombing aircraft, especially the Blackburn Skua, but a purpose-built bomb made more sense than converting a one-ton shell.
NotesThe Royal Navy already had aircraft able to dive-bomb, making conversion of a one-ton naval shell less attractive when a purpose-built bomb existed. Air Ministry resistance to a naval dive bomber encouraged the Navy to describe the two-seat Skua as a fighter even though its bombsight and release gear defined its real purpose. The resulting aircraft performed poorly as a fighter because the requirement concealed the mission it was actually designed to fly.