Supermarine's unexpected naval aircraft proposals beyond the Spitfire

Supermarine's proposed aircraft extended well beyond the designs that entered service. One proposal was a twin-engined biplane with a monocoque fuselage, offered as an answer to the requirement associated with the Fairey Swordfish. It fits a recurring interest in persuading the Royal Navy to adopt a twin-engined aircraft. The carrier drawn beneath it appears fanciful: a fixed raised gun position on the flight deck would obstruct the clear working surface required for aircraft. A possible naval fighter is absent from the book, leaving that project unresolved.