The proposed Type 31 fit starts with a twin 57 mm mounting forward, although a twin 76 mm could be preferable. It retains two twin 40 mm positions and doubles the planned 30 mm guns as well. The existing hull remains the baseline, so the proposal concentrates on armament rather than a new ship. The resulting five twin mounts illustrate a preference for redundancy and concentrated close-range fire.
Notable Point · 2:27:29-2:28:18
Applying the twin-mount argument to Type 31
A general preference for twin mounts becomes a concrete Type 31 gun fit built around five paired positions.