Q&A · 1:30:05-1:32:29

A nuclear shell at Guadalcanal and real fleet spacing

A deliberately extreme counterfactual explains why dispersed formations would suffer blast, heat, water shock, and contamination differently from movie-style clustered fleets.

Question

What happens if a nuclear 16-inch shell detonates among the Japanese ships at Guadalcanal?

Short answer

Nearby ships are destroyed, while a dispersed formation still suffers heat, pressure, water shock, and radioactive seawater without suitable defenses.

Notes

Replacing an early Guadalcanal salvo with a nuclear 16-inch shell would destroy nearby Japanese ships, especially lightly built destroyers. The panel uses the scenario to correct the cinematic image of warships packed into one frame: real formations could place ships three or four kilometers apart. Vessels beyond the immediate explosion would still face heat, pressure, a powerful water wave, and radioactive spray across their decks. Crews of the period had no nuclear-defense procedures or washdown systems for that contamination. The imagined event therefore becomes a lesson in formation spacing and the multiple damage mechanisms of a nuclear burst at sea.