Q&A · 2:07:29-2:08:33

How battleships aimed at a moving future position

Battleship fire control predicted where a moving target would be when the salvo arrived, using mechanical tables and repeated calculations rather than aiming at its current position.

Question

Do battleships aim at a point or a line segment when firing at a moving target?

Short answer

They calculate the future point where the target should be when the shells arrive, using mechanical fire-control computers to update the solution.

Notes

The firing ship, target, and shell are all moving during the projectile's flight. Fire-control teams therefore calculated a future intercept point from range, bearing, speed, and course instead of treating the target as a fixed line segment. Mechanical fire-control tables acted as rudimentary computers that continuously processed those inputs. Their purpose was to make a difficult mathematical prediction repeatable while reducing the number of human errors introduced into the firing solution.