The game action pauses on the geometry behind the rapidly worsening result. Naval fire-control systems were designed to hit one moving ship from another moving ship using visual observations and estimates of relative motion. Once Bismarck is barely moving, much of that target-motion problem disappears and the British ships can maintain a steadier solution. The simulation simplifies real combat, but the moment illustrates why mobility and steering damage can be tactically decisive before a ship sinks.
Notable Point · 30:39-31:07
Why a stopped target becomes easier to hit
The simulated Bismarck's loss of motion illustrates why visual fire-control solutions become much simpler once a target stops manoeuvring.