Putting the main battery and directing positions ahead of the funnels reduces the chance of smoke obstructing the people aiming the guns. The proposed advantage of closely grouped guns is a simpler firing solution than for a battery spread across a pitching hull. Similar gun levels also reduce differences between the mounts' positions. Concentration carries a corresponding risk, because one serious hit could threaten much of the main armament.
Notable Point · 29:45-33:50
N3, smoke clearance, and concentrated fire control
The N3/G3-style layout puts guns and fire control ahead of the funnel, reducing smoke interference and simplifying a concentrated salvo.