The simulated German ship tries to exploit a two-knot advantage but cannot turn that margin into a decisive positional gain. The conclusion is specific to the tactical geometry: a small speed margin gives too little freedom to force the manoeuvre. Three or four knots would offer a better opportunity to cross the opponent's T. Speed matters because it determines whether a commander can dictate firing arcs and the relative bearing of the enemy line.
Notable Point · 8:58-9:48
Why two knots may not be enough to cross the T
A two-knot advantage does not automatically let a battle line cross an opponent's T, while three or four knots offers more tactical freedom.