A standard salvo used twenty-eight rockets, each meant to contribute a roughly thirty-meter-wide section to a cumulative barrier that could damage an aircraft passing through it. The effect ended almost as soon as the charges fired because an explosion could not remain in place as a persistent obstacle. Crews had to predict the future positions of both ship and attacker, then place a barrier that disappeared at once. The concept was logical on paper but unforgiving in combat conditions.
Notable Point · 41:59-45:25
A flame barrier is brief and hard to place
Even a full Type 4 salvo created only a short-lived barrier, leaving ships to solve a difficult interception calculation against moving aircraft.