Why VLS rearming at sea changes fleet endurance

VLS allows rapid firing and gives each missile an independent cell, so a fault in one launcher need not disable the others. Its endurance becomes a problem if ships cannot replenish those cells at sea during a dense missile campaign. One suggested compromise combines VLS for saturation attacks with reloadable swing-arm launchers that keep another weapon system available. The preferred alternative is a folding gantry built into the combatant itself, avoiding the time needed to transfer loading equipment from an auxiliary and return it afterward. A supply ship could offload missiles and move to the next warship while the first restocks its cells. Keeping the auxiliary alongside throughout every reload would lengthen the whole task group's replenishment cycle, especially in rougher seas. These are proposed ways to improve rearming, with the choice depending on practical fleet operations as well as launcher performance.