All ammunition larger than which caliber must have an automatic sprinkler system installed?

In the context of explosive safety on aircraft carriers, the requirement for an automatic sprinkler system is linked to the risk posed by larger caliber ammunition. Ammunition larger than 76 MM must have an automatic sprinkler system installed to mitigate the dangers associated with possible fire hazards.

The reasoning behind this requirement is that larger caliber munitions can produce more significant consequences if a fire were to occur. The installation of an automatic sprinkler system is crucial in suppressing fires, thereby enhancing the safety of personnel and equipment on the ship. Such systems are designed to respond quickly to heat, helping to control or extinguish fires before they escalate, which is particularly important in a confined and high-risk environment like an aircraft carrier.

In summary, the right choice is based on the understanding that larger munitions carry increased risks, necessitating more robust fire protection measures such as an automatic sprinkler system for effective safety management on board.