What type of firefighting method is preferred for Otto Fuel II?

The preferred firefighting method for Otto Fuel II is finely dispersed water fog. This method is effective because the fine water droplets can effectively absorb heat and create a barrier to reduce oxygen concentration in the area of the fire. The fog also helps to cool the surfaces and prevents the fire from spreading, making it ideal for combating flammable liquid fires, including those involving Otto Fuel II, which is a type of monopropellant used in certain missile systems and can be challenging to extinguish due to its chemical properties.

Using finely dispersed water fog can minimize the risk of spreading the fuel or creating hazardous runoff, which is particularly important in a shipboard environment. This method contrasts with other types of extinguishing agents that may not be as effective against the specific characteristics of Otto Fuel II. Understanding the nature of the fuel, as well as the operational environment aboard an aircraft carrier, reinforces why water fog is the most appropriate choice in this situation.