Which type of fuel is commonly used in naval ships?

Naval ships predominantly utilize Naval Distillate Fuel (F-76) and Navy Intermediate Fuel Oil (F-44) due to their specific properties that suit maritime operations. F-76 is a distillate fuel specifically formulated for use in naval diesel engines, ensuring optimal performance and compatibility with the ship's machinery. It has a lower viscosity and better cold flow characteristics compared to heavier oils, which allows for improved engine efficiency and easier handling in various temperature conditions.

F-44, on the other hand, is a heavier fuel oil that is used in larger engines, such as those found on many naval vessels. It provides the energy density necessary for long-distance operations and high-speed engagements. The combination of these fuels allows naval ships to operate with the efficiency and reliability required for military readiness.

While other fuel types like natural gas and biodiesel, as well as coal and heavy oil, may find use in different contexts, they are not the standard for naval ships. Natural gas, for example, poses storage and safety challenges on ships, while biodiesel is still under consideration and not broadly adopted due to variability in performance and availability. Coal has largely been phased out of use in modern naval operations due to its inefficiency and environmental concerns, and jet fuel