Katerina Swanson
During World War II, the US Navy used diesel fuel, which was the primary fuel for landing craft and locomotives. The US Navy's use of diesel fuel was due to its logistical convenience, as it was the same fuel used by other vehicles such as trucks and cars. The US Navy's battleships, such as the USS Iowa, had impressive fuel efficiency, consuming 9000+ gallons of fuel per hour. The choice of diesel fuel by the US Navy contributed to the widespread use of diesel engines in ships and vehicles post-WW2.
| Characteristics | Values |
|---|---|
| Diesel usage by Navy | The US, British, and German navies used gasoline and residual fuel oil, while the Soviets used distillate fuel oil (diesel) for their tanks. |
| Diesel usage post-WWII | Ships started burning 'diesel fuel marine' post-WWII, which burns cleaner and gives more power. |
| Diesel usage by US Navy | The US Navy used diesel in some cases, such as in a WW-2 US military road grader. |
| Reasons for not using diesel | Producing mechanized vehicles that used the same fuel simplified logistics. Adding diesel to the supply chain would have complicated resupply. Gas engines used less metal to produce and used more abundant fuel. |
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What You'll Learn
The US Navy used diesel fuel for landing craft and locomotives
During World War II, the US Navy used diesel fuel for landing craft and locomotives. The USS Maumee (AO-2), constructed between 1913 and 1916, was the first surface ship in the U.S. Navy to be powered by diesel engines. These engines were built at the New York Navy Yard.
The use of diesel engines in naval vessels offered several advantages. Firstly, diesel fuel was more economical than gasoline, costing only half as much. Secondly, diesel engines had a higher thermal efficiency than gasoline engines, reaching up to 40% compared to 25% for the best gasoline engines of that time.
Post-World War II, ships started burning 'diesel fuel marine', which offered improved performance with cleaner burning, higher power output, and less smoke. This fuel is similar to the diesel fuel used in trucks today.
The US Navy's use of diesel fuel and engines during World War II and beyond showcases the importance of fuel efficiency, cost-effectiveness, and technological advancements in naval operations.
It is worth noting that the US Navy's experience with diesel during World War II also influenced their post-war decisions. In the 1950s, the Navy explored the potential of diesel aviation, recognizing the advantages of diesel's higher thermal efficiency and lower fuel cost for aircraft use. This exploration demonstrates a continued interest in optimizing fuel choices for their fleet.
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Gas engines used less metal and less fuel to produce
During World War II, the US Navy primarily used diesel fuel for their warships, while the US Army relied on gasoline. The US Navy's use of diesel fuel was a result of their warships being equipped with diesel engines, which offered several advantages over gasoline engines.
Gas engines, however, used less metal and less fuel to produce. They also used fuel that was more abundant, and for vehicles, gasoline was more convenient as it allowed for a quick start and immediate use. For land-based combat vehicles, diesel engines of that era were slower to start and take off than gas-powered ones. This difference in startup time was due to a lower compression ratio in diesel engines, which made cranking easier but required a gasoline startup.
The US Navy's decision to use diesel fuel was also influenced by logistical considerations. Producing mechanized vehicles that all used the same fuel simplified logistics. Introducing diesel fuel into the supply chain would have complicated the resupply of forces in the field. Additionally, gasoline was widely used in the US for cars, trucks, and planes, so using the same fuel for military vehicles streamlined the process.
The US Navy's choice of diesel fuel for their warships during World War II was a result of the advantages offered by diesel engines, as well as logistical considerations. While gas engines used less metal and fuel, the specific requirements and context of naval operations influenced the decision to prioritize the benefits of diesel engines and fuel.
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Gasoline was used by the US and Britain
During World War II, the US and Britain primarily relied on gasoline and residual fuel oil to power their vehicles and machinery. This included cars, trucks, planes, and ships. While diesel fuel offered certain advantages, such as greater torque and durability, gasoline was more abundant and better suited for vehicles that required quick starts and acceleration. Additionally, gasoline-powered engines used less metal to produce and having a single fuel type for all machinery simplified logistics and fuel supply chains.
The US, in particular, had a significant impact on global oil production and supply during the war. In 1944, US military usage accounted for about 29% of the country's oil production, or just over 520,000 barrels per day. However, because the US supplied oil to other Allied nations, the actual proportion of US oil used for military purposes may have been lower.
While diesel fuel was less commonly used by the US and British militaries, it found specific applications, such as in naval vessels and railroads. Some US Navy ships during World War II utilized diesel engines, benefiting from their efficiency and reliability. However, these ships still primarily burned fuel oil, with diesel serving as a supplementary fuel source.
The Soviet Union, on the other hand, made more extensive use of diesel fuel during the war. Their tanks, for instance, often ran on diesel, showcasing their understanding of the advantages of diesel engines over gasoline engines. The Soviets also had diesel-fuelled aircraft, such as the Pe-8 and Yer-2 bombers.
The choice of fuel during World War II was influenced by various factors, including fuel availability, engine performance, production capabilities, and logistical considerations. While gasoline was the predominant fuel for the US and Britain, diesel fuel played a supporting role, particularly in naval applications.
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Diesel fuel was common in the US Navy
During WWII, the U.S. Navy utilized diesel engines in newer ships, while older vessels from the post-World War I era relied on steam turbines fueled by coal or oil, resulting in higher smoke output. The Kriegsmarine also experimented with diesel propulsion, as evident in their destroyer Z51, which required six 24-cylinder diesel engines. However, this ship was unfortunately sunk in an air raid before it entered active service.
Post-WWII, ships started adopting "diesel fuel marine" or "DFM," which burns cleaner, delivers more power, and resembles diesel fuel used in trucks. This transition to DFM by the Navy occurred around 1970. The use of diesel fuel offered advantages such as lower cost and higher thermal efficiency compared to gasoline.
The Navy's interest in diesel extended beyond naval vessels to aircraft as well. In the April 1955 volume of "Diesel Wings In The Navy's Future", the advantages of diesel aviation were highlighted, including its lower cost and higher thermal efficiency compared to gasoline. However, diesel engines faced challenges in aircraft applications due to their weight and complex fuel injection systems, especially at varying altitudes. Despite these hurdles, the Navy recognized the potential advantages of diesel power plants for aircraft.
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Diesel fuel burns cleaner and gives more power
During World War II, the US Navy primarily used distillate fuel oil, which is similar to diesel fuel. This fuel was also used by the railroads. While gasoline was more widely used by the US military, diesel fuel offered several advantages, including better fuel efficiency and reliability.
Post-WWII ships started burning 'diesel fuel marine', which burns cleaner and provides more power. This type of fuel is similar to diesel fuel used in trucks. The use of diesel fuel marine reduced smoke emissions from ships, as smoke output is directly related to the fuel burned and the fuel-air mixture. Warships in WWII would sometimes intentionally produce large amounts of smoke as a screen to hide from enemies.
The use of diesel fuel marine also improved engine performance. Diesel fuel has a higher energy density than gasoline, which translates to more power and better fuel efficiency. This is especially beneficial for ships that consume thousands of gallons of fuel per hour.
Additionally, diesel fuel is less combustible than gasoline. This safety feature is crucial in combat situations, as diesel fuel tanks are less likely to explode when hit by enemy shells. This was a significant advantage for the Soviet tanks during the war, as they primarily used diesel engines.
While gasoline was more widely used during WWII, likely due to logistical considerations and the abundance of fuel sources, the advantages of diesel fuel were recognised. The switch to diesel fuel marine post-WWII improved power, fuel efficiency, and reduced smoke emissions for naval vessels.
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Frequently asked questions
The US Navy used Diesel Fuel Marine (F-76).
Diesel fuel was used by the US Navy because it was the primary fuel for landing craft and locomotives during World War 2.
Yes, the US Navy also used residual fuel oil, also known as bunker fuel, in their ships.
Yes, the Japanese Navy used diesel engines in their Type 89 I-Go, Type 95 Ha-Go, and Type 97 Chi-Ha tanks. The German Navy also used diesel fuel.
Some countries, like the US, Britain, and Germany, favored gasoline engines due to logistical simplicity, industrial factors, and better power-to-mass ratios.
