Regan Brown
Cessna 210, also known as Centurion, is a high-performance load-hauler aircraft manufactured by Cessna. The aircraft has undergone several design changes and improvements since its introduction in the late 1950s, with the latest models being the most desirable. The fuel capacity of the Cessna 210 varies depending on the model and year. For instance, the 1961 Cessna 210A has a 65-gallon fuel tank, while the G, H, and J Turbo Centurion models have an 89-gallon fuel tank. The fuel capacity can also be increased with optional fuel tanks or aftermarket auxiliary tanks. In this text, we will explore the different fuel capacities of the Cessna 210 models and discuss the factors that affect their fuel efficiency.
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What You'll Learn
- The Cessna 210's fuel capacity varies by model, from 65 gallons to 120 gallons
- Cessna 210 models from 1967 onwards feature integral fuel tanks
- Fuel exhaustion is a common issue, often due to improper filling of the integral wing tanks
- The 210R is desirable due to its fuel system redesign, which fixed vapor-induced fuel-flow issues
- Fuel gauges on the Cessna 210 are unreliable, so operators must know how much fuel is on board
The Cessna 210's fuel capacity varies by model, from 65 gallons to 120 gallons
The Cessna Turbo 210 Centurion typically has a fuel capacity of 90 gallons, while the Cessna Pressurized 210 Centurion can carry up to 120 gallons of fuel. The 1985 and 1986 models, known as the P210R and 210R/T210R, offered optional fuel tanks that boosted the total usable fuel to 115 gallons.
The Cessna G, H, and J Turbo Centurions feature an 89-gallon fuel tank, while the N-suffix 210s, built from 1979 to 1984, have a fuel capacity of 89 gallons. The R models, which include the 310-hp nonturbo, 325-hp turbocharged, and 325-hp pressurized iterations, are considered the most desirable due to improved performance and the resolution of previous fuel system issues.
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Cessna 210 models from 1967 onwards feature integral fuel tanks
The Cessna 210 has a history of issues with its fuel system. The 1967 model, with its new integral fuel tanks, presented new challenges. The five structural ribs inside each tank can create a dam effect, impacting the flow of fuel to the outlet ports. Holes and passages at the bottom edges of the ribs are designed to allow fuel to pass through, but if these become restricted, the usable fuel is significantly reduced. Cessna 210 owners have also reported issues with sealant repairs, which can further reduce the actual fuel capacity by up to five gallons, or about 10% loss.
The turbo and pressurized 210 models produced before 1982 suffered from vapor problems, where the return from the injection system interrupted the flow of incoming fuel. Cessna attempted to address this issue by introducing catch basins below the floor to separate the vaporous return from the incoming fuel feed. However, this solution was not entirely successful, and flow interruptions continued to occur, especially on hot days. It was only in 1982 that Cessna largely resolved the vapor-induced fuel-flow fluctuations with a fuel-system redesign.
Despite these challenges, the Cessna 210 remains a desirable aircraft, with its later models, particularly the R models, considered the most sought-after due to their improved performance and resolved issues. The R models, introduced in 1985, boasted a fuel capacity of up to 120 gallons, and the upgraded P210R models offered even more, with a total usable fuel capacity of 115 gallons.
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Fuel exhaustion is a common issue, often due to improper filling of the integral wing tanks
Fuel exhaustion is a common issue with the Cessna 210, often due to improper filling of the integral wing tanks. This problem is particularly prevalent in the 1967 and newer models with cantilever wings and no struts. Cessna changed from a strutted wing design with bladder tanks to a cantilever wing structure with integral fuel tanks, also known as wet wings. The wing structure and external skins make up part of the tank, and inside each tank are five structural ribs that create a dam effect on the fuel as it flows to the outlet ports.
There are holes and passages at the bottom edges of the ribs designed to allow fuel to pass through to the outlet ports. Similar holes and passages at the top of the ribs allow air to escape during fuelling. If these holes and passages are blocked or restricted, the actual fuel capacity can be significantly reduced, resulting in fuel exhaustion. Repairs and multiple sealant attempts can also reduce the fuel capacity, as trapped air in the tank and extra unusable fuel at the bottom can lead to a loss of up to five gallons, or about 10% of the total fuel capacity.
To address this issue, it is recommended that operators implement methods to accurately determine the amount of fuel onboard the aircraft. Each tank should be filled, and the number of gallons added should be noted. Fuel pump gauges should be regularly calibrated, and after a few minutes, more fuel can be added to each tank to ensure they are truly full. Checking the fuel tank capacity and fuel level display is crucial, and draining fuel from the tanks can provide close-to-real-life results.
Additionally, Cessna 210 owners can top up the tanks in a specific sequence: top up the first tank, then the second, then return to the first, and finally the second. This helps ensure that the tanks are completely full. It is also important to be aware of the attitude of the airplane on the ground and the patience of the fueller, as the tanks may appear full when they are not.
The fuel system in the Cessna 210 has been a topic of much discussion among pilots and owners. While the early models had issues with vapor lock in the fuel lines and retractable gear, later models, especially the R models, are considered more desirable as most issues were resolved. The R models, introduced in 1982, featured a fuel-system redesign that addressed vapor-induced fuel-flow fluctuations in the turbo and pressurized models. They also had a "Both" position on the fuel selector and carried nearly 120 gallons of fuel.
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The 210R is desirable due to its fuel system redesign, which fixed vapor-induced fuel-flow issues
The Cessna 210 is a single-engine piston aircraft with retractable landing gear. Cessna produced over 9,000 210s from the late 1950s until 1986, during which time they made many engineering and aesthetic changes. The Cessna 210 has a range of 600-760 nautical miles, depending on the model. The 1961 Cessna 210A, for example, has a range of 700 nautical miles with a 65-gallon fuel tank.
The fuel capacity of the 210 series varies depending on the model. The 1961 210B had an optional fuel capacity of 84 gallons. The 1967 210/T210 model had two integral fuel tanks, with a total capacity of 89 gallons (45 gallons each). The improved R models carried nearly 120 gallons of fuel, with some models offering optional fuel tanks that boosted total usable fuel to 115 gallons.
The fuel capacity of the Cessna 210 has been a significant focus for operators and pilots due to concerns about fuel exhaustion. It is recommended that operators implement methods to confidently determine the amount of fuel on board the aircraft. This includes checking the fuel tank capacity and fuel level display and draining fuel from the tanks to determine the unusable fuel remaining in the tank.
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Fuel gauges on the Cessna 210 are unreliable, so operators must know how much fuel is on board
The Cessna 210 is a high-performance load-hauler that was produced from the late 1950s until 1986. Over the years, Cessna made several design changes, including increasing the fuel capacity. For instance, in 1961, the optional fuel capacity was increased to 84 gallons for the 210B model. In 1967, Cessna changed from a strutted wing design with bladder tanks to a cantilever wing structure with integral fuel tanks, also known as a wet wing. This new design featured two 45-gallon tanks (89 gallons usable).
While the Cessna 210 has undergone various improvements, it has also faced challenges with its fuel system. The early models, particularly the turbo and pressurized 210s before 1982, suffered from vapor problems that interrupted the flow of incoming fuel. This issue was addressed in later models with the addition of a dedicated vapor-return line and larger-diameter fuel-feed lines. However, even with these improvements, some 210 owners have experienced fuel exhaustion due to improper filling of the integral wing tanks.
It is important to note that the fuel gauges on the Cessna 210 are unreliable. The aircraft is an antique, and variations during the build process and decades of operation and maintenance have contributed to inaccuracies in the fuel gauges. Therefore, operators must know with confidence how much fuel is on board the aircraft at all times. To ensure accurate fuel readings, operators should follow certain procedures. Each tank should be filled, and the number of gallons added should be noted. After about five minutes, more fuel can be added to each tank, and the additional amount should be recorded. By doing this, operators can have a better understanding of the actual fuel capacity of their tanks.
Additionally, it is recommended to check the fuel pump gauges at the fuel farm or fuel truck, as these are required to be calibrated at regular intervals. Another way to mitigate the issue of inaccurate fuel gauges is to top up the tanks in a specific order: fill the first tank, then the second, then return to the first, and finally the second tank. This helps ensure that the tanks are truly full. It is also important to calibrate the fuel system, specifically the empty position, so that the gauges accurately read empty when the tanks are empty. Checking the fuel tank capacity and fuel level display is crucial, regardless of the aircraft model.
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Frequently asked questions
The fuel capacity of the Cessna 210 depends on the model. The 1961 Cessna 210A has a 65-gallon fuel tank, while the G, H, and J Turbo Centurion models have an 89-gallon tank. The Cessna 210 Centurion typically has a 90-gallon fuel capacity, but some models have a capacity of up to 115 gallons.
It's important to note that the actual fuel capacity of a Cessna 210 may be affected by various factors. For example, sealant repair attempts and blocked ribs in the fuel tank can reduce the usable fuel capacity by up to 5 gallons. Additionally, improper filling of the integral wing tanks can result in the tanks appearing full when they are not.
To accurately determine the fuel capacity of your Cessna 210, it is recommended to check the fuel tank capacity and fuel level display. You can drain the fuel from the tanks through the fuel line in the wheel well to get close to real-life results. This will leave the unusable fuel in the tank, and you can then turn the fuel selector to any position other than "BOTH" to prevent fuel migration between tanks.
