Katerina Swanson
The Cessna 172 is a four-seat, single-engine piston aircraft that has played a significant role in aviation history. It was first flown in 1955 and has remained popular for nearly seven decades. The aircraft has two fuel tanks, with one tank mounted in each wing. The Cessna 172's fuel system has been designed to prevent fuel contamination, with fuel supply lines in the tanks featuring a mesh screen to eliminate sediment. The total fuel capacity of the Cessna 172 is 56 gallons, although only 53 gallons of fuel is usable.
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What You'll Learn
- The Cessna 172's fuel capacity is 56 gallons, but only 53 gallons are usable
- The aircraft has two fuel tanks, one in each wing
- The Cessna 172's endurance and popularity have made it the most successful aircraft in history
- The fuel system is designed to prevent fuel contamination
- The Cessna 172's engine power can be modified to increase from 180 to 210 hp
The Cessna 172's fuel capacity is 56 gallons, but only 53 gallons are usable
The Cessna 172 is a four-seat, single-engine piston aircraft with a high fixed wing. It has been in use since 1955 and is popular for flight training and personal use. The Cessna 172S, a variant of the Cessna 172, has a fuel capacity of 56 gallons, split evenly between two tanks, with 28 gallons in each tank. However, only 53 gallons of fuel are usable. This is because the lines that draw fuel to the engine are slightly above the bottom of the tanks, preventing the engine from drawing contaminants that may have settled at the bottom. This unusable fuel is still included in the basic empty weight of the aircraft.
The Cessna 172S was introduced in 1998 and is an upgraded version of the Cessna 172. It features a Lycoming IO-360-L2A engine with 180 horsepower, an increase from the previous versions. The maximum engine rpm was also increased from 2,400 rpm to 2,700 rpm, resulting in a 20 hp increase. As a result of these upgrades, the maximum takeoff weight of the Cessna 172S was increased to 2,550 lb.
The Cessna 172 has a unique fuel system compared to other low-wing aircraft. Its fuel selector valve can be placed in a "both" position, allowing fuel to flow from both the left and right tanks simultaneously. This feature provides redundancy in the fuel system and improves the aircraft's endurance. Additionally, the high-wing design of the Cessna 172 allows gravity to play a significant role in pressurizing the fuel system, reducing the reliance on fuel pumps.
The Cessna 172 has played a significant role in aviation history and is known for its endurance and popularity. It has been modified over the years to enhance its performance and functionality. For example, optional long-range 52-gallon wing fuel tanks were offered for the 1968 model, and the 1974 model introduced the Skyhawk II, which offered higher standard equipment and improved features.
The Cessna 172's "useful load" includes the weight of fuel, passengers, and baggage that can be carried while adhering to the certified maximum gross weight. Pilots must carefully plan each flight to ensure they have the required minimum amount of fuel when landing, taking into account the distribution of weight to maintain the aircraft's handling characteristics.
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The aircraft has two fuel tanks, one in each wing
The Cessna 172 is a four-seat, single-engine piston aircraft that has played a significant role in aviation history. It was first flown in 1955 and has been popular for nearly seven decades. The aircraft has two fuel tanks, one in each wing. Each tank holds 28 gallons, for a total fuel capacity of 56 gallons. However, only 53 gallons of that fuel is usable. This is because, while aircraft operators do their best to prevent dirt and other contaminants from entering the tanks, the lines that draw fuel to the engine are slightly above the bottom of the tanks to avoid picking up any contaminants that may settle at the bottom.
The Cessna 172's high-wing design allows gravity to do much of the work when it comes to pressurising the fuel system. This means that, unlike low-wing aircraft, the Cessna 172 only needs the help of an electric boost pump in addition to the engine-driven fuel pump for operations like starting. The Cessna 172's fuel selector valve can be placed in a "both" position, allowing fuel to flow from both the left and right tanks simultaneously. This is in contrast to most low-wing aircraft, which only have "Left" and "Right" settings.
The Cessna 172 has proven its endurance and popularity, becoming the most successful aircraft in history. Cessna has produced more than 44,000 Cessna 172 aircraft to date. The aircraft is known for its reliability and has been a favourite among pilots for flight training and personal use. Over the years, several variants of the Cessna 172 have been developed, including the 172S, all with high wings. The 172S, introduced in 1998, features a Lycoming IO-360-L2A engine with 180hp.
The Cessna 172's fuel capacity and endurance have contributed to its popularity and success. The aircraft's ability to carry a substantial fuel load allows for longer-distance flights and provides pilots with operational flexibility. The placement of the fuel tanks in the wings also contributes to the aircraft's overall balance and handling characteristics.
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The Cessna 172's endurance and popularity have made it the most successful aircraft in history
The Cessna 172 is a four-seat, single-engine piston aircraft with a high fixed wing. First flown in 1955, it has remained popular for nearly seven decades. More than 50% of the world's pilots started their training in the Cessna 172, and it is still a popular choice for flight training and personal use. This enduring popularity has made it a fixture in the aviation world.
The Cessna 172 has two fuel tanks, with one tank mounted in each wing. Each tank holds 28 gallons, for a total fuel capacity of 56 gallons. However, only around 53 gallons of this fuel is usable, as the lines that draw fuel to the engine are slightly above the bottom of the tanks, avoiding any contaminants that may have settled at the bottom.
The Cessna 172's popularity is due to its exceptional performance and reliability. It has consistently delivered customer satisfaction, with over 44,000 Cessna 172 aircraft produced to date. The aircraft's endurance was demonstrated in a world-record-setting flight by Robert Timm and John Cook, who stayed airborne in a Cessna 172 for 64 days, 22 hours, 19 minutes and 5 seconds, taking off and landing at McCarran Field in Las Vegas, Nevada.
The Cessna 172 has undergone several modifications and improvements over the years, with various models introduced, including the 172S, the Skyhawk II, and the Skyhawk R. The aircraft's versatility is evident in its use by both civilian and military markets, with the United States Armed Forces utilising the Cessna 172 as the T-41 Mescalero.
The Cessna 172's enduring popularity, versatility, and exceptional performance have solidified its place in aviation history, making it the most successful aircraft in history.
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The fuel system is designed to prevent fuel contamination
The Cessna 172 is a single-engine piston aircraft with two fuel tanks, one mounted in each wing. Each tank holds 28 gallons of fuel, for a total fuel capacity of 56 gallons. However, only 53 gallons of this fuel is usable. This is because the fuel system is designed to prevent fuel contamination.
The lines that draw fuel to the engine are positioned slightly above the bottom of the tanks. This is because any contaminants that enter the fuel will settle at the bottom, and this design prevents the engine from drawing on contaminated fuel. The Cessna 172 also has a fuel selector valve that can be placed in a "both" position, allowing fuel to flow from both the left and right tanks simultaneously.
The Cessna 172 is a high-wing aircraft, meaning that gravity helps to pressurize the system. This means that the Cessna 172 requires less assistance from an electric boost pump to start the engine. The fuel supply lines in the tanks have a mesh screen to help eliminate sediment from the tanks, and a finer filter and sump (sometimes called a "gascolator") to catch any remaining contaminants.
To prevent fuel contamination, it is important to check the fuel tank system before every flight, even if refueling has not occurred. This includes checking all drain locations for contaminants and draining at least one cup of fuel from each drain location to check for water, cloudiness, haze, or other contaminants. If any contamination is detected, all drain locations should be drained again, and further samples should be taken until the fuel appears clear. If contaminants are still present, do not fly the airplane, and have qualified maintenance personnel drain and purge the fuel tank system.
The FAA has issued warnings about the hazards of water contamination in Cessna fuel tank systems, particularly in the Cessna 100, 200, and 300 series aircraft. Water may enter the fuel tank system through any penetration in the wing fuel tank, and it is recommended that pilots assume that some water exists in the fuel tank system. To prevent water contamination, it is important to check all external entry sites, such as caps and access panels, for evidence of water. It is also recommended that fuel tank systems be equipped with raised, umbrella-style fuel filler caps to prevent water from entering the tank.
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The Cessna 172's engine power can be modified to increase from 180 to 210 hp
The Cessna 172 is a four-seat, single-engine piston aircraft with a high fixed wing. It first flew in 1955 and has been in production for nearly seven decades, with over 44,000 Cessna 172 aircraft built to date. The aircraft has a fuel capacity of 56 gallons (28 gallons in each of its two fuel tanks), though only 53 gallons are usable due to safety measures to prevent fuel contamination.
Another option for increasing the engine power of the Cessna 172 is the Penn Yan Aero SuperHawk conversion kit. This kit is specifically designed for the 1968-1982 Cessna 172 and includes an overhauled O-360-A4M engine, a Sensenich SuperHawk propeller, and all the necessary hardware for installation. The kit costs $35,309, and installation typically takes 20 hours on top of a normal engine removal and replacement.
These engine upgrades can provide significant improvements to the aircraft's performance, including better cruise speeds and a higher rate of climb. Additionally, the increased horsepower enables the aircraft to carry additional weight, providing more flexibility in range planning and an additional safety margin.
It is important to note that modifying the engine power of the Cessna 172 may impact its fuel efficiency and, consequently, the aircraft's range and fuel costs. Additionally, the installation process requires qualified technicians and can take a significant amount of time, during which the aircraft will be grounded. Therefore, owners considering an engine upgrade should carefully weigh the benefits against the costs and downtime associated with the modification.
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Frequently asked questions
The Cessna 172 has two fuel tanks, one mounted in each wing. Each tank holds 28 gallons, for a total fuel capacity of 56 gallons. However, only 53 gallons of fuel is usable to prevent fuel contamination.
"Useful Load" is the weight of fuel, passengers, and baggage that can be carried by an aircraft that, when added to the aircraft’s Empty Weight, brings the total aircraft weight up to its certified maximum Gross Weight.
An aircraft's weight can affect its stall speeds and structural integrity. For example, carrying more fuel and less passenger/baggage weight allows for longer-distance flights, while carrying more passengers and baggage results in a shorter range.
The Cessna 172 is a four-seat, single-engine piston aircraft with a high fixed wing. It first flew in 1955 and has been popular for nearly seven decades, with over 44,000 aircraft built. It is known for its endurance and reliability, making it a favourite among pilots for flight training and personal use.
