Sylvie Willis
The PA 34-200T is a variant of the Piper PA-34 Seneca, a turbocharged aircraft first produced in 1975. The aircraft's fuel burn rate depends on the power setting used and the weight of the load. Sources suggest that the aircraft burns between 19.7 and 25 gallons of fuel per hour, with one source stating that the aircraft burns 80 litres of fuel per hour. The PA 34-200T has a fuel capacity of around 466 litres, with some variants having a capacity of 122 US gallons.
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What You'll Learn
Fuel capacity: 466 litres
The fuel capacity of the PA 34-200T is approximately 466 litres. This is equivalent to 122 US gallons, or 93 gallons in other variants. The PA 34-200T has a number of different variants with different fuel tank configurations and capacities.
The PA 34-200T burns between 24 and 25 gallons of fuel per hour at cruise settings, or 19.7 gallons per hour at best cruise. This equates to around 80 litres per hour. At 65% power, the aircraft burns 11.2 to 11.4 gallons per hour per side.
The PA 34-200T has a maximum range of 828 nautical miles, or 850 nautical miles at best range. At a cruise speed of 188 knots, the aircraft's range is 280 nautical miles. At 12,000 feet and 2400 RPM with 30 inches of manifold pressure, the aircraft burns 24 to 25 gallons per hour and achieves a true airspeed of 181 knots.
The PA 34-200T's fuel capacity of 466 litres provides ample range for short trips, typically under two hours, and can be supplemented with auxiliary fuel tanks for longer flights.
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Fuel burn rate: 24-25 GPH
The fuel burn rate of a PA 34-200T depends on a variety of factors, including the power setting used, the weight of the load, and the aircraft's configuration. For example, the fuel burn rate at 75% cruise is around 24 GPH, while normal cruise uses between 10-12 US gallons per engine per hour.
According to one source, the PA 34-200T's fuel burn rate is typically between 24 and 25 GPH when flying at either 2400 RPM and 30 inches at 9000 feet or 12,000 feet with the same settings. This setting results in a true airspeed of 176 knots at 9000 feet and 181 knots at 12,000 feet.
Another source reports a fuel burn rate of 19.7 GPH, but it is unclear what settings were used to achieve this rate. It's important to note that the PA 34-200T has different fuel tank configurations and capacities, which can also impact the fuel burn rate. Some variants have two main wing tanks, while others have four tanks that require pumping from auxiliary tanks into the main tanks.
The weight of the load can also affect fuel burn. For example, with a full load of passengers, the PA 34-200T is limited to approximately 50 gallons of fuel and burns around 24 GPH at cruise, resulting in 90 minutes of flight time with a 30-minute fuel reserve. However, when cruising at 188 knots, the range increases to 280 nautical miles.
Additionally, the engine settings can impact fuel burn. For example, operating the engines at low power settings of 55% to 60% can provide a better compromise between speed, fuel burn, and operating temperatures, while also being quieter.
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Fuel tank configurations: two or four tanks
The PA-34-200T is a twin-engine piston-powered aircraft manufactured by Piper Aircraft Corporation. It is a popular choice for general aviation enthusiasts due to its comfort and reliability. The fuel capacity of the PA-34-200T varies across different variants of the aircraft, which feature different fuel tank configurations and capacities. The two most common configurations are:
Standard Configuration
This configuration features two main wing tanks, with a capacity of 47.5 US gallons per side. This equates to a total fuel capacity of 95 gallons. With this configuration, the aircraft typically burns between 10 and 12 US gallons per engine per hour during normal cruise.
Long-Range Configuration
The long-range configuration also features two main wing tanks, but with a larger capacity of 61.5 US gallons per side. This results in a total fuel capacity of 123 gallons. While this configuration provides extended range, it is important to consider the weight and balance implications of carrying additional fuel.
It is worth noting that some variants of the PA-34-200T feature a four-tank configuration, with auxiliary tanks that require pumping into the main tanks. This configuration adds complexity but can provide even greater fuel capacity and range.
The specific fuel tank configuration and capacity of a PA-34-200T can vary, so it is always important to refer to the flight manual or the aircraft's POH (Pilot's Operating Handbook) for accurate information. Additionally, it is recommended to visually confirm the fuel level in the tanks before operating the aircraft.
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Fuel burn at 75% cruise: 24 GPH
The fuel burn rate of a PA 34-200T depends on a variety of factors, such as the power setting used, the weight of the load, and the cruise speed. For example, at 75% cruise, the fuel burn rate is approximately 24 gallons per hour (GPH), while normal cruise uses between 10-12 gallons per engine per hour. This means that, depending on the weight of the load, the PA 34-200T can fly for around 90 minutes with a 30-minute fuel reserve.
To put this into context, let's consider an example. At 2400 RPM and 30 inches at 9000 feet, the aircraft true airspeed is 176 knots. At this setting, the fuel burn rate is approximately 24 to 25 GPH for both engines. This setting allows the aircraft to fly at a faster speed while maintaining a reasonable fuel burn rate.
It's important to note that the fuel burn rate can also vary depending on other factors, such as the altitude and temperature. For instance, at 12,500 feet and 65% power, the aircraft true airspeed is 169 knots, and the fuel burn rate is approximately 11.2 to 11.4 GPH per side. Therefore, it's crucial for pilots to carefully monitor their fuel usage and plan their flights accordingly to ensure they have adequate fuel reserves.
Additionally, the PA 34-200T has different fuel tank configurations and capacities. Some variants have two main wing tanks, while others have four tanks that require pumping from auxiliary tanks into the main tanks. The fuel capacity can range from 466 litres to 122 US gallons of usable fuel. Therefore, it's essential for pilots to be familiar with the specific fuel tank configuration and capacity of the aircraft they are operating.
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Fuel burn per engine per hour: 10-12 US gallons
The PA 34-200T, also known as the Seneca II, is a turbocharged aircraft that was introduced in 1975. It has a range of fuel tank configurations and capacities, depending on the variant. The standard configuration has a capacity of 47.5 US gallons per side, while the long-range configuration can hold 61.5 US gallons per side.
During normal cruise flight, the PA 34-200T burns approximately 10-12 US gallons of fuel per engine per hour. This burn rate can vary depending on various factors such as power settings, altitude, and aircraft loading. For example, at 75% cruise power setting, the fuel burn rate can be closer to 24 gallons per hour.
To optimize fuel efficiency, some pilots recommend operating the engines at low power settings, between 55% and 60%. At these settings, a balance can be achieved between speed, fuel burn, and operating temperatures, resulting in quieter and more efficient flight.
Additionally, the PA 34-200T has a maximum range of 828 nautical miles, although this can vary depending on cruise speed and fuel reserve considerations. With a full load of passengers, the aircraft's range is typically limited to 280 nautical miles, with a fuel burn of around 24 gallons per hour at cruise.
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Frequently asked questions
The fuel burn of a PA 34-200T depends on the power setting used. It can burn approximately 80 litres/hr.
The PA 34-200T has a fuel capacity of 466 litres or 122 US gallons.
At 75% cruise, the PA 34-200T burns around 24 gallons per hour.
Operating the engines at lower power settings of 55% to 60% results in a fuel burn of around 11.2 to 11.4 gallons per hour per side.
