Katerina Swanson
The Diamond Aircraft DA42 Twin Star is a four-passenger, twin-engine airplane with a standard fuel capacity of 52 gallons (with 50 usable). The DA42 is powered by two 1.7-liter Jet A-fueled, four-cylinder compression-ignition (diesel) engines that each produce 135 horsepower. The fuel burn at 75% power is 20 liters per engine per hour, with a standard fuel tank that can hold 190 liters. The DA42 has a maximum range of 10.4 US gallons per hour of fuel consumption at 60%.
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What You'll Learn
The DA42's standard fuel capacity is 52 gallons
The DA42 is a four-passenger, twin-engine aircraft with a maximum takeoff weight of 3,935 pounds. Its standard fuel capacity is 52 gallons, with 50 gallons being usable. The DA42 is powered by two 1.7-liter, four-cylinder compression-ignition (diesel) engines, each producing 135 horsepower. The aircraft has a sleek design, utilising extensive fiberglass and carbon-fiber materials, resulting in smooth lines and improved aerodynamics.
The fuel is stored securely in aluminium tanks located within the wings. While the standard fuel capacity is 52 gallons, DA42 offers an extended-range option. These extended-range tanks are installed in the aft section of each engine nacelle, increasing the fuel capacity to 79 gallons, with 76 gallons being usable.
The DA42's engines are turbo diesel and run on JET A1 fuel. The specific fuel consumption of the Centurion 1.7 engine is 0.36 pounds of fuel per horsepower per hour, contributing to the aircraft's fuel efficiency. The DA42 has been praised for its fuel efficiency, burning less fuel than comparable aircraft while also benefiting from the lower cost of Jet A fuel.
The DA42-VI, the latest iteration of the DA42, features Austro Engine AE 300 turbocharged common-rail injected 2.0-liter diesel engines, delivering 168 horsepower. This upgraded version maintains the standard fuel capacity of 52 gallons while offering an auxiliary tank option, enhancing the aircraft's range and endurance.
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The DA42's extended-range fuel capacity is 79 gallons
The DA42 is a four-passenger, twin-engine aircraft with a standard fuel capacity of 52 gallons, with 50 gallons being usable. However, the DA42s extended-range fuel capacity is 79 gallons, with 76 gallons being usable. This extended-range capacity is achieved through the installation of optional auxiliary tanks, which provide an additional 27 gallons of fuel capacity. The DA42 is an efficient aircraft, burning less fuel than comparable models, such as the Piper PA-24 Comanche.
The extended-range fuel capacity of the DA42 is a significant upgrade from the standard capacity and provides several benefits for pilots and passengers alike. With the additional fuel capacity, the DA42 can fly for longer durations without refuelling, making it ideal for long-distance trips and providing peace of mind when flying over remote areas or water. The extended range also offers greater flexibility in flight planning, allowing for more direct routes and reducing the need for fuel stops.
The efficiency of the DA42 is due in part to its engine design. The aircraft is powered by two 1.7-liter, four-cylinder compression-ignition (diesel) engines, which have an 18-to-1 compression ratio. This high compression ratio contributes to the aircraft's fuel efficiency and results in a specific fuel consumption of 0.36 pounds of fuel per horsepower per hour.
The DA42's extended-range fuel capacity of 79 gallons strikes a balance between fuel efficiency and mission flexibility. This capacity allows pilots to plan longer flights with confidence while also benefiting from the aircraft's efficient fuel consumption. The DA42 is well-suited for long-distance travel, providing both range and fuel economy, making it a versatile option for pilots and owners.
Overall, the DA42's extended-range fuel capacity enhances its capabilities as a twin-engine aircraft, offering increased range and endurance without compromising the aircraft's performance or handling characteristics. This option makes the DA42 an even more attractive choice for those seeking a versatile and efficient aircraft for their travelling needs.
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The DA42's fuel efficiency
The DA42 is a four-passenger, twin-engine aircraft with a standard fuel capacity of 52 gallons, 50 of which are usable. The plane is powered by two 1.7-litre, four-cylinder compression-ignition (diesel) engines, each producing 135 horsepower. The specific fuel consumption of the DA42's engine is 0.36 pounds of fuel per horsepower per hour, which is lower than that of comparable small-bore Lycoming engines, which consume around 0.45 pounds of fuel per horsepower per hour.
The DA42 also offers extended-range fuel tanks as an option, increasing the fuel capacity to 79 gallons, with 76 usable. This extended-range option provides greater endurance and flexibility for longer flights or flights to remote destinations.
The DA42-VI, the latest version of the DA42, is powered by two Austro Engine AE 300 turbocharged common-rail injected 2.0-liter diesel engines, producing 168 horsepower. This version has a maximum range of 10.4 US gallons per hour fuel consumption at 60% power at 12,000 feet.
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The DA42's fuel consumption
The DA42 is a four-passenger, twin-engine aircraft with a standard fuel capacity of 52 gallons, 50 of which are usable. The DA42 is powered by two 1.7-liter, four-cylinder compression-ignition (diesel) engines that produce 135 horsepower each. The specific fuel consumption of the Centurion 1.7 engine is 0.36 pounds of fuel per horsepower per hour. The DA42's fuel efficiency is further enhanced by Thielert's FADEC, the first general aviation engine control system that manages propeller rpm, fuel mixture, and engine power settings through a single lever.
The DA42's standard fuel capacity can be extended to 79 gallons with 76 usable gallons, providing additional range and endurance. The fuel burn at 75% power is 20 liters per engine per hour, resulting in a typical endurance of 4 hours and 45 minutes with standard tanks and 7 hours and 10 minutes with auxiliary tanks.
The DA42 has been praised for its fuel efficiency, burning less fuel than comparable aircraft such as the Piper PA-24 Comanche. The compression-ignition diesel engines contribute to this efficiency, as they are more thermally efficient than gasoline-fueled engines.
The DA42-VI, the latest version of the DA42, features Austro Engine AE 300 turbocharged common-rail injected 2.0-liter diesel engines with 168 horsepower. It has a maximum range of 10.4 US gallons per hour fuel consumption at 60% power at 12,000 feet.
Overall, the DA42's fuel consumption and efficiency are impressive, contributing to its reputation as a capable and economical aircraft.
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The DA42's fuel type
The DA42 is a four-passenger, twin-engine aircraft with a standard fuel capacity of 52 gallons, 50 of which are usable. It is powered by two 1.7-liter, four-cylinder compression-ignition (diesel) engines that each produce 135 horsepower. The DA42 is fuelled by Jet A-1 fuel, which is significantly cheaper than 100LL avgas. Its specific fuel consumption is 0.36 pounds of fuel per horsepower per hour.
The DA42 has an average empty weight of 2,750 pounds and a maximum takeoff weight of 3,935 pounds. Its fuel is stored in aluminium tanks in the wings, with extended-range tanks available as an option, installed in the aft part of each engine nacelle. With these extended-range tanks, the DA42 can hold 79 gallons of fuel, with 76 gallons being usable.
The DA42 has impressive fuel efficiency, burning less fuel than other aircraft with similar engine specifications. For example, it burns less fuel than the Piper PA-24 Comanche, which has a four-cylinder 180-horsepower Lycoming engine. The DA42 achieves this efficiency due to its 18-to-1 compression ratio, which is characteristic of compression-ignition (diesel cycle) engines. These engines are much more thermally efficient than gasoline-fuelled engines.
The DA42-VI is the latest version of the DA42, featuring two Austro Engine AE 300 turbocharged common-rail injected 2.0-liter diesel engines with 168 horsepower. It has a maximum speed of 176 knots at a cruise speed of 75% and a maximum operating altitude of 5,486 meters. The DA42-VI has a maximum range of 10.4 US gallons per hour fuel consumption at 60% power at 12,000 feet.
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Frequently asked questions
The DA42 has a standard fuel capacity of 52 gallons with 50 usable.
The DA42 has a fuel consumption of 11 USG/hr at 140kt.
The DA42 uses Jet A1 fuel.
The DA42 has been noted to have better fuel efficiency than the Piper PA-24 Comanche and the TB20.
The DA42 has a maximum range of 10.4 US gal/h fuel consumption at 60% (12,000 ft).
