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Private aircraft combustion rates

When you are on the air to buy a new airplane, or if you only want to rent an airplane, the consumption ratio is an important consideration, along with the dimensions, ranges, specifications and so on. With the purchase of a motorbike, the consumption of petrol is readily ascertained and specified in the motorbike specification.

It'?s not that easy for planes. Yet the cost of fuels can be 50% or more of total operational cost, ranging from $100,000 a year for a lightweight jet to $million a year for a heavier jet. No standardisation exists within the sector as to how to report or measure vehicle fuels, and it is a number that many OEMs do not report.

Part of this research has been done for you; the following charts show the approximate values of consumption for a sample of airplanes. Please be aware that the numbers are given in both galons per minute and lbs per minute. If you are searching for an airplane, you can find both stats, or you can find only one.

A typical airplane pilots think in lbs per hours (pph) because the total airplane mass, which includes propellant, passenger, cargo, etc., is a critical element in any itinerary. On the other side, the passenger or owner thinks in galons, as this is how they calculate the amount of petrol.

Please be aware that the ratio between gal/pound will vary according to your specific fuels, as well as your specific temperatures and pressures. We have used a 6.7 lb per US galloon diesel refuelling rate of 0.803 kg/l for the following calculation. Indicates the estimated distance to be covered by average consumption by category of aircraft:

Chart with estimated consumption depending on airplane model: You can see that the consumption values differ a lot and for good reasons. In contrast to a vehicle, the combustion rates of an airplane depend on a number of different things, among them: Higher altitudes increase the amount of kerosene an aero engine consumes.

However, the more heavy the aircraft, then the more propellant it needs to soar. An airplane that carries two passenger with lightweight hand luggage and two members of the flight crews consumes less propellant than the same ship if it is laden with ten passenger and one weeks luggage for all of them. As a result, the amount of kerosene required for the ship and its content further increases its overall mass and thus increases consumption.

An airplane burns more gas during takeoff and first climb. As soon as the cruise height and cruise velocity are attained, consumption decreases. Therefore, some reporting will provide consumption values related to flying times. Subsequently, the log shows a lower consumption for the following few consecutive driving hours. 4. The Embraer website also provides the Phenom 300 with daily consumption data to demonstrate average consumption during takeoff and climb versus later use.

It is important to keep in mind that when giving mean values, there will be a significant increase in consumption in the first lesson. Note also that since bigger airplanes have a longer cruising distance, their mean is averaged over longer distances than a smaller ship. If airplane makers give figures for propellant consumption, they will almost always show the assumption that for example 6 passengers with 91 kg (200 lb) each, Long Range Cruise Speed, ISA en-route, NBAA IFR reserve with 100 nm alternatively, take off at sea level.

When you are planning to buy an airplane, you should know that gasoline will be the largest varying one. Up to 70 per cent of your operating expenses are accounted for by your varying fuels. In the following article we shall talk about the operating expenses with a division of the fix and floating expenses inclusive of petrol costs:

When you purchase a Jet-Card membership, some of the maps fully incorporate your full petrol costs. Other airlines levy an extra tax on aviation fuels, which may vary according to your fare and time. If you charter an airplane, the costs for fuels are usually contained in the total quotation.