Each grade of diesel has a different density, so the weight of a liter of diesel depends on which grade is under consideration. Alright, I'm pretty embarrassed by this lapse in my memory, but what in the world is the exact weight of a US gallon of jet fuel (Jet A) per pound. This sounds like a tremendously poor miles-per-gallon rating! The UK also have a specification for this grade namely DEF STAN 91-87 AVTUR/FSII (formerly DERD 2453). How will the volume change if you heat it to 250°C? In the Density vs temperature figure (°C), you see that the orange line represent this jet fuel. Engine Use - Conclusions While many attest to using 50-50 ratios of jet/diesel in diesel engines, this will cause the engine to run hotter and have a lower mpg rating. A plane like a Boeing 747 uses approximately 1 gallon of fuel (about 4 liters) every second. According to Boeing's Web site, the 747 burns approximately 5 gallons of fuel per mile (12 liters per kilometer).. Jet fuel or aviation turbine fuel (ATF, also abbreviated avtur) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines.It is colorless to straw-colored in appearance. You have 1000 m3 of a jet fuel with a density of 800 kg/m 3 at 15°C. 0.80 Kilos per litre. JET A-1 7.8666 330.25 1.26 52.83 1250 3.78541 200 158.9872 METRIC TONNES BARRELS LITRES US GALLONS DRUMS US GALLONS DRUMS LITRES BARRELS METRIC TONNES 3.78541 4.5 5.79 1.2 0.695 6.97 2.63 2.205 1.53 3.16 For Avgas at SG=0.695 Note: with arrow, multiply by factor shown; away from arrow, divide by factor shown. To be more precise, it´s the density of the fuel in comparison to the density of fresh water which has a S.G. of 1:1. Helpful Aviation Facts & Conversions Mach = Speed of Sound 669.11=Knots or 770=MPH Weight of Jet Fuel (Jet 1-A Clear to Straw color) 1 US Gallon = 6.46 - 7 pounds Weight of 100LL or AVGas (blue color) 1 US Gallon = 6.02 pounds Liter/Litre to Gallons Conversion 1 Liter/Litre = .264172 US Gallons As 1 Litre of water is equal to 1 kg, 1 Litre of Jetfuel at SG 0.780 is equal to 780grammes. Jet A / Jet A-1: 0.775 to 0.840 kg/L Jet B: 0.751 to 0.802 kg/L (Easy check: Lowest volume at the lowest temperature) 2. I've tried most of the aviation sites and even NATA to no avail. A liter of 1D diesel weighs 874.61 grams, a liter of 2D diesel weighs 848.98 grams and a liter of 4D diesel weighs 959.51 grams. This means if the fuel has a SG of .780 it weighs 0.780 of 1 litre of of water @ 4deg C (water is used as the reference unit). The volume of your jet fuel at 15°C is 100liters*0.923 = 92 liters. So if the bowser has metered out 100,000Litres of Jetfuel at SG 0.780, it will add 78,000kgs to the weight of the aircraft. I usually use 7lbs/gal but can't remember the exact weight. This free density calculator determines any of the three variables in the density equation given the other two. There are 2 different fuel types but Jet A is the most common. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. It is the dominant military jet fuel grade for NATO airforces. 1 litre of fresh water will weigh 1 Kilo whereas 1 litre of Jet A will weigh approx. According to Inspectapedia.com, diesel has a higher BTU output and more energy per unit than does Jet-A fuel. I seem to remember that is in the neighborhood of 6.73lbs/1 US gal but can't find any sites to confirm it. Over the course of a 10-hour flight, it might burn 36,000 gallons (150,000 liters). In addition, explore hundreds of other calculators including topics such as finance, math, health, fitness, weather, and even transportation. JP-8 is the military equivalent of Jet A-1 with the addition of corrosion inhibitor and anti-icing additives; it meets the requirements of the U.S. Military Specification MIL-T-83188D.