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Does weight Affect cruise speed?
Increased aircraft mass increases the drag due to increased induced drag (greater lift required) and increased profile drag (higher speed at the same angle of attack). The speed which gives the maximum range for a given aircraft weight and altitude is called best range speed.
How cruise performance changes as fuel is burned and weight decreases?
As fuel is burned and weight decreases during cruise, dynamic pressure must also be reduced if the lift coefficient is to be maintained at its optimum value. Therefore, for a given cruise velocity, the optimum density decreases throughout the flight, corresponding to an increase in altitude.
What is the difference between basic empty weight and standard empty weight?
Standard empty weight is the weight of the standard airplane, full hydraulic fluid, unusable fuel, and full oil. Optional equipment includes the weight of all equipment installed beyond standard. Basic empty weight is the standard empty weight plus optional equipment.
How does weight reduction affect your gas mileage?
Based on a fuel economy improvement of 0.33% per 1% reduction in weight as estimated by Ricardo Inc., Impact of Vehicle Weight Reduction on Fuel Economy for Various Vehicle Architectures, April 2008. Our estimate assumes a vehicle weight, including cargo, of 3,200 lbs. Argonne National Laboratory. 2015.
How does driving at higher speeds affect fuel economy?
Driving at higher speeds increases aerodynamic drag (wind resistance), reducing fuel economy. The new EPA tests account for aerodynamic drag up to highway speeds of 80 mph, but some drivers exceed this speed.
How does idling affect your gas mileage?
An extra 100 pounds in your vehicle could reduce your MPG by about 1%. 6 The reduction is based on the percentage of extra weight relative to the vehicle’s weight and affects smaller vehicles more than larger ones. Idling can use a quarter to a half gallon of fuel per hour, depending on engine size and air conditioner (AC) use.
How does carrying a trailer affect fuel economy?
Towing a trailer or carrying excessive weight decreases fuel economy. Vehicles are assumed to carry only three hundred pounds of passengers and cargo during testing. Running electrical accessories (e.g., air conditioner) decreases fuel economy.