In aircraft design and aviation, “Cruise Fuel” refers to the amount of fuel required specifically for the cruise phase of a flight. This is the phase of the flight when the aircraft is flying at its designated cruising altitude, maintaining a steady and efficient speed. Calculating cruise fuel is crucial for flight planning and ensuring that the aircraft has sufficient fuel for the majority of the journey. Here’s the formula, definition, and SI unit for Cruise Fuel:
Cruise Fuel Formula: The formula for calculating Cruise Fuel (CF) involves estimating the fuel consumption rate during the cruise phase and multiplying it by the duration of the cruise. The formula can be expressed as:
- CF: Cruise Fuel, measured in units like pounds (lbs) or kilograms (kg) of fuel.
- Cruise Fuel Flow Rate: The rate at which fuel is consumed during the cruise phase, often expressed in pounds per minute (lbs/min) or kilograms per minute (kg/min).
- Cruise Duration: The duration of the cruise phase, typically measured in minutes.