In flight mechanics, specific range is a measure of an aircraft’s efficiency in terms of the distance it can travel per unit of fuel consumed. It quantifies the aircraft’s ability to cover distance efficiently with the available fuel resources. A higher specific range value indicates greater fuel efficiency, allowing the aircraft to cover more distance with less fuel consumption. Mathematically, specific range (S) is calculated as:
where:
- V is the distance travelled in km
- Wf is the fuel consumed in kg
- SR is the specific range inn km/kg