2.301 Horizontal flight efficiency (HFE) – local

DESCRIPTION:

​Percentage of great circle distance vs total distance flown from the entry point to the exit point within an airspace.

STRATEGIC OBJECTIVE:

Air Navigation Capacity and Efficiency

INDICATOR TYPE:

Activity-related (Predictive or Leading)

RATIONALE:

​This indicator allows measuring and optimization of flight efficiency in terms of achieved distance in flight which in turn reduces cost and emissions.

LIMITATIONS:

​Aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter.

CALCULATION METHOD/FORMULA:

​HFE (local) =  (NX in km / total distance flown in km) x 100

NX: distance between the entry point and the exit point within the airspace

REFERENCES:

2.301 Horizontal Flight Efficiency (HFE) Local.pdf