2.302 Horizontal flight efficiency (HFE) – network

DESCRIPTION:

​Percentage of distance achieved vs total distance flown 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) = [|ND – XD| in km / total distance flown in km] x 100

ND: great circle distance from the entry point N to the destination D
XD: great circle distance from the exit point X to the destination D

REFERENCES:

2.302 Horizontal Flight Efficiency (HFE) Network.pdf