ICAO publishes study on Phraseology

[Discorde]

From

'How Airliners Fly'

'How Airliners Fly'

:

<<Although subsonic cruising speed has reached its natural limit, navigational efficiency is still advancing. Computers in Air Traffic Control centres and in airliners themselves allow more productive use of airspace as the density of traffic in the sky steadily grows. One likely development is greater direct control of flights from the ground, rather than by spoken radio communication between pilots and controllers as at present, with its attendant potential for misunderstandings, especially when communications are in English between participants for whom this language is not the mother tongue.

It is unlikely that complete control from the ground will ever be achieved, however, because there will always be occasions when problems can only be resolved with the judgement of a human mind in the flight deck, such as the necessity to deviate from the planned flight path in order to avoid hazardous weather or for technical reasons or to reconfigure aircraft technical systems after faults occur. Perhaps a system will evolve where a ground controller sends instructions directly to an aircraft's autopilot but the instruction will not be executed until the human pilots permit it.>>