I would like to tell Brian Withers (Flight International, 24-30 June) that it is not only his side of the Atlantic that dislikes metric terminology in Flight International.

I work in general aviation, and most measurements I come up against are in imperial units. I suspect most of aviation works mainly in imperial measurement, and it is an imposition to have to translate metric gibberish in Flight International into units that are readily understood. Even when flying in the UK I have yet to hear anyone give their altitude in metres. While English is the language of aviation, imperial is the measurement.

Flight International's attempts to pander to the academic elite is alienating a lot of grass roots readers.

Phillip Smith Andover, UK

Source: Flight International