I have said it before - ICAO needs teeth to enforce standardised regulations globally, meaning the Russians and Chinese fly in feet, the US drop inches of mercury, the Iranians, Russians and Chinese start measuring winds in knots and everybody starts talking comprehensibly. We, as aviation professionals, are all supposed to be on the same side!
Sorry, I'm getting confused:
http://www.pme.gov.sa/en/ICAO%20Refe.../an05_cons.pdf
Page 3-3, Table 3-4
Aren't we all supposed to use the Metric system and the alternative ones only on a temporary basis?