In an industry where confusion can and is a killer of vast numbers of people, I am utterly boggle smoggled that there are so many variables. We have, litres, US gallons, Imp gallons, pounds, kilogrammes, knots, miles, kilometres, feet, metres, millibars/hectothingies, inches hg, and we wonder why things go wrong now and again.
Crash one, I could not agree more - if only more countries would come into line with the UK..........