Oh dear. You're missing my point entirely - the example used is irrelevant - the point is that (CRM wise) if you don't check on the machinery you are not doing your job properly, and you can only do that if you know the basics, of which departure is but one aspect.
And I did not say departure is ch long. They are two different things. Of course, the JAA may not think so, but who cares about them. Let's see if we can make it clearer:
Change of longitude (dīlong) is an angle measured in minutes at the Equator, and departure is a distance in nautical miles elsewhere. More technically, departure is the distance made good in an E-W direction along a rhumb line.
And why is it nonsense?
Learning about the inner workings of a CRT is nonsense.
Last edited by paco; 18th Dec 2011 at 13:35.