What I do not understand is this
Trhey give you examples of what to practice - the cubes, the basic check, the diagramming and the PDF document. Why dont they give you examples of SDT calculations? Not complaining... I just dont see why they tell you whats in half the questions, but not the other half? Seems a bit odd. Just to catch you off guard maybe?
Yeh im using the RAF website as well and its all in MPH. I suppose its all the same maths really, except You have to know your conversions to nautical miles etc.