i have this nagging question about MSA. Consider that the MSA for a particular approach is around a VOR are the sectors bearing to the station or radials? The reason I ask this is because I was looking at a number of Approach Plates(Jeppesen) and the sectors if the MSA was referenced with a VOR indicated the bearing. In this chart would the MSA between bearing 180 and 270 be 15000?
Also if that's the case isn't it easier to describe then as R360 and R090 because Radials will be more precise than headings.