Hi, I wonder if anyone can help me. I am trying to interpret SID for flying a bit more realistically, and am probably being a bit dull. For example, I am looking at a departure from EGFF which is the ALVIN departure. The chart give variuos instructions and then says to pass ALVIN at a certain altitude. What exactly is ALVIN and how do you know when you have passed it?
If anyone can clear the mist, much appreciated.
Thanks
Jonathan