i got a couple of questions for you flight simers out there
1. how do you know when to start your decent? lets say i'm in a 744 at FL390...how many nm miles out of the apt do i start my decent, and at what speed?
2. is there a way to fly a GPS approach?
3. is there any way to know if your aligned w/ the runway before you come in range of the localizer?
thanks for your help in advance