Mxsmanic wrote:
Travis Marlatte writes:


You can't file or accept a route you can't fly just because you're sure of a
re-route.


Sure you can. Aircraft do it all the time. For example, you can be assigned
a route and altitude from the West Coast (of the U.S.) that will take you
right into the side of a mountain if you continue on it long enough; but you
accept it anyway because you know that ATC will change your heading and
altitude long before that happens.


You have to assume that you will lose comm shortly after takeoff
and fly the whole thing, as filed, minimim altitudes included.


But what if you are given vectors and altitude well after take-off, and these
will _eventually_ lead you into a mountain, and you lose communications before
ATC can change them? Do you return to your original flight plan, no matter
what kind of altitude or course changes are required? Do you fly the last
vectors you were given, and veer away from them only when it becomes unsafe to
fly them (and which way do you go?)? What do you do?

If you receive vectors very different from your filed route in crowded
airspace and you then lose your radio, trying to return to your originally
filed route might be dangerous. At the same time, you can't indefinitely
follow vectors that will take you into terrain. If you follow the latter
vectors, at some point you must deviate from them to avoid terrain--which way
do you go then?


Don't worry about it. Keep playing the msfs game. It is beyond you.
However, if you feel like you really need to know you can pick up the
FARs and the AIM and read it. It is in plain English.