Originally Posted by
pineteam
Don’t take the chances to fly into the mountains. You don’t need to ask radar vector in an emergency. You do what you need to do to fly aviate and navigate safely and only then advise ATC accordingly when times permits.
If you are going to deviate declare may day to keep others away. Otherwise you may trigger TCAS. After takeoff you are climbing at fixed thrust and pitch so declaring may day should not take time.