Apologies if it is addressed in a prior thread, my search did not yield a recent answer. I realize that time to clear immigration and customs is based on a lot of variables. I have a US passport.

I'll be coming in to MUC later this month on a US Airways flight from Philadelphia. Scheduled arrival is 08:45 on a Thursday. I will be in Envoy class. I have an appointment near Olympiapark at 11:15. Assuming the flight is on time, does this seem like sufficient time to catch a train and make it there on time?

Google navigation estimates transit time to be about 1 hour to my destination.