Thanks to Craig, Gerald, Joel, Marc, and Al for their comments. We were given a "Zero West Routing" after departing from 27L from ORD to MSP. I believe the "foxtrot" comment made was "Foxtrot Mike," however that might relate to taxiways, as my notes aren't entirely clear (score no points for "jotting down info quickly" :-) I identified MSN as I quickly "drew" the runway configs on a piece of paper and compared them to Airnav's info last night :-) I also heard on Ch. 9 - Lufthansa flight 436 - Neat pilot chatter. If anyone wants a list of other flights heard on Ch. 9 or a list of N numbers seen at airports, contact me offlist and I'll provide. Blaine Thompson Fort Wayne, Indiana