I started my public transportation journey early Saturday morning using bus, metro, and taxi to get to Montgomery County Airpark in time to meet the airplane, which was enroute from Boston. Unfortunately, the airplane's transponder failed in flight. Potomac Approach could not allow it to enter the Washington D.C. Special Flight Rules Area in which GAI resides without receiving a secondary radar return from the airplane. The owner was forced to land in Frederick, MD (KFDK), outside this airspace.
The trip gave me the impetus to start studying the Instrument Flying Handbook and learn more about weather flying, especially icing. I had never been to Montgomery County Airpark before, and I was happy to see a traffic pattern 3 and 4 deep with general aviation airplanes (at least until the scheduled TFR centered near Towson, MD went into effect). The wait also gave me a chance to get some pancakes at the restaurant on field.