Airport manager George Brinckerhoff added a small gold course to the airfield. He would often play a hole or two with his students after a flying lesson.
The National Bureau of Standards used one of the Army Aviation School hangars to store planes for use in the development of radio navigational aids for "blind flying." The first "completely blind" flight took place at College Park in August 1929.
In the 190s, an airplane repair shop was added to the airfield. This plane belongs to Donald Sampson who flew out of College Park. Its wings have been removed so that it can be repaired.