plenty of room for time expansion. originally, the airport was closed from 10pm to 6am. now that time is limited for "quiet" planes has been eliminated. there are not many planes before 5:45, or after midnite, but that still leaves room for a 25% expansion.

the two big limiting factors that keep dca from becoming a "world class" airport is lack of wide bodies, and customs/imigration facility, so we can get tatl planes in.