Logan International Airport Logan Airport became the first in the United States with an indirect rapid transit connection, with the opening of the Airport station on the Blue Line. The March 1947 diagram shows runway 4 (future 4L) in use, with runways 9 and 33 under construction; a different runway 33 ran northwestward from the present intersection of 4R and 9, and runway 25 ran southwest from the present intersection of 4L and 33. The December 1950 diagram shows a layout similar to the current one: runway 4L, 10,000-ft 4R, 7,000-ft 9 and 7,650-ft 33. Boston became a transatlantic gateway after World War
Duluth International Airport Duluth International Airport Duluth International Airport is a city owned, public use joint civil-military airport located five nautical miles (9 km) northwest of the central business district of Duluth, a city in Saint Louis County, Minnesota, United States. It serves the Twin Ports area, including Superior, Wisconsin. Mostly used for general aviation but also served by three airlines, it is Minnesota's third-busiest airport, behind Minneapolis–St. Paul International Airport (MSP) and Rochester International Airport. The Minnesota Air National Guard's 148th Fighter Wing, equipped with F-16C Fighting Falcons, is based at Duluth Air National Guard Base, which is located on the grounds