Wayne County began to plan an airport in the western townships of the county as early as 1927. The following year, the county board of commissioners issued a $2 million bond to fund the purchase of one square mile (2.6 km2) of land at the corner of Middlebelt and Wick roads, the northeastern boundary of today's airport. Construction was completed in 1929, and the first landing was on February 22, 1930; Wayne County Airport was dedicated on September 4, 1930. That year, Thompson Aeronautical Corporation, a forerunner of American Airlines, began service from the airport. From 1931 until 1945, the airport hosted Michigan Air National Guard operations gained by the United States Army Air Forces. It was named Romulus Field during the war; it was then all east of Merriman Road and north of Goddard Road. The intersection of the two runways is still visible at 42.23266°N 83.33564°W? / 42.23266; -83.33564. Wayne County expanded the airport to become Detroit's primary airport. It renamed it Detroit-Wayne Major Airport in 1947, and in the next three years expanded threefold as three more runways were built. In 1949 the airport added runways 3L/21R and 9L/27R, followed by runway 4R/22L in 1950. In 1946-47 most airline traffic moved from the cramped Detroit City Airport (now Coleman A. Young International Airport) northeast of downtown Detroit to Willow Run Airport over 20 miles (32 km) west of the city, and 10 miles (16 km) west of Wayne County Airport. Pan American Airways (1954) and British Overseas Airways Corporation (1956) were the first passenger airlines at Detroit-Wayne Major. In the April 1957 Official Airline Guide they were the only passenger airlines: three Pan Am DC-7Cs each week FRA–LHR–SNN–DTW–ORD and back, and one BOAC DC-7C each week LHR–PIK–YUL–DTW–ORD and back (skipping YUL on the return flight). Aerial photographs of DTW from 1949 and 1956 show the airport's expansion. In 1958 the Civil Aviation Administration—now the Federal Aviation Administration (FAA)—announced the inclusion of Detroit-Wayne in the first group of American airports to receive new long-range radar equipment, enabling the airport to become the first inland airport in the United States certified for jet airliners. Also, in 1958, airport management completed the Leroy C. Smith (South) Terminal and gave the airport its present name. American Airlines moved from Willow Run to Detroit-Wayne in October 1958, followed by Northwest, Allegheny, and Delta in the next few months; the other airlines stayed at Willow Run until 1966. Northwest's flights to Minneapolis were DTW's only nonstops west beyond Chicago and Milwaukee until 1966. The first scheduled jets were Delta DC-8s to Miami in late 1959. The North Terminal (later renamed the James M. Davey Terminal) opened in 1966, which was located on the current site of the Evans Terminal. A third terminal, the Michael Berry International Terminal, opened in 1974. The last of its original three parallel runways (3R/21L) was completed in 1976; a new parallel crosswind runway (9R/27L) opened in 1993. Republic Airlines began hub operations in 1984, and its merger with Northwest Airlines in 1986 expanded the hub. The Northwest hub operated out of the Davey Terminal throughout the 1980s and 1990s. Transpacific flights began in 1987, with Northwest providing nonstop service to Tokyo–Narita. The last of Metro's six runways (4L/22R) was completed in December 2001 in preparation for the opening of the mile-long, 122-gate, $1.2 billion McNamara Terminal in the airport midfield in 2002. The airport remained a hub for Northwest Airlines until it merged with Delta Air Lines. The present Runway 3L/21R has had four identifiers. When it opened in 1949, it was Runway 3/21. With the opening of the new west side Runway 3L/21R in 1950, the original 3/21 became 3R/21L. With the opening of the new east side Runway 3R/21L in 1976, it became 3C/21C.