Bad weather is frequent in southern Greenland, and Narsarsuaq is virtually surrounded by high mountains, making the approach to the steel-mat runway exceedingly difficult. The usual approach was a low-level flight up a fjord. Landings were (and still are) made to the east, with takeoffs to the west, regardless of the wind direction.
BW-1's importance declined postwar, but the U.S. Air Force maintained it as Narsarsuaq Air Base during the early Cold War years, when it served as a refueling station for jet fighters and for helicopters crossing the North Atlantic. The runway by this time had been paved with concrete. Jets require a longer takeoff run than do propeller-driven aircraft, and the air base used a small tugboat to move icebergs out of the way of planes taking off over the basin west of the runway.
The advent of aerial refueling, and the opening of the larger Thule Air Base in northern Greenland, made the base redundant, and it was turned over to the Danish government of Greenland in 1958. Today it is Narsarsuaq Airport and served by twice-weekly passenger jets from Reykjavík, Iceland, as well as by commuter aircraft from Kangerlussaq and other Greenlandic airfields. The airport is designated UAK, and the runway headings are 07 for landing and 25 for takeoff (070 and 250 degrees magnetic). There is no control tower, and a 4,000-foot ceiling is advised even for an approach on instruments.