National Geographic : 1940 Dec
Aviation in Commerce and Defense 699 Photograph by William T. Hoff Snow Drifts and Icy Pavements Don't Block the Highways of the Sky As long as airport runways are cleared of snow, as this truck is doing at LaGuardia Field, New York, the air transport lines operate as normally in winter as in any other season. Photograph by Lis Marden Breakfast in Bed on an Airplane? That's Commonplace Now! Sleeper planes, such as this Eastern Airlines ship, have upper and lower berths. In the "stratoliners," berths are in compartments crosswise of the ship. Each passenger is given a bag (left) for overnight equipment.