National Geographic : 1954 Jul
Speeding the Mail, AME A the Copter Leapfrogs Across a Mighty City The "whirlibird" below flut ters away from the Post Office roof (lower left) southwest of Chicago's congested Loop dis trict. The pilot need not hur dle skyscrapers; over most of his route he follows the Sani tary and Ship Canal. Since organizing in 1949, Helicopter Air Service has flown 1V2 million miles and carried more than 13 million pounds of airmail. Despite the bluster of Windy City weather, pilots meet 96 percent of their schedules. +Back at Midway, unmindful of snow that clogs streets, the copter takes aboard air parcel post. 149 ma/ ..