National Geographic : 1926 Jan
Photograph by Mechanic C.M. McCormick A PHOTOGRAPHIC PLANE ESCORTING THE AIR MAIL The westbound New York-San Francisco schedule (2,665 miles) is 34 hours, 20 minutes; eastbound, 29 hours,15minutes. The prevailing winds arefrom the west, thus aiding the pilot in his eastward flight. This time includes stops at 15 stations forgas and oil and exchange ofmails.