Steve Wolff

Steve Wolff, a retired airline captain with over 23,000 hours flying time worldwide, is an amateur aviation historian with more than a thousand books in his collection. He lives in Lexington, Neb.

Early mail pilots eyed roads and railroad tracks as they flew. Soon, the U.S. Airmail built a transcontinental system of night beacons and landing fields. In 1931, low-frequency radio signals from Medicine Bow were the final link–like the railroad’s golden spike 62 years before—in a navigational chain allowing on-schedule, cross-country, all-weather flight.