The big scramble for postwar interstate air routes began last week in Denver. A score of Westerners, loaded with maps, plans, briefs and economic charts, appeared before a territorial Civil Aeronautics Board hearing. Each stood ready to prove that CAB should give him a certificate to operate a local "feeder" airline, to pick up back-country passengers and deliver them to the big airports where the transcontinental airliners stop, or to save them travel-time by hopping them for short distances.
Feeder-line operation is an undeveloped field in the U.S. airline business. To keep...