United Air Lines original vintage advertisement. United Air Lines
completes 10 years of coast to coast flying over the Main Line.
In 1927 the journey took 33 hours coast to coast with 14 stops
in a single engine Boeing at 105 mph with 2 passengers, box lunches,
no radio and few flying aids. In 1937 the journey takes 15½ hours,
3 stops in a Douglas mainliner holding 21 passengers flying at
192 mph. Hot a la carte meals, quiet cabins, berths and all modern