Summary

b&w narrated - historical aeronautical documentary - educational - aviation history - animated graphics route map - light beacons - marks for safe path for flying from city to city - radio range beacons - graphic map of Civil Aeronautics Authority Radio facility map - CAA - map of USA - system of radio range beacons shown - radio landing beam for safe landing - drawing of airfield from h/a down - shows source of landing beam - runway localizer beacons - plane on landing path - c/u interior cockpit instrument gauge w/ horizontal, vertical guidance range - needle goes up and down - m/c/u airplane lands on runway at night - animated graphic map of US with routes lit up shows path or network growth