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underpants

(187,571 posts)
1. There are still giant concrete arrows in the Nevada/Cal deserts to direct the pilots
Tue Sep 24, 2024, 10:58 AM
Sep 2024



. "Ford beacons" (named after Ford Car headlights) were also used, placing four separate lights at different angles.[5] Airports used green beacons and airways used red beacons. The beacons flashed identification numbers in Morse code. The sequence was "WUVHRKDBGM", which prompted the mnemonic "When Undertaking Very Hard Routes Keep Directions By Good Methods".[6]

https://en.wikipedia.org/wiki/Transcontinental_Airway_System

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Latest Discussions»Culture Forums»American History»On September 23, 1911, th...»Reply #1