3 ms·

Your comment reminded me about the concrete arrows deployed across the U.S. for pilots. https://www.atlasobscura.com/articles/before-radios-pilots-navigated-by

• abbycurtis33 11mo ago
  Absolutely unbelievable there's not an overhead picture in that article.
  • lukan 11mo ago
    Plenty of pictures are here instead https://www.dreamsmithphotos.com/arrow/ https://www.dreamsmithphotos.com/arrow/
  • deleted 11mo ago
    [deleted]
• buildsjets 11mo ago
  Unfortunately, they de-commissioned the airway beacon system as an official navaid and stopped maintenance for the ground markers during the pandemic. Most are still there, but unlighted and unmaintained. A limited few are being operated by a historical society. https://www.mdt.mt.gov/aviation/beacons.aspx https://www.mdt.mt.gov/aviation/beacons.aspx
• andy99 11mo ago
  Reminds me that there were a number of planes that landed accidentally on the runway of an Air Force base close to Heathrow, apparently because it shared some similar landmarks, some kind of gas tanks the pilots were using as waypoints: https://simpleflying.com/pan-am-707-raf-northolt/ https://simpleflying.com/pan-am-707-raf-northolt/