do we have a thread for random interesting af info?
because TIL about
airway beacons, which functioned as lighthouses for planes in the early days of aviation
the Federal Government built 1,500 of these in the 1920s to help pilots - chiefly airmail pilots at the time - to navigate from city to city
only a few of the beacon towers remain. and even fewer of the adjacent generator shacks/rest station for operators - St Paul, MN restored one in the 1990s
they quickly became obsolete with the advent of radar and on board transmitters
but you can still find the
70 foot long concrete slabs in the shape of an arrowhead here and there in remote desert areas, which I think is wild