The Siren Board

http://explore.lib.virginia.edu/exhibits/show/wsls/cold (2nd article down)

A small airplane flies over Roanoke County farmland in a Civil Air Patrol demonstration of a new means of alerting citizens to imminent attack.

Just thought I'd share this neat little tidbit from the WSLS-TV archives I found earlier today. It's a unique concept...but it clearly didn't spread, considering that nobody here has a Piper Cub sitting next to their Thunderbolt.

Something like a Junkers Ju 87/Stuka siren?



https://www.youtube.com/watch?v=LCB8ZVxKqyI

All aircraft sirens I have seen were 28v versions of standard electronic vehicular sirens. Even Whelen makes sirens specifically for aircraft (http://www.whelen.com/aviation/category.php?head_id=16). 1959 was awhile back, but there were still some primitive electronic sirens back then. Also, I believe Roanoke installed a system of Thunderbolts as well.

Like a giant mosquito.