The Siren Board

Coaster2301Studios wrote: ↑

Sun Aug 27, 2017 8:18 pm

FS-2001 AC Hapuna Beach, HI

500AT wrote: ↑

Fri Aug 25, 2017 2:44 am

This is the old SD-10 from Milan, Michigan. This image was shot on Kodak Ektachome 200 slide film in March, 1989.

Milan SD-10 Air Raid Siren 2 by Ronnie, on Flickr

Here's a Whelen WPS-200-16 shot in March, 1989 in Ann Arbor, Michigan. This image was shot on Kodak Ektachome 200 slide film.

Ann Arbor Whelen WS-2000-16 A by Ronnie, on Flickr

flatlandsparky wrote: ↑

Sun Apr 09, 2017 12:24 am

Sterling Colorados Thunderbolt a few weeks before it was removed. In the lower left corner you can see the head of the dog park Sentry that replaced this beauty.

Rheems1 wrote: ↑

Wed Aug 09, 2017 7:23 pm

jacob585 wrote: ↑

Sat Jul 08, 2017 12:28 am

Rheems1 wrote: ↑

Mon Apr 10, 2017 11:41 am

Here are a few of my pictures that I would consider epic, first off this Thunderbolt 1003 in the middle of absolute nowhere in the back mountains of Wilkes-Barre, Pa. Siren is fully self contained, as there is a building at the base of it with a generator for the siren. I have no idea what it's purpose could possibly be, it is too far from the Berwick area to be part of the Susquehanna Steam Nuclear Power Plant system. It reminds me of an installation that you would find for a military type establishment though there is none in the area that I am aware of.

image

if it has a backup generator then its a thunderbolt 7000 of some sort

I guess in a general sense it could be considered like a 7000 series except that it runs off of commercial power unless there is a power outage, the 7000 series is a self contained movable system that is designed to run solely off of the generator and would never be hooked up to commercial power. The generator for this one was definitely a later add on and not a factory set up, I looked around it and could see a standard transfer switch mounted outside to switch power over to the generator when needed. The question remains does the generator come on as soon as power is lost in the area or does it only kick on when a request is made for the siren to sound with a loss of power in the area?? Still one of the oddest things I have ever seen especially considering where it is located.