I posted this not too long ago on other topics, but I didn't get many replies for them. As I was looking around on the CADL photo archive for civil defense photos, I found this picture of what I think is Big Bertha at the capital being tested and worked on. I do know that Lansing originally had a Ch...

Is the siren actually in the museum as an exhibit, or is it mounted outside somewhere? There's a historic WW2 museum hangar that has a working coded Fedelcode Model 5 that's mounted atop a building and controlled by the museum. Wendover Army Airfield is the place. It's inside the museum. There's a ...

Since it's in the museum, it shouldn't be active. If you're wondering if it could work however, it should if it was refurbished and kept inside. It still is possible it was only painted and doesn't actually work.

In theory, it could be possible to mount a simple siren upside down. You would need very strong bolts, and depending on the size of the siren you might need even longer bolts or extra reinforcement. Gravity would be pulling the siren down just the same as if it were mounted right side up, to it cou...

In theory, it could be possible to mount a simple siren upside down. You would need very strong bolts, and depending on the size of the siren you might need even longer bolts or extra reinforcement. Gravity would be pulling the siren down just the same as if it were mounted right side up, to it coul...

I found some old pictures on the CADL archive of what appears to be Big Bertha? I think I might have stumbled upon another picture of it.

Pro tip... use the measuring tool to draw circles! Google Earth Pro's drawing tools do not include an easy way to draw accurate circles. But, the ruler/measuring tool does let you measure circular areas and save them as KML, so you can do the following to draw a circle: Open measuring tool (ruler i...

I've always wanted a map that has siren coverage circles in it. I know that there are a lot of tutorials out there for circles, but all of them use the same websites or other maps, and the questions on google and other websites don't help either. The websites that are out there are really confusing ...

I've made this map and it shows its current system and old system, and added the coverages for the 2001s, 508s, and other such sirens, please let me know if there's any more locations, thanks! https://www.google.com/maps/d/u/0/viewer?mid=1k7oUSRxF2lPP7_5E5FMELWghaCki2no&ll=35.159816464588594%2C...

I was looking around on the CADL photo archive, when some photos caught my attention. I was looking around for civil defense pictures when I found these two photos: 1. (description from archive) "Men looking at heavy equipment, at either the north or south side entrance to the Michigan capitol ...