I have now uploaded a video of my spin-up to YouTube: https://youtu.be/MXrLMZRGBto Compare its wind-down to this video: https://youtu.be/uiC1ob-5HYU Hoping I can figure out why the motor is acting like this. Even when it's 70 degrees F outside it will wind down much quicker than the above 6-minute v...

I was playing around with my Model 5 today. My wife got me a new angle grinder for Christmas, so I fitted it with a thick rubber backing pad and used it to spin up my siren. It's the loudest it has ever been since I've owned it! While spinning it up, I noticed that it has a fast wind down compared t...

When sizing a VFD for phase converting, should it be twice the horsepower of my Model 5? Also, can all VFDs convert single phase to 3 phase?

Last summer, I acquired a late 40s/early 50s Federal Enterprises Model 5. Now that it's getting warmer out, I plan on working on getting it running. I'm hoping to have the siren running by July 4 this year. Since my Model 5 needs 240 V 3-phase power, I need to get a phase convertor of some sort. I h...

This is the actual episode listed on IMDB: http://www.imdb.com/title/tt6706514/?ref_=ttep_ep15

Unfortunately, I've been unable to find anything documenting filming locations.

My wife was watching some older episodes of NCIS: New Orleans. She was watching the season finale that aired in May of 2017, when I noticed an underside view of a FS 2001 sounding off and rotating. I think it was set up to be a flood plane siren. I can't remember at what time it was shown, but it wa...

Just bumping this hoping to get more input. I'm hoping to get an electrician to look at the motor to tell me if it will still run. I hooked a multimeter up to the motor's wires a few different ways and spun the chopper and got some voltage out of it.

The rotor looks like it's aluminum, judging by the oxidation. Weren't some of these rotors made with some kind of magnesium alloy?

What about it leads you to believe that it's a late 1940s siren?

If it helps anyone, the siren does not have an intake cone like the manual PDF that I have shows.

Here's a picture of the siren as I found it. Not only was it bashed up, but the rust ate up the sheet metal pretty bad, especially around the vent covers. The access panel covers were nowhere to be found. They probably disappeared years ago, either being worked off by the weather or a technician mis...