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Seabrook Whelen Trucks (Possible WPS-4000-II)

Fri Dec 06, 2019 6:16 am

While digging around in the archives on the NRC’s website I came across a rather odd picture on one of the documents (see below). The only context the article gave to the photo was: Seabrook siren trucks. The siren is composed of what looks to be two WPS-4008 heads attached upside down to a single rotator. I highly suspect that these are what Whelen advertised as the WPS-4000-II, though I could be wrong. A quick google search for “Seabrook siren truck” brought up a few articles from ‘88 and ‘89 discussing Seabrook’s plan to use truck mounted sirens in the event of an emergency. I wasn’t able to find any posts talking about these strange units, so forgive me if this is already common knowledge.

Image

Photo Source: US NRC: Fundementals for Emergency Preparedness (Page 147) (https://www.nrc.gov/docs/ML1111/ML111110898.pdf)

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4J25
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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Fri Dec 06, 2019 6:25 am

That. Is. Beautiful.

They are indeed 4000-IIs!
Christian Bricking, living in the Cincinnati Metropolitan Area.
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uncommonsense

Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Fri Dec 06, 2019 6:49 am

I just died a little inside. That's it. The 4000-II was described as two 4008 heads joined together. That's what we're seeing. Whoa freaking dang.

Don't let anyone say everything has been discovered.

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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Fri Dec 06, 2019 3:14 pm

That's amazing! I wonder how they made those.
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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Fri Dec 06, 2019 7:56 pm

https://www.washingtonpost.com/archive/ ... 4a50252e9/

"Seabrook officials are working on plans to mount sirens on trucks and helicopters."

Excuse me, wtf?

Edit: They are likely referring to helicopter mounted loudspeakers. (Probably, anyway.) You can find numerous examples of helicopter-mounted loudspeakers by simply looking up "helicopter mounted loudspeaker" on google.

This document references helicopter mounted loud-speakers a couple of times:
https://books.google.com/books?id=xClPA ... en&f=false
Last edited by Valra Bellkeys on Sat Dec 07, 2019 6:16 am, edited 1 time in total.
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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Sat Dec 07, 2019 5:30 am

Whoa that is crazy! What a find!

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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Mon Jan 06, 2020 11:06 pm

Can the 4000-II being pole mounted? I was wondering this
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Re: Seabrook Whelen Trucks (Possible WPS-4000-II)

Tue Jan 07, 2020 4:41 am

Since the post was bumped I figured I'd share my map of the current system. So far I've mapped 99 sirens out of the 121 in the main system, excluding the 2910 at the plant itself.

https://www.google.com/maps/d/u/0/edit? ... 49216&z=11

I read about their system having truck mounted sirens a while back and speculated that the sirens were simply 4008's. I'm pretty sure the 3000's were installed before the 4000's went up, as they were fitted with pre-ESC-864 controllers (the EC-3000? or whatever they were called.). I'm also speculating that when they axed the idea of truck mounted sirens they split the 4000-II's apart and reinstalled them as normal 4000's. There are plenty of 4000's in their system, so there's a chance that this is where they initially cam from.
jacob585 wrote:
Mon Jan 06, 2020 11:06 pm
Can the 4000-II being pole mounted? I was wondering this
Considering that the rotator is the same one used on the normal 4000 / 4004/8 I'd venture to say yes since it would fit on the normal mounting bracket. It would probably have to be on a 60 or 70 foot strong pole to support the weight and keep from blasting everyone's ears much like the P-50 was and the current T-135 is. I think most of the 4008's that went up after this system were installed on 60 foot poles. Plano's former 4008's were installed in 1993 and pretty high up in the air from the pictures I've seen of them.
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