The Siren Board

Hi! I was wondering if there are any thunderbolts in the province British Columbia, Canada. I know there's one in Alberta and MANY in Ontario, but what about my home land?

There are none known. The only Thunderbolts known in Canada are 4 units in Ontario, and 1 unit in Alberta, and 1 unit in Saskatchewan.

Snowpix wrote: ↑

Tue Oct 24, 2023 6:15 pm

There are none known. The only Thunderbolts known in Canada are 4 units in Ontario, and 1 unit in Alberta, and 1 unit in Saskatchewan.

Ok, thanks. I might do more research about it but thanks so much for your reply!

It wasn't a popular choice for Canada to use Thunderbolt sirens for the civil defence system instead they contracted McGraw Edison AKA Canadian Line Materials Industries in the 1950s to build air raid sirens similar in design to the UK Carter sirens and also used Federal Enterprises for the Model 2T and Beirsach and Niedermeyer for the Mobil Directo siren. The Canadian government wanted a siren that could withstand the Canadian winter weather and work reliably. Something to know is that (I think) the Mobil Directos did not perform well in the Canadian cold weather.
A line from the page on Herolds of Doom "Electrical malfunctions sometimes meant that the sirens went dead after a few seconds of wailing, had to be started manually, or, in several cases, accidentally sparked fires."
(Link to page - https://journals.lib.unb.ca/index.php/m ... 0452/23613)
According to the inspection page for Mobil Directos in Toronto, they had a few Mobil Directos that had blown fuses or tripped breakers/heaters. (Inspection sheet unknown date)
(I think Snowpix will correct me if I've been mistaken on something)