Calhan, CO 550-AT (pics inside)

[PGM]

According to Federal Signal, I was told that these sirens were designed back in the mid 1950s and that Federal only made like 45 of these sirens, before they discontinued the model in 1961

[Adam Pollak]

The places I have seen these sirens, either in person or through pictures online would be: Calhan, CO; Colorado Springs (area), CO; St. Louis County, MO; Yonkers, NY; Newark, NJ.

The St. Louis County one has already been posted in this forum, but I cannot remember if I ever posted the one I got a picture of in Newark. here it is: (sorry for the ultra crappy quality...it was a drive-by on a rainy day)

[Robert Gift]

Yes, Adam, you posted that one before.
Thank you.

Are the relectors the same size?
Or sized for their pitches?

[AllSafe]

How big is the motor?

[Adam Pollak]

From the 500s I've seen in LA County, the reflectors look exactly like the uppermost shroud of a Model 5 housing. I would assume also that the cone reflectors on the wider 500s as well as the 550s are made using a similar concept to save costs. (aka 2T22 cap being top of Model 2 housing)

[djscrizzle]

The places I have seen these sirens, either in person or through pictures online would be: Calhan, CO; Colorado Springs (area), CO; St. Louis County, MO; Yonkers, NY; Newark, NJ.

The St. Louis County one has already been posted in this forum, but I cannot remember if I ever posted the one I got a picture of in Newark. here it is: (sorry for the ultra crappy quality...it was a drive-by on a rainy day)

If you can, go back and get a better pic... I'm truely interested.
The siren in (Colorado Springs area) is located in Manitou Springs, located four miles west of Colorado Springs. They are a separate municipality, and unfortunately, they do not test their siren.

[Oldiesmann]

I do have to wonder why these weren't very common, as they're quite effective.

[EOWS 612]

The places I have seen these sirens, either in person or through pictures online would be: Calhan, CO; Colorado Springs (area), CO; St. Louis County, MO; Yonkers, NY; Newark, NJ.

The St. Louis County one has already been posted in this forum, but I cannot remember if I ever posted the one I got a picture of in Newark. here it is: (sorry for the ultra crappy quality...it was a drive-by on a rainy day)

Is that siren still there? Where is it in St. Louis?

[djscrizzle]

Now in Google StreetView:
http://maps.google.com/maps?f=q&hl=en&g ... 6804484464

Might have to pan left a little, but the siren is plainly obvious above the building tops.

[Oldiesmann]

Now in Google StreetView:
http://maps.google.com/maps?f=q&hl=en&g ... 6804484464

Might have to pan left a little, but the siren is plainly obvious above the building tops.

For those who don't like long URLs... http://tinyurl.com/calhan-550at