Sirens in Colorado

[1Thunderboltfan13]

Looks like i might have some sirens to film, the ones in Brush, and Ft. Morgan are active right?

[4J25]

That's caused by the blower turning the wrong direction, essentially becoming a vacuum pump instead of a supercharger. Since it's drawing air in from the chopper toward the blower, it seems to cause the chopper motor to spin faster than it normally would had the blower been turning the proper direction and creating an air load on it. This also causes a significant decrease in output volume, though still louder than it would be if only the chopper were running alone. It's a somewhat common issue on Thunderbolts with a three phase blower motor, especially if anything to do with its power source or controls has been tampered with since installation (i.e. siren was moved from original location, utility work was done inside the building it's mounted on, etc).

That makes sense, as the Baseball field thunderbolt in Wichita KS has the same wiring problem.

As does this one in my video.

[Antiwhoknows]

Looks like i might have some sirens to film, the ones in Brush, and Ft. Morgan are active right?

I've been planning on recording at least two sirens in Brush when I'm there in June. Probably won't if someone else has by then. Ahhh, I love trying to have plans.

[flatlandsparky]

@Mark N, I'm rarely in Iliff, let alone in the daytime to get pics, the bench grinder might be a sterling. @Thunderboltfan if I remember right, Brush tests their system Friday's at noon, Ive heard their thunderbolt loud and clear three miles away! I have no idea when Ft Morgan tests theirs. About five miles from brush in Hillrose is a shiny new eclipse next to the fire hall, no idea when it's tested either.

[murrfarms]

@Mark N, I'm rarely in Iliff, let alone in the daytime to get pics, the bench grinder might be a sterling. @Thunderboltfan if I remember right, Brush tests their system Friday's at noon, Ive heard their thunderbolt loud and clear three miles away! I have no idea when Ft Morgan tests theirs. About five miles from brush in Hillrose is a shiny new eclipse next to the fire hall, no idea when it's tested either.

Iliff's siren is indeed a Sterling, looks to possibly be a M10 since it seems rather large. Fort Morgan also tests their system every Friday at noon, apparently in both voice and tone. Also, I didn't know Hillrose got a new siren; they used to have a Sterling Little Giant perched atop a pole next to the fire hall for a long time. Makes sense they would replace that little guy though, can't see a siren that small covering all that large of an area.

[Tyler]

@Mark N, I'm rarely in Iliff, let alone in the daytime to get pics, the bench grinder might be a sterling. @Thunderboltfan if I remember right, Brush tests their system Friday's at noon, Ive heard their thunderbolt loud and clear three miles away! I have no idea when Ft Morgan tests theirs. About five miles from brush in Hillrose is a shiny new eclipse next to the fire hall, no idea when it's tested either.

Hey just a heads up, to do a reply press the "quote" button.