Sterling model M

[Archon]

Some M's were Y's meaning they had a Motor break so it could be coded. I have a Y-5 that had the brake removed but it lot's quite odd

[3t22]

I have a re-newed interest in Sterling's, so my question is about the intake cones. I have noticed "wings" and vent looking thing's off of the intake cones on different M's, and I was wondering if these were a factory option, and if they had a purpose.

The only M I've ever seen with "wings" over the intake bells was Witmer PA's old M-5 which I own . I asked Scott Yarberry about the "wings" and he said they were not factory order. The mini blind style venting over the mouth of the intake bells was factory order. Some older Ms had no "mini blinds" on the mouth of intake bells. The Y-5 has one side bigger as Joe mentioned to compensate for the brake. The main function of the "mini blinds" was to keep debris out of the siren. The louvers over the ports were there to direct the sound downwards

[Robert Gift]

Nice siren, 3t22.
They should have made cones to better couple rotor intake sound to the air and project the sound.

Also their stator covers probably caused some cancellation.

How did a siren brake of a Y allow coding?
Thank you.

[SirenMadness]

The brake rapidly slowed the chopper down, slightly simulating a sudden burst of sound, which is known as a yelp.

[Robert Gift]

The brake rapidly slowed the chopper down, slightly simulating a sudden burst of sound, which is known as a yelp.

I bet that would sound strange.
Any examples anywhere?
How long did they work before brake pads wore out?
Thanks Peter.

[Rheems1]

Dan,

Please don't sell that Sterling from Witmer.. if that ever needs to go.. please call me first so I can purchase it back. Also, please get ahold of me at [email protected] in reference to the PM I sent on here.

Thank you,


Dave Fritz

[Gil]

I recall an audio clip (this was 2 or 3 years ago) of an Allertor that had a similar braking feature. The rapid braking make it sound like a dying cow.

I would love to hear this clip again, but i dont have it anymore. Someone who has it should post it.

[Robert Gift]

I recall an audio clip (this was 2 or 3 years ago) of an Allertor that had a similar braking feature. The rapid braking make it sound like a dying cow.
I would love to hear this clip again, but i dont have it anymore. Someone who has it should post it.

Funny discription.
Did they make the Allerter that way, or was it somone's add-on device?
Solenoid valves seems like a much better idea.
Thanks, Gill

[Daniel]

Since we're discussing Sterlings, does anyone know what this model is? This is in Roseburg, Oregon, and is rarely used.

[Robert Gift]

How many ports in that siren?