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Re: Federal Enterprises 500 Siren.
Posted: Mon Jul 04, 2016 4:27 pm
by Тһundеrbοlt1000Tfan
DJ2226 wrote:Тһundеrbοlt1000Tfan wrote:Are there any photos of the chopper and stator of a 500SH-TT online?
Credit to Ian M. This is the one from Byron, GA.

Whoa. It looks almost like a smaller rotor within a larger one. It vaguely reminds me of the rotor of a P-50. Do you know when Ian and Jeb plan on working on that thing?
Re: Federal Enterprises 500 Siren.
Posted: Fri Aug 12, 2016 9:43 pm
by GabrielFairchild
Great Article!
Re: Federal Enterprises 500 Siren.
Posted: Wed Aug 17, 2016 11:44 pm
by Snowcube
The 10/12 version is probably my most favorite siren. It just has a beautiful smooth sound.
Is the new 508 related to the 500 series in any way?
Re: Federal Enterprises 500 Siren.
Posted: Thu Aug 18, 2016 12:45 am
by Chicagosiren-hunters
As far as I'm concerned, no. IIRC, 500 in "508" is the intended Hz and 8 is for port count.
Re: NNN/AAAAAAA
Posted: Fri Nov 25, 2016 1:42 am
by FS Rotor
It seems the info has been removed, same with the Biersach & Niedermeyer article. Is there any reason why?