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Jeff, I'd be interested i seeing a copy of them if possible..
Thanks
Jarrett
> Hi Bernie, I used to have a Ford V6 with a Blanton Drive - there
> was no TV damper built into the 2:1 ratio drive.
> Near the end of my V6 days I contacted a guy in British Columbia
> (Mike Hirshfield) about his V6 installation which was very
> successful - he was flying exclusively on floats and had a NOS
> system which boosted his rpm to 4800 on take-off - he claimed
> better performance than Cessna's with 0-470's. Anyway he had a set
> of drawings for his reduction drive - I couldn't make sense of
> them - he said if I took them to any machine shop they would be
> able to make the necessary parts.
> If you're interested, I'll dig them out and try to get you a copy.
> Jeff
>
> From: Rotary motors in aircraft [flyrotary@lancaironline.net] On
> Behalf Of Berniehb7448@wmconnect.com
> Sent: Thursday, July 09, 2009 4:53 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Interested in cog-belt PRSUs?
>
> To George ( down under) and others interested in cog-belt PRSUs:
>
> (Bernie: "George, you're upside down!" George: "No, no, YOU'RE
> upside down!! I can see perfectly well that I and other people,
> and houses, and telephone poles, and dogs are upright! SO THERE!!"
>
> Here endeth the silly stuff.
>
> George, you wrote "Ask about weight, type of torsional vibration
> DAMPER, density of Damper, tracking adjustment, density of engine
> mount rubbers, and HP limits". Which rotary model should they
> focus on, like the 13B, 13B Turbo, the Renesis, 20B as having the
> potentially greatest demand? Same for potential demand for"normal
> vertical" engine orientation or "Plugs Up". They will have to
> expect a potential market for the effort in designing and making
> one or maybe 2 versions of a belt PSRU for the Rotary.
>
> You other guys, please join in with questions that should be
> asked, or other strategy points. I don't want to make this inquiry
> without ducks aligned. Have you ever made a technical inquiry and
> you were ignored? It's happened to me, and I was angry and
> frustrated, worst of all, I was not being taken seriously and I
> did not get the needed information.
>
> Let's hear from you. For those that have missed the beginning of
> this, it's about the first Cog Belt PSRU that I have seen with a
> torsional vibration damper instead of the driver pulley mounted
> straight on the flywheel. George found them in Brazil and sent the
> web addresses to me. The site is in Portugese only (except the
> numbers are in English - yuck yuck). We want to know a little more
> about their PSRU, and if they could be interested in trying out
> for a Rotary PSRU. We're basically asking them to spend a lot of
> money, engage in a lot of effort and sweat, and it's all a big
> risk for them:
>
> http://www.altaircoelho.com.br
>
> http://www.altaircoelho.com.br/ac53fotos.html?Submit2=Fotos+AC+53
>
> Thanks, Bernie.
>
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