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Date: Sat, 26 Apr 2008 10:24:09 -0500
From: Charlie England <ceengland@bellsouth.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: "Mistral" backplate
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Kelly Troyer wrote:
> Todd,
>    The "Mistral" engine is not based on the Renesis but on the 89-91
> 13B to my knowledge........They now produce all parts (paper trail)
> for the certified version of their engines so have been able to build
> parts with out any of the compromises made by using stock Mazda
> parts in their early experimental engines.......Therefore the new
> production backplates wll not adapt to the stock Mazda 13B and
> all early backplates were used on engines sold and a few were sold
> to experimenters........I have never asked "Mistral" how many were
> sold to guys like me..........FWIW 
> --
> Kelly Troyer
> "Dyke Delta"_13B ROTARY Engine
> "RWS"_RD1C/EC2/EM2
> "Mistral"_Backplate/Oil Manifold

Since the original is of no use to them, maybe they'd put the molds 'in 
the public domain'. :-)

Seriously, if they'd just release the CAD files used to make the parts 
for the castings, there are people who could (& probably would) do the 
casting & machining for a lot less money than the large scale production 
houses would charge.

Then there's Ken Powell's technique of welding up the ears in 4130, made 
to bolt on to the side of the engine instead of the accessory case.

Charlie