Mailing List flyrotary@lancaironline.net Message #54618
From: Kelly Troyer <keltro@att.net>
Subject: Mistral 'Like' Intake
Date: Thu, 21 Apr 2011 07:50:35 -0700 (PDT)
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Jarrett,
 
     I have been following these posts with interest.............I agree with you and others that
the most urgent need for the Rotary crowd is a efficient and compact intake manifold with
a rear accessory housing with Lycoming mount ears a close second...........
 
    I am the proud owner of one of the few "Mistral" rear housing/mount plates which I paid
dearly for and waited over 2 years for "Mistral" to have a production run of parts..........
 
   The "Mistral" backplate is overly complicated and has provisions for a accessory drive
(vacuum or hydraulic pump) that our electrical homebuilt a/c do not need plus a expensive
(now unobtainable ) water-pump............It also has provision for an oil injection pump that
most flying Rotarys do not use since they premix with the fuel...........
 
  IMHO this housing can be simplified using the basic dimensions and as Charlie suggested
possibly utilizing an off the shelf water-pump such as the "Renesis".............
 
   Now to cut to the chase.............I have both the "Mistral" hsg and a 2004-8 "Renesis" hsg
so with your "Laser Scanning" ability could both hsgs be scanned then "Married" to each
other and modified into a workable hsg that would fill our needs ??................
 
Best Regards, 
      

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo




From: H & J Johnson <hjjohnson@sasktel.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, April 20, 2011 11:38:07 PM
Subject: [FlyRotary] Re: Mistral 'Like' Intake

I agree Charlie, a better way to mount the block is needed, that is product #2 that would be looked at[after the intake].  Sorta a 'walk first'

deal.   All this ties into my wish to use a rotary in the near future. I see it as stuff that 'I want/need' so if I do, then I'm sure there are others

that would be interested also.

Once I get this deal w/ the two jobs figured out things will start to get mapped out.

Jarrett Johnson

www.innovention-tech.com

 

----- Original Message -----

From: Charlie England <ceengland@bellsouth.net>

Date: Wednesday, April 20, 2011 7:27 pm

Subject: [FlyRotary] Re: Mistral 'Like' Intake

> Hi Jarrett,
>
> Until a couple of months ago, I would have been *very* interested
> in a
> replacement accessory housing with Lyc-style conical or dynafocal
> mount
> ears on it. I think that an affordable adapter allowing use of a
> 'stock'
> motor mount that comes with <insert a/c of choice here> would do
> more
> for rotaries than any other single 'piece' of after-market gear.
> It
> means one less thing to fabricate, and the Lyc style mount gets
> all the
> structure away from the engine, freeing up volume for heat
> exchangers,
> intake, exhaust, etc.
>
> A housing that could use the stock water pump & oil pump would be
> ideal
> (unlike the Mistral piece), to minimize cost. My vote would be for
> the
> Renesis.
>
> Just a thought....
>
> Charlie
>
> On 4/20/2011 6:14 PM, H & J Johnson wrote:
> >
> > *Thanks Bryan, when looking at something of this nature, it's
> always
> > the chicken and egg thing! At some point *
> >
> > *I'd love to own a rotary powered a/c so there is some
> additional
> > motivation over building a product. *
> >
> > **
> >
> > *The best senario is to get my hands on an existing manifold and
> then
> > laser scan it [I've got the equipment to do this, it's the*
> >
> > *'getting hands on' part that might be more difficult]. Once
> I've done
> > that it's a pretty straight forward move*
> >
> > *to make a similar product. There are most likely some changes
> that
> > would be incurred to improve it as well as change it such*
> >
> > *that it's not an 'exact' copy, as well as make it fit our
> > experimental uses directly.  The ability to also integrate to
> fit
> > differnt *
> >
> > *makes and models of short block is also an advantage **as I see
> it as
> > a two pc product.*
> >
> > *As far as retail price range I think your spot on, it'd be
> great to
> > have it on the market for inside of $500 however, that might be
> a bit
> > 'bullish'.*
> >
> > *It is certainly a target to shoot for.  If everything goes as
> planned
> > it will move forward and if there is a market, it's there for it.*
> >
> > *My biggest barrier to getting started here and now is getting
> my
> > hands on a sample....  :) *
> >
> > *Jarrett Johnson*
> >
> > *www.innovention-tech.com <http://www.innovention-tech.com> *
> >
> > *----- Original Message -----*
> >
> > *From*: Bryan Winberry <bryanwinberry@bellsouth.net> *Date*:
> > Wednesday, April 20, 2011 5:02 pm *Subject*: [FlyRotary] Re:
> Mistral
> > Intake Documentation? > Jarrett,
> > >
> > > I'm certainly interested in a manifold.  I recall the mistral one
> > > going for
> > > quite a lot.  Obviously the more you can sell, the less you have
> > > to ask for
> > > them.
> > >
> > > What sort of investment is required to produce say ten units?  I'm
> > > thinking5-700 dollars(sales price), but then again, I like a
> > > bargain.  Also it
> > > depends on how much profit you feel you need to make.
> > >
> > > I hope I haven't insulted you.  But I have no clue as to how much
> > > goes into
> > > cooking up one of these.
> > >
> > > I have a Renesis if you're looking for a test bed.
> > >
> > > Bryan
> > >
> > >
> > >
> > >  _____
> > >
> > > From: Rotary motors in aircraft [flyrotary@lancaironline.net] On
> > > Behalf Of H & J Johnson
> > > Sent: Wednesday, April 20, 2011 6:14 PM
> > > To: Rotary motors in aircraft
> > > Subject: [FlyRotary] Re: Mistral Intake Documentation?
> > >
> > >
> > >
> > > So it's possible that I've missed the question [I'm a bit behind
> > > on my
> > > emails] but is there a market for a Mistral type intake manifold
> > > system?I'm in the process of finalizing a casting furnace and
> > > foundry setup and
> > > have been looking at various projects in and around rotary
> > > engines. Intake
> > > manifolds have been at the top of the list. I own the needed CNC
> > > equipmentto build the molds and patterns for a project of this
> > > level, it's always
> > > just been a issue of time to dedicate to the project.
> > >
> > > Recently I was given an opportunity to have more time to do on
> > > projects like
> > > this [stop working two jobs and have multiple days off to do stuff
> > > like this
> > > with a reasonably flexible schedule]
> > >
> > > I'm curious as to the demand for a reasonably priced manifold?
> > > [Also, in the
> > > end customers mind, what would be 'reasonably priced'?]
> > >
> > > Best Regards
> > >
> > > Jarrett Johnson
> > >
> > > www.innovention-tech.com <http://www.innovention-tech.com/>
> > >
> > >
> > > --
> > >
> > >
> > >
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> > >
> > >
> > >
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> >
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> >
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