Mailing List flyrotary@lancaironline.net Message #24391
From: rijakits <rijakits@cwpanama.net>
Subject: Re: [FlyRotary] Re: Forward from Mistral Engines SA
Date: Thu, 23 Jun 2005 21:24:54 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Last time I corresponded direct with Francois, he indicated that they had trouble to get their turbo-provider into gear to produce their test turbos.
 
It seems Turbonetics (or their mother company) bought the only aircraft turbo maker (would that be Rajay?) so these guys have everything in their hands now!
---------
At some time I suggested to look into  (heavy) truck turbos, as these are built  to work near top power for extended periods. Francois was interested to look into this, but I didn't hear anything about this anymore. (These turbos are of course way heavier than what we would like, but for Mistral the matter was not weight at this time but the right configuration of the turbo. Once that was found they always could go to make the huffer lighter...) 
 
That Turbonetics owns the only "certified aircraft turbo maker" was stated by Francois:
 
Based on the Turbo discussions on this list and the ability of Turbonetics to fine tune and custom make applications, I suggested to use this "non-certified" source and once they have the turbo configured the way they need, to go to one of the "certified" turbo maker and tell them to " copy and certify" the test-piece.
Francois answered that there is only one "certified aviation turbo" maker and it belongs to his "non-certified"-source - Turbonetics!!
 
Probably not a good move to tell the same company to copy their own product!!
 
As far as I know there will be turbo-versions of all engines - 2- and 3-rotor, gas and Jet-A. Jet-A will be only a few lbs heavier due to the heavier injection system. Power-levels are the same. The highest at this time will be the turbo-3 rotor at 360 hp.
 
Thomas J.
 
----- Original Message -----
Sent: Thursday, June 23, 2005 5:14 PM
Subject: [FlyRotary] Re: Forward from Mistral Engines SA

Dave,
 
Given that they are apparently going to be offering higher HP configurations, I would bet there is a turbo in the future.  However, I'll bet the intake will be considerably different from their NA configuration.
 
Ed A
----- Original Message -----
Sent: Thursday, June 23, 2005 4:22 PM
Subject: [FlyRotary] Re: Forward from Mistral Engines SA



On 6/23/05, Ed Anderson <eanderson@carolina.rr.com> wrote:
I find it interesting that after all of their experimenting with injector positions - they chose to have all four very close to the intake port.
 
Ed A
----- Original Message -----
Sent: Thursday, June 23, 2005 2:42 PM
Subject: [FlyRotary] Re: Forward from Mistral Engines SA

 
 
I was tempted to pester them directly, but it sounds like he'll post info when it's available, so I'll leave him alone.  If you see an update, please pass it along.  
 
Thanks,
Rusty (sign me up for one) 
 
Rusty you can see the fit on their web site www.mistralengines.com They fit very closely over the top of the engine. The picture shows the old manifold which fits up the same the new shape is slightly different of course.
Bill Jepson
The other interesting thing is that there is now longer any room for the stock turbo, which is something I thought that they were using for some of their engines.  Do you think they have decided to do away with the turbo all together?


--
Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/vp4skydoc/index.html
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