Mailing List flyrotary@lancaironline.net Message #55025
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Bell Housing down under
Date: Fri, 13 May 2011 18:33:50 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Folks,
 
George Lendich (who for some reason apparently can no longer subscribe to the list) asked me to post their effort to combine a bellhousing mount and motor mount.  It appears to be set up to mount Tracy's gear box on it.
 
See his photos.  I know nothing more, but here is George's e mail if any want to discuss it with him
 
 
Ed

Sent: Friday, May 13, 2011 6:06 PM
Subject: Re:

Ed,
Show the boys my attempts - see attached.
This is the one Butch and I worked on. I sent him one for testing
and it passed with flying colours.
The big cost is in machining after it's cast. Unless like Tracy you can machine in house.
Can't beat the Al plate for strength though, even it it looks a bit agricultural, that's why Tracy went that way.
 
I do like the Mistral design, however they did it in magnesium fort weight savings, Butch was concerned about
the likelihood of fire with magnesium.
Seems like everything is a trade-off.
 
A bellhousing made from Titanium would be the go - strong as steel and half the weight.
Someone with the skills could manufacture them from thin plate, reinforced with gussets where necessary.
In the end this would be about the same weight as Al, but stronger.
 
George (down under)

Sent: Friday, May 13, 2011 9:54 PM
Subject: Re:

Hi George,
 
There has been a lot discussion about making a frontcover (incorporating motor mount attachements) similar to the one that Mystral made for their aircraft engine.  Someone apparently has access to casting resources.  So a lot of talk about exactly what this front cover mount should have - water pump? type motor mount? other accessories, etc.
 
That's been about it for the last couple of weeks.
 
Ed

Sent: Friday, May 13, 2011 3:48 AM

Ed,
Anything exciting happening with the Rotary development?
George Lendich
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