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Subject: RE: [FlyRotary] Re: The Final? Story on the Engine problem
Date: Tue, 12 Apr 2005 15:18:37 -0500
Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC081A2@MAIL01.austin.utexas.edu>
Thread-Topic: [FlyRotary] Re: The Final? Story on the Engine problem
Thread-Index: AcU/m9rSdCgwC6RHSJuk2/e4thsk3AAAKlYA
From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Ed,
Can you see any evidence at the fracture of a developing hairline crack,
or is it a fresh break? =20

Mark S. =20

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Tuesday, April 12, 2005 3:11 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: The Final? Story on the Engine problem


----- Original Message -----
From: "echristley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, April 12, 2005 3:40 PM
Subject: [FlyRotary] Re: The Final? Story on the Engine problem


>
> >Photo  Apex Departing Slot clearly shows where the missing piece of
the
> apex
>
> >seal bent over the straight edge of its slot when it departed.
Apparently
>
> >when it left the clearance was getting less and the departing edge
was
>
> >apparently caught between the lip of the slot and the rotor housing
forming
>
> >a flatten corner.
>
> >
>
> Ed,
>
> How well does the position of the break line up with your exhaust
port?
Are
> there any tiny chips near the break that look like they may have been
around
> a while?
>
> I'm thinking of the possibility of a piece of debris chipping the seal
in
> the vicinity of where it flexes as it crosses over the exhaust hole.
Stress
> riser, being the unpredicable ^%&# they are, will always give out just
as
> you cross the limit of not being able to glide home.
>

A good point, Ernest, I'll have to go back out and check the pieces in
better light or better yet bring them in the house where i have a couple
of
magnifying glasses.

Ed


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