In a message dated 10/29/2002 6:35:09 PM Eastern Standard Time,
msteitle@mail.utexas.edu writes:

> At 07:11 PM 10/28/2002 -0500, you wrote:
>  >Posted for Mr Dan Ruggirello <dan_ruggirello@yahoo.com>:
>  >Hello all,
>  >I am trying to get comfortable with some reliability
>  >issues before jumping in.
>  >
>  >1.  Continuous operation at 6,500RPM.  I have seen
>  >references that these engines are capable of long term
>  >operation of 6500rpm.  Anyone have any documentation
>  >anywhere that offers insight into this?  I know that
>  >racers rev up to 8500+rpm, but this is short duration.
>  >   Does the rotary have any history in continuous
>  >moderately high rpm use (perhaps as a generator?)
>  >  
>  I once had a chart that shows bearing loads.  Its lowest at 5900 rpms.
>  Mark Steitle
>  
>  
>  >>  Homepage:  http://www.flyrotary.com/
>  
>  Tracy Crooks engine has 1274 hours on it and still going strong. I would
put TBO at least to 2,000 hours and much cheaper to overhaul than a piston AC
engine.
With special racing parts and modifications such as lightened rotors and
racing bearings, 13Bs can turn up 9,300 RPM and 12As can go over 10,000 RPM.
 Check out Tracy's web page at:

http://www.rotaryaviation.com/

Lynn E. Hanover