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Date: Fri, 16 Jun 2006 08:50:57 -0600
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] N821GL status report
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Hi Jason,

Thanks for the report and congratulations on getting into the air.  It
sounds like your cooling isn't too far off already considering the high
OAT's.  I would think you would cool down a little more after leveling
off though.

Bob W. (still fiberglassing the cooling plenum) 

On Fri, 16 Jun 2006 09:05:52 -0500
"Hutchison, Jason" <JHutchison2@bellhelicopter.textron.com> wrote:

> I have a little over an hour of flight time on my airplane now and thought I
> would give the group a report. After first flight I decided to change the
> exhaust system. I copied Bill Eslick and Tracy's system. I am running Bill's
> SpinTech muffler. It is much quieter in the cockpit now and ground reports
> indicate that my exhaust is slightly deeper that Bill's but very close. 
> 
>  
> 
> I have a long taxi to get to the runway. Temps at takeoff have been 150-180
> for oil and 190-210 temp for water. Reaching pattern altitude I am at 210
> -215 oil and around 225 for water temp.  After leveling off oil stabilized
> to 205 and 210 water.  Lots of room for improvement, but it has been 90 plus
> degrees for every flight. On the last flight I noticed the upper cowl is
> bulging between fasteners. I am waiting for Bill's upper louver experiment
> to decide weather to try to exit the air high or low. 
> 
>  
> 
> I am getting about 5000 RPM static and at 140 MPH the engine turns up to
> 6200 RPM. I would like to do a couple ground runs with a smaller pitch prop
> to determine if I am over-propped or just not producing power. If any one
> has a smaller pitch prop for sale or loan please let me know. I am currently
> running a Performance Props Inc. 74x88.  Takeoff rolls take about 1000 ft.
> and climb out is very flat.   
> 
>  
> 
> Yes  
> 
> 


-- 
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N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
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