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From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] trimmed prop
Date: Mon, 30 Apr 2007 20:43:45 -0400
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
X-Mailer: Apple Mail (2.752.2)

Beautiful job on the plane Steve. Sorry about your new prop, but you  
were lucky nobody got hurt. 2 months ago I watched the owner of the  
new Ravin 500 taxi around with the tow bar bouncing around. He was  
lucky did not hit his brand new constant speed
prop. The whole time he was oblivious to the tow bar trying to get  
into the prop. Only by chance he was not headed for takeoff, or he  
would have attempted to fly with it? So, don't feel bad about it.  
It's only money :)
Buly

On Apr 30, 2007, at 5:01 PM, sboese wrote:

> On Wednesday of last week I made my first XC flight with my 13B  
> powered
> RV6A.  The flight was from Laramie, WY, to Benson, MN, with a distance
> covered of 507 nm.  It took 4hr 15 min non stop using 30.4 gal of fuel
> leaving 7.6 gal reserve.  We started at an initial gross wt of 1796  
> lb and
> cg of 73.2 in. That was my first excursion to density altitudes  
> less than
> 7000 ft.  It was really fun to see climb rates over 1000 fpm with  
> 1700 lb
> gross wt at 3200 ft density altitude and to feel the increased  
> acceleration
> on take off.  Static rpm at 3200 ft density altitude was 4870 with  
> 27 in MAP
> and showing 11.1 gal/hr fuel consumption rate.  That makes me think  
> I could
> use a prop with less pitch.  My extrapolation of the mixture table  
> for the
> EC2 with the snubbers installed worked very well with the higher  
> manifold
> pressures that had not been tried previously with my setup.  That  
> was good
> news.
>
> The bad news is what happens when I forget to remove the tow bar  
> and feed it
> to the propeller (see attached photo).  No injuries or other damage  
> occurred
> as far as has been determined at this point.  The 12 hour drive  
> back home
> yesterday gave me plenty of time to reflect on my stupidity.  I  
> concluded
> that my "experiment" was probably not the best way to investigate  
> the effect
> of a smaller prop.  Needless to say, if someone has upgraded to the  
> 2.85
> drive and has a prop for a 2.17 drive for sale, I would be  
> interested to
> know about that.
>
> Sheepishly,
>
> Steve Boese
> <trimmed prop.JPG>
> --
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