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Message-ID: <1c23473f0611301009r2d4860dard0b4431fa314b48a@mail.gmail.com>
Date: Thu, 30 Nov 2006 10:09:02 -0800
From: "David Leonard" <wdleonard@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Prop windmilling
In-Reply-To: <list-1624752@logan.com>
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When I overheated my engine and it quit, there was very little compression
left, though I didn't know it at the time.  I must admit that I even wasted
some time trying to get it to stop windmilling.  I slowed the RV-6 down to
near stall speed but the prop just kept windmilling.

During my flight test period I did some testing with the ignition off.
Windmilling would stop somewhere around 90 kts and start again somewhere
around 100 kts.  Very easy to air start.

I am sure that the low compression accounted for the difference... something
to think about when calculating glide distances.

-- 
David Leonard

Turbo Rotary RV-6 N4VY
2.17:1  PSRU
wood 68x74 prop
My websites at:
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/_ht_a/vp4skydoc/index.html
http://leonardiniraq.blogspot.com

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<div>
<div>&nbsp;</div>
<div>When I overheated my engine and it quit, there was very little compression left, though I didn't know it at the time.&nbsp; I must admit that I even wasted some time trying to get it to stop windmilling.&nbsp; I slowed the RV-6 down to near stall speed but the prop just kept windmilling.
</div></div>
<div>&nbsp;</div>
<div>During my flight test period I did some testing with the ignition off.&nbsp; Windmilling would stop somewhere around 90 kts and start again somewhere around 100 kts.&nbsp; Very easy to air start.</div>
<div>&nbsp;</div>
<div>I am sure that the low compression accounted for the difference... something to think about when calculating glide distances.</div>
<div><br>-- <br>David Leonard<br><br>Turbo Rotary RV-6 N4VY</div>
<div>2.17:1&nbsp; PSRU</div>
<div>wood 68x74 prop<br>My websites at:<br><a href="http://members.aol.com/_ht_a/rotaryroster/index.html">http://members.aol.com/_ht_a/rotaryroster/index.html</a><br><a href="http://members.aol.com/_ht_a/vp4skydoc/index.html">
http://members.aol.com/_ht_a/vp4skydoc/index.html</a><br><a href="http://leonardiniraq.blogspot.com">http://leonardiniraq.blogspot.com</a> </div>

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