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pitts_pilot(at)bellsouth.
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pitts_pilot(at)bellsouth.
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 Posted: Mon Oct 29, 2007 8:51 pm Post subject: Prop Mounting-clocking |
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| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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pbesing(at)yahoo.com
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| Posted: Mon Oct 29, 2007 9:02 pm Post subject: Prop Mounting-clocking |
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Why does everyone have an overwhelming support for 2:00 then?
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pitts_pilot(at)bellsouth.
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| Posted: Mon Oct 29, 2007 9:18 pm Post subject: Prop Mounting-clocking |
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This is what I sent in another email .... but it hasn't shown up yet. I apologize if y'all get it twice! Also noted error from other post  . Fixed in red .... like my face! We all may be talking the same end result.
Nice pic!
I see where the confusion comes in. I talk about when the impulse mag fires ..... which should be in the 2:00/8:00 position as viewed from the front, not where the prop stops. As you pull the '2:00' prop blade around, the compression stroke will start and, hopefully that same blade will be at 8:00 when the impulse fires. The prop may, indeed, stop with the prop in the 2:00/8:00 position as viewed from the cockpit on a 4 cylinder engine, but I'm pretty sure it's different on a 6 cyl engine. In my mind it doesn't matter where in rotation the prop stops, it's where the mag fires and the prop 'starts' that's important. I may have been a little premature (and harsh maybe) in my reply to DP .... and I apologize. No offense meant. Again, I clock the prop on where the mag fires, not where it stops. Hope this helps!
BTW, I also caution my friends (and enemies) to get some instruction on how to properly 'hand prop an airplane. I've had some friends injured ... none fatally ..... in their education process.
Linn
Paul Besing wrote:
[quote] Why does everyone have an overwhelming support for 2:00 then?
----- Original Message ----
From: linn Walters <pitts_pilot(at)bellsouth.net> (pitts_pilot(at)bellsouth.net)
To: rv-list(at)matronics.com (rv-list(at)matronics.com)
Sent: Monday, October 29, 2007 10:22:18 PM
Subject: Re: Prop Mounting-clocking
If your prop is mounted that way, try and prop it. Do not do this alone. Have someone standing by with a cell phone to call an ambulance .. if needed. 
Linn
dougpflyrv(at)aol.com (dougpflyrv(at)aol.com) wrote:
[quote] 2 o'clock viewd from the cockpit
dp
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dougpflyrv(at)aol.com
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| Posted: Tue Oct 30, 2007 8:01 am Post subject: Prop Mounting-clocking |
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I HAVE BEEN PROPPING VARIOUS AIRCRAFT SINCE 1960 AND THEY WERE ALWAYS AT 2 O'CLOCK AS VIEWED FROM THE COCKPIT. NEVER SEEN ONE POSITIONED OTHERWISE.
DP
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dougpflyrv(at)aol.com
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| Posted: Tue Oct 30, 2007 8:04 am Post subject: Prop Mounting-clocking |
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I THINK THIS SHOULD GET ALL OF US ON THE SAME PAGE.......NO PROBLEM LINN.
DP
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davwol(at)svtv.com
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| Posted: Tue Oct 30, 2007 8:54 am Post subject: Prop Mounting-clocking |
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The clock in my airplane shop is digital... now what? hee hee
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