Today's Message Index:
----------------------
1. 05:19 AM - Re: Re: Props again...and exhaust (Jim and Donna Clement)
2. 09:45 AM - Source for Plywood (Ruhnke, Mike)
3. 10:08 AM - Re: Source for Plywood (owner-tailwind-list-server@matronics.com [mailto)
4. 10:11 AM - Re: Source for Plywood (Fred Weaver)
5. 11:28 AM - Re: Source for Plywood (Jerry Hey)
6. 12:03 PM - Re: Source for Plywood (Ruhnke, Mike)
7. 12:54 PM - Re: Source for Plywood (Tom Cummings)
8. 06:44 PM - Re: Source for Plywood (Eric Schlanser)
Message 1
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| Subject: | Re: Props again...and exhaust |
Thomas, Before working on the prop any more change your exhaust to a crossover.
Because the Lycoming firing order, 1 3 2 4 fires each same side cylinders one
after the other, you have exhaust from one in the pipe while the other is trying
to enter. I forget the exact number, it is like 23" or 27" of pipe to clear
the exhaust for the next cylinder to have a clear pipe. This isn't the case
with the 4 cylinder Continentals as their firing order is different. The proper
crossover is the two front cylinders in same pipe and two rears in the same.
Four individual pipes are OK also, that is what is on Fred's 180hp Tailwind.
Jim C
----- Original Message -----
From: Thomas Barnes
To: tailwind-list@matronics.com
Sent: Monday, November 08, 2004 6:30 AM
Subject: Tailwind-List: Re: Props again...
Just a quick brief report on the new Sterba 69D X 75P prop on N393RC (160 HP,
mag ignition, non-crossover exhaust engine, 170 lb pilot, full tank of fuel).
Had some smooth air recently, and at 2300 MSL, 55 degrees F OAT, 2300 RPM, it
was indicating 171 mph. The airspeed seems to read about 5 mph slow on N393RC
as checked by a 3-way run with GPS, so this would give a solid 175 mph IAS at
2300 RPM with a corrected airspeed setup.... The prop is much smoother than the
previous one, and turns 2300 RPM static giving better takeoff performance.
As noted by others here, the prop does in fact seem to have a little extra meat
on it, and looks like it could be tweaked for more pitch.... but I'm happy
with it the way it is....
Just some un-scientific observations fwiw
Thomas
Message 2
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| Subject: | Source for Plywood |
Anyone know a source for 1/4 inch 5-ply Birch aircraft quality plywood besides
ACS. I need about 2 sq. ft. and ACS will only sell me 8 sq. ft. minimum.
Thanks
Mike
Message 3
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| Subject: | Source for Plywood |
Jerry Hey, what is your e-mail?
Do Not Archive
-----Original Message-----
Subject: Tailwind-List: Source for Plywood
Anyone know a source for 1/4 inch 5-ply Birch aircraft quality plywood besides
ACS. I need about 2 sq. ft. and ACS will only sell me 8 sq. ft. minimum.
Thanks
Mike
Message 4
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| Subject: | Re: Source for Plywood |
Try Sig mfg in Iowa.... Lots of the model airplane suppliers have good 5 ply Birch.
You just have to ask for it.
Weav
----- Original Message -----
From: Ruhnke, Mike
To: tailwind-list@matronics.com
Sent: Tuesday, November 09, 2004 9:44 AM
Subject: Tailwind-List: Source for Plywood
Anyone know a source for 1/4 inch 5-ply Birch aircraft quality plywood besides
ACS. I need about 2 sq. ft. and ACS will only sell me 8 sq. ft. minimum.
Thanks
Mike
Message 5
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| Subject: | Re: Source for Plywood |
On Tuesday, November 9, 2004, at 01:07 PM, Ruhnke, Mike wrote:
> Jerry Hey, what is your e-mail?
Mike, you can reach me at: j-winddesigns@thegrid.net. Jerry
Message 6
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| Subject: | Source for Plywood |
I'm getting this "Flight of the Phoenix" kind of feeling. 156 meters, rubber band
powered...
-----Original Message-----
From: owner-tailwind-list-server@matronics.com [mailto:owner-tailwind-list-server@matronics.com]On Behalf Of Fred Weaver
Subject: Re: Tailwind-List: Source for Plywood
Try Sig mfg in Iowa.... Lots of the model airplane suppliers have good 5 ply Birch.
You just have to ask for it.
Weav
----- Original Message -----
From: Ruhnke, <mailto:ruhnkem@rayovac.com> Mike
Subject: Tailwind-List: Source for Plywood
Anyone know a source for 1/4 inch 5-ply Birch aircraft quality plywood besides
ACS. I need about 2 sq. ft. and ACS will only sell me 8 sq. ft. minimum.
Thanks
Mike
Message 7
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| Subject: | Source for Plywood |
DNA: do not archive
Its-Bogus: do not forward to list
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Message 8
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s=s1024; d=yahoo.com;
b=aPVtNY4WJnoDQzg92UyFHjb0LeCTDlBVk33glwLbrQkBf0u0YQSbEWMlAZ/ccrL/YXIWb1zUsqipRGwMTMQNhDB5peu7rgTkrM/IqgOhUYcajzc2CXjwBtcHUN0YdofAXPLfhSWurt+ks2rC1vNJEm0jCxjby0fG2K91GMUFf5E=
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| Subject: | Re: Source for Plywood |
--> Tailwind-List message posted by: Eric Schlanser <eschlanser@yahoo.com>
Mike,
Try Balsausa.com
Eric
--- "Ruhnke, Mike" <ruhnkem@rayovac.com> wrote:
> Anyone know a source for 1/4 inch 5-ply Birch
> aircraft quality plywood besides ACS. I need about
> 2 sq. ft. and ACS will only sell me 8 sq. ft.
> minimum.
>
> Thanks
> Mike
>
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