Today's Message Index:
----------------------
1. 06:11 AM - Re curved tailpipes (Douwe Blumberg)
2. 08:13 AM - Re: What's up Doc? (Ryan Mueller)
3. 03:23 PM - Bungee vs. Coil Spring (Charles Burkholder)
4. 03:38 PM - Re: Bungee vs. Coil Spring (Jack)
5. 05:16 PM - Re: Bungee vs. Coil Spring (jarheadpilot82)
6. 06:00 PM - Re: Bungee vs. Coil Spring (Jeff Boatright)
7. 08:35 PM - Re: Bungee vs. Coil Spring (Brian Kenney)
8. 09:34 PM - Re: The 'Piet Builder's Bible' Project - Want In? (taildrags)
Message 1
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| Subject: | Re curved tailpipes |
Hey Oscar,
Actually, I discovered I could put both ends under the base of my shop hoist
and then use the hoist to "raise" sections a little at a time all along the
length of the pipe. Took less than thirty minutes for each!
Douwe
Time: 09:18:05 PM PST US
Subject: Pietenpol-List: Re: Blakesburg adventure
From: "taildrags" <taildrags@hotmail.com>
Douwe: whoa-! I had never seen your airplane from an angle that showed the
curvature in the exhaust pipes. I always assumed that they were straight
all the way back to the offset kickers past the rear cockpit. How'd ya do
that??!!
Pack them full of sand and then gently bend them around a big water tank or
something?
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446954#446954
Message 2
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| Subject: | Re: What's up Doc? |
Glad to see you're still involved, Doc...
Maybe I'm out of the loop on things; did something happen with Andrew Pietenpol? Last I knew he was continuing the family's sale of plans at http://www.pietenpolaircraftcompany.com...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446970#446970
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| Subject: | Bungee vs. Coil Spring |
Hi folks.
I am building the steel split axle landing gear for my piet. The main
frame is fabricated and tack welded and I am ready to fabricate and
install the suspension system. Originally I went for the steel coil
spring system for ease of construction and 'weld and forget' rather then
having to install and replace bungees. Having ordered and received the
springs I want to hear peoples input on using them for a Piet. They seem
heavy and too hard-springed for a light aircraft for a Piet but maybe
that is not the case? Any input on them versus bungees would be
appreciated.
Thanks
Charles Burkholder
Message 4
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| Subject: | Re: Bungee vs. Coil Spring |
Charles,
I have the springs on my gear. I bought a project and finished it. The original
springs were way too soft. I contacted Wag Aero who sells a replacement spring
option for the Cub bungees. They couldn't sell me the springs but gave me a
number to call. I ordered the springs and they were a direct bolt on replacement.
They seemed too strong but after flying with them they are just right.
Good luck,
Jack
Model a ford
Wire wheels
Phase 1
Sent from my iPad
> On Sep 10, 2015, at 7:27 PM, Charles Burkholder <born2fly@abcmailbox.net> wrote:
>
>
> Hi folks.
> I am building the steel split axle landing gear for my piet. The main frame is
fabricated and tack welded and I am ready to fabricate and install the suspension
system. Originally I went for the steel coil spring system for ease of construction
and 'weld and forget' rather then having to install and replace bungees.
Having ordered and received the springs I want to hear peoples input on
using them for a Piet. They seem heavy and too hard-springed for a light aircraft
for a Piet but maybe that is not the case? Any input on them versus bungees
would be appreciated.
> Thanks
> Charles Burkholder
>
>
>
>
Message 5
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| Subject: | Re: Bungee vs. Coil Spring |
Maybe this will help answer some of your questions.
http://flycorvair.net/2012/10/27/new-die-spring-landing-gear-on-a-pietenpol-10-a-m-4-p-m/
--------
Semper Fi,
Terry Hand
Athens, GA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446983#446983
Message 6
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| Subject: | Re: Bungee vs. Coil Spring |
My Piet had bungees originally. They wore out, I had trouble replacing them. I
substituted springs. Better in every way. I'd never go back to bungees. HTH and
YMMV.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446985#446985
Message 7
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| Subject: | Re: Bungee vs. Coil Spring |
Charles your question is a typical one. What compromise is the best? I have a straight
axle so bungees are the only practical choice. They work very well. If
you want to absorb energy then rubber bands are much better per lb of material
than steel. In a split gear the amount of energy that can be absorbed is limited
by the volume of spring material in the space and therefore both are inadequate
to do the job. Therefore the tires play an important role because you
could argue that the gear is semi-rigit. Solid gear works fine with good piloting
skills so semi-solid work even better. If you want to compare steel springs
have a look at how big they are on an Aeronca champ and they have a shock as
well. The choice is yours as there is no correct answer and no incorrect answer.
Sent from my iPad
> On Sep 10, 2015, at 6:23 PM, Charles Burkholder <born2fly@abcmailbox.net> wrote:
>
> Hi folks.
> I am building the steel split axle landing gear for my piet. The main frame is
fabricated and tack welded and I am ready to fabricate and install the suspension
system. Originally I went for the steel coil spring system for ease of construction
and 'weld and forget' rather then having to install and replace bungees.
Having ordered and received the springs I want to hear peoples input on
using them for a Piet. They seem heavy and too hard-springed for a light aircraft
for a Piet but maybe that is not the case? Any input on them versus bungees
would be appreciated.
> Thanks
> Charles Burkholder
Message 8
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| Subject: | Re: The 'Piet Builder's Bible' Project - Want In? |
Clif: thank you for the book recommendations. I've always wanted to learn how
to sail and "The Craft of Sail" sounds like a wonderful addition to my reading
stack for this fall and winter! I'll nestle it in between Hornblower and Aubrey
& Maturin books ;o)
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446986#446986
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