Today's Message Index:
----------------------
1. 04:36 AM - Re: Jury Strut - flying wing strut attach method ()
2. 06:32 AM - Strut vibration (lshutks@webtv.net (Leon Stefan))
3. 07:08 AM - Re: Strut vibration ()
4. 07:52 AM - Re: Jury Strut - flying wing strut attach method (Dave Abramson)
5. 12:19 PM - Re: Strut vibration (Rick Holland)
6. 12:52 PM - snow day for Rick Holland (Cuy, Michael D. (GRC-RXD0)[ASRC])
7. 01:29 PM - Lift strut vibration (lshutks@webtv.net (Leon Stefan))
8. 01:29 PM - Re: snow day for Rick Holland (Rick Holland)
9. 03:07 PM - Re: Strut vibration (Rcaprd@aol.com)
10. 04:30 PM - Peanut Pietenpol (Tim Verthein)
11. 04:55 PM - Re: Jury Strut - flying wing strut attach method (PIETLARS29@wmconnect.com)
Message 1
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| Subject: | Jury Strut - flying wing strut attach method |
I think it was more to do with model radio controlled planes but I think
the idea is the same.
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Speaking of strut vibration, I remember reading in one of the old back
issues of the BPNews where a builder said BHP told him not to tighten
the bottom lift strut attach bolt tight against the fus. fitting. Leave
a little slack. this is to keep a vibrating strut from transferring its
movement to the fus. fitting causing possible Work hardening and
failure. No problem at the top fitting as the "lolly pop" fitting (as
Chuck calls it) can move with the strut. This all if you use BHPs
flattened end steel struts as shown on he plans. Leon S. Breathing a
sigh of relief that the blizzard in Colorado is going north east to Neb.
rather than east to Ks.
Message 3
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Does this apply to the bottom right strut as well?
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Leon
Stefan
Sent: December 21, 2006 9:32 AM
Subject: Pietenpol-List: Strut vibration
Speaking of strut vibration, I remember reading in one of the old back
issues of the BPNews where a builder said BHP told him not to tighten
the bottom lift strut attach bolt tight against the fus. fitting. Leave
a little slack. this is to keep a vibrating strut from transferring its
movement to the fus. fitting causing possible Work hardening and
failure. No problem at the top fitting as the "lolly pop" fitting (as
Chuck calls it) can move with the strut. This all if you use BHPs
flattened end steel struts as shown on he plans. Leon S. Breathing a
sigh of relief that the blizzard in Colorado is going north east to Neb.
rather than east to Ks.
Message 4
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| Subject: | Jury Strut - flying wing strut attach method |
Hi Lou,
Did you also use the "Skytek" struts for the CENTER Fuse to wing struts?
Cheers,
Dave
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com]On Behalf Of
PIETLARS29@wmconnect.com
Sent: Wednesday, December 20, 2006 4:31 PM
Subject: Re: Pietenpol-List: Jury Strut - flying wing strut attach method
Hi,
I used the Skytek large struts and found it was simple enough to run a # 10
bolt through the strut to hold a stainlrss steel angle to which I bolted the
jury strut. I used a very short piece of the 1" aluminum bar stock which
matches the internal 'flats' of the the large strut to back the hole site,
I drilled a hole through the block and it makes for a solid mount for the
strut connection. Looks OK too .
Lou Larsen (its 78 here in the middle of Florida)
<http://www.buildersbooks.com>
<http://www.homebuilthelp.com>
Message 5
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| Subject: | Re: Strut vibration |
Sounds logical Leon, so just attach the wing struts to the fueslage using
castle nuts and pins. Sorry you won't get to experience this blizzard, I-25
is still closed, drifts in my back yard are over four feet, Lockheed has
been shut down for two days. Reminds me of the snow days we used to have
back in elementary school in Evergreen.
Rick
On 12/21/06, Leon Stefan <lshutks@webtv.net> wrote:
>
>
> Speaking of strut vibration, I remember reading in one of the old back
> issues of the BPNews where a builder said BHP told him not to tighten
> the bottom lift strut attach bolt tight against the fus. fitting. Leave
> a little slack. this is to keep a vibrating strut from transferring its
> movement to the fus. fitting causing possible Work hardening and
> failure. No problem at the top fitting as the "lolly pop" fitting (as
> Chuck calls it) can move with the strut. This all if you use BHPs
> flattened end steel struts as shown on he plans. Leon S. Breathing a
> sigh of relief that the blizzard in Colorado is going north east to Neb.
> rather than east to Ks.
>
>
--
Rick Holland
"Logic is a wreath of pretty flowers, that smell bad"
Message 6
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| Subject: | snow day for Rick Holland |
Wow Rick, tha is really something. I heard there were about 4,700
people stuck at the airport in Denver. Glad to hear you've got some
Pietenpol working time
on your hands---or Christmas preparation time. (Quanza or happy
holiday time for you whimps or men with no backbone...of which I hope we
have none on the list:)
Hard to imagine that kind of weather when at Brodhead a few months ago
we were sweating in our tents at 2 AM !
Mike C.
Message 7
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| Subject: | Lift strut vibration |
" Does this apply to the lower right strut as well?" Harvy: "leave a
little slack" (words of BHP in the old news letter) applied to the lower
end of all 4 lift struts. No problem up top because those"lolly pop"
fittings are actually a hinge. I don't recall if the guy he was talking
to used jury struts or no jurys. BHP as you know didn't so I'm sure he
had vibration even though the streamline tubing he used was formed with
the 4 stiffener ribs made into them. None of this may even be a problem
with vibration dampening jury struts. It was interesting to look at Alan
Rudolphs lift struts at Brodhead. If you get a chance to see these
struts check them out. Interesting note on vibration--It's fun to watch
the radio antenna on my pickup as I drive. Its made of thin wire and
sometimes I see 3 waves of vibration in it as I drive. Dave
Abramson--Sorry I couldn't read your question. Yours and many others
have started showing up on my screen as dark blue text on a slightly
darker blue back ground. Maybe Santa will bring me a new computer and a
Hooters babe to show to use it. Rick--Your winter pictures kind of make
us long for those mild Ohio winters don't it. Leon S.
Message 8
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| Subject: | Re: snow day for Rick Holland |
That's right Mikey, 4700 poor slobs had to sleep on the granite floor at DIA
last night, which may have been better than the guys that had to spend the
night in their cars. The airport may not open again till tomorrow now. They
even had to cancel the Avalanche-Calgary hockey game tonight, that's the
worst part of it. Imagine spending two or three days with the wife and a few
young kids at DIA waiting for a flight out to the mid west for Christmas,
which happens to be where this storm is currently headed (you guys keep your
snow shovels handy). Glad I ain't going no place.
And yes, now that I have the driveway plowed (only took two hours) I believe
I will retire to the garage and get some work done on the wing struts Jack
sold me.
Merry Christmas (an extremely white Christmas in my case).
Rick
On 12/21/06, Cuy, Michael D. (GRC-RXD0)[ASRC] <michael.d.cuy@nasa.gov>
wrote:
>
> Wow Rick, tha is really something. I heard there were about 4,700
> people stuck at the airport in Denver. Glad to hear you've got some
> Pietenpol working time
> on your hands---or Christmas preparation time. (Quanza or happy holiday
> time for you whimps or men with no backbone...of which I hope we have none
> on the list:)
>
> Hard to imagine that kind of weather when at Brodhead a few months ago we
> were sweating in our tents at 2 AM !
>
> Mike C.
>
>
> *
>
>
> *
>
>
--
Rick Holland
"Logic is a wreath of pretty flowers, that smell bad"
Message 9
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| Subject: | Re: Strut vibration |
In a message dated 12/21/2006 8:35:25 AM Central Standard Time,
lshutks@webtv.net writes:
Speaking of strut vibration, I remember reading in one of the old back
issues of the BPNews where a builder said BHP told him not to tighten
the bottom lift strut attach bolt tight against the fus. fitting. Leave
a little slack. this is to keep a vibrating strut from transferring its
movement to the fus. fitting causing possible Work hardening and
failure. No problem at the top fitting as the "lolly pop" fitting (as
Chuck calls it) can move with the strut. This all if you use BHPs
flattened end steel struts as shown on he plans. Leon S. Breathing a
sigh of relief that the blizzard in Colorado is going north east to Neb.
rather than east to Ks.
Leon,
I've never heard that one from B.H.P. !! I don't think it would be much of a
problem if lift struts are installed. Work hardening is much more prone to
Aluminum...another reason to stick with the steel struts. I don't like the
idea of leaving those lower strut bolts a little loose...I think it would wallow
out the bolt holes.
That is some kinda storm, huh ??!! I just heard that Interstate 70 is still
closed down from yesterday !!
Merry Christmas to all !!
Chuck G.
NX770CG
Message 10
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| Subject: | Peanut Pietenpol |
Model builders....might want to consider the nifty Peck Polymers Peanut
Scale Pietenpol as well.
http://www.peck-polymers.com/html/peanuts.htm
They're available from various shops on the 'net, just happened to have
this one bookmarked.
Still studying plans...thinking about making a rib jig..and getting
ready for all four kids, two with husbands, and three grandkids to
arrive this evening for the holiday weekend! Son has been delayed in
getting into Minneapolis..apparently they had to de-ice the runway, so
his flight in was delayed..then he's got a 4 hour ride "up north" with
his sister in rain/ice. Ish!
Tim in bovey
==
You *can* repair a flip-flop with a capacitor!
==
__________________________________________________
Message 11
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| Subject: | Re: Jury Strut - flying wing strut attach method |
Dave,
Yes, thats what I did. It worked out nicely because the strut length is 10
feet; I bought 4 and carlson, (Skytek) cut them into 8', 2'' sections which
stowed nicely in my van.
I had asked them for the specs and the details of their strut design for one
of their own aircraft designs and also bought some 1" square bar stock which
mates with the internal flats of the strut and fabricated the end attachments
out of the bar stock per the detail drawing.
I lengthened the cabanes about 2" so it all worked out nicely.
Lou
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