Today's Message Index:
----------------------
1. 08:25 AM - Re: Re: new engine (Ray Krause)
2. 11:51 AM - Alternative Engine Round-Up (taildrags)
3. 02:13 PM - Re: Lift struts (danhelsper@aol.com)
4. 09:16 PM - Re: Lift struts (taildrags)
Message 1
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Thanks, Oscar. If I cannot find one, I will have one made out of steel. I will
contact the fellow who overhauled the engine and see if he might have mine. He
has many A-65s lying around. Maybe he has one I can purchase. I am sure I had
it at one time.
Thanks,
Ray
Sent from my iPad
> On Sep 21, 2014, at 9:52 PM, taildrags <taildrags@hotmail.com> wrote:
>
>
> Ray; the crush plate on my A65 was made of steel and it appeared to be a sub-part
of the hub assembly. The objective is to have all of the bolts apply force
evenly to the face of the wooden prop so the wood doesn't crush in the immediate
area of the bolt head, so if you make a new one out of aluminum (or steel),
don't make it too thin or it will flex when you torque the bolts down. In
fact, the best thing to do is to see if you can find another airplane with a
tapered shaft and crush plate on it, then use that as a go-by.
>
> --------
> Oscar Zuniga
> Medford, OR
> Air Camper NX41CC "Scout"
> A75 power
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=430902#430902
>
>
>
>
>
>
>
>
>
>
Message 2
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| Subject: | Alternative Engine Round-Up |
>From Pat Panzera, editor of Contact! Magazine:
====================================
Friends,
This Saturday's the big day.
We've moved our annual event to Southern California, to a beautiful non-towered
airport that's easy to get to (French Valley - near Temecula). The paved runway
is wide and long for the fast-glass, and the airport is low-and-slow friendly-
being the home airport of EAA Chapter 1279, known for building a beautiful,
Corvair-powered Pietenpol.
The website has been updated with the most current information, and a plea for
you to RSVP if you are planning to attend the casual dinner on Saturday night:
http://www.contactmagazine.com/roundup.html
That's probably the most important reason for bothering you with yet another announcement,
we really need to get a good headcount for the dinner by today- so
if you are planning to attend, please let me know asap! Click the RSVP link on
the webpage or fire off an email directly to me editor@contactmagazine.com and
let me know how many in your party.
Thanks!
And I humbly apologize if you get this message more than once. It just means that
you and I are on multiple email lists together.
Oh yeah! PLEASE forward this message to anyone you think might be interested in,
especially email groups that are about homebuilt aircraft.
Pat Panzera
editor@contactmagazine.com
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=430923#430923
Message 3
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Bill,=0A=0A=0AI used the Carlson "small" lift struts. So far s
o good. Larry Williams (Top Curmudgeon) also used these. If
he was still on this list, you could give him the business
for deviating from plans! I personally did no strength calc
ulations on these. =0A=0A=0ADan Helsper=0ALoensloe Airfield=0APuryear,
TN=0A=0A=0A=0A-----Original Message-----=0AFrom: Bill R <brcapper@gma
il.com>=0ATo: pietenpol-list <pietenpol-list@matronics.com>=0ASent: Sat,
Sep 20, 2014 8:54 pm=0ASubject: Pietenpol-List: Lift struts=0A=0A=0A
>=0A=0AI am trying to determine what material to use for my
lift struts and cabanes.=0AIn the running are 4130 streamline
tubing from Aircraft Spruce, aluminum =0Astreamline from Carlso
n and 4130 tubing streamlined the old fashion way.=0AIt looks
like the 4130 streamline tubing from Aircraft Spruce would cos
t well =0Anorth of $1500. Their catalog did not list any l
oad bearing capabilities for the =0Avarious sizes of tubing.=0AT
he Carlson website does list load bearing capabilities,but in
terms I am not =0Afamiliar with. The cost savings of aluminu
m over the steel streamline tubing is =0Anot insignificant.=0ATh
e old fashion way of streamline steel tubing is not to app
ealing to me, but I =0Amight be talked into it.=0AThe real
questions for me have to do with understanding the loads lik
ely to be =0Aimposed on the lift struts of an Aircamper an
d whether or not the aluminum strut =0Amaterial from Carlson
is up to the task. I know there is at least one Aircampe
r =0Aflying with the aluminum struts, Dan Helspers'. Dan and
his beautiful plane were =0Afeatured in the summer issue of
Contact magazine. As the article was not of an =0Aengineering
nature there was no mention of any research Dan may have d
one before =0Adeciding to use the aluminum struts.Not being on
e to to risk my neck or anyone =0Aelse's, I would prefer
to have some data before I follow someone else's example. =0A
Any thoughts would be appreciated, but please keep in mind y
ou will be replying =0Ato a simpleton,not an engineer.=0A=0A=0A=0A
=0ARead this topic online here:=0A=0Ahttp://forums.matronics.com/viewtop
===========================
===========================
===========================
- List Contribution Web Site -=0A_
-Matt
===========================
==========0A=0A=0A=0A=0A =0A
Message 4
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Dan;
I realize that your photos are from when you were in the fit-up stage, but the
lift strut 2 image illustrates a very good example of some of the places where
a built-to-plans Piet makes it difficult to install hardware the way all of the
"best practices" books (Bingelis included, Mikee!) say to do it... bolt heads
up or forward.
Where the lift strut lower fork attaches to that tab, if you use the proper length
AN bolt you can't get it into the fitting... the fuselage side fabric is just
too close and you have to install the bolt with the head down or else try
a shorter bolt with a shallow "shear nut" or castellated nut and see if you get
enough grip length. This is only one of several places where the same condition
can occur. There is also a place where the top end of the strut X-brace
cable requires a clevis pin to secure it to the fitting, but the end of the strut
is too close to the attach point for the cable attach fitting and the pin
has to go in with its head down.
On the first annual that my plane had (the A&P was not very familiar with experimentals),
he flagged those and a number of other spots where the "head up or
forward" rule was not followed. I wanted to have him demonstrate how he would
install that hardware, but refrained since he didn't ground the airplane because
of those.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=430955#430955
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