Today's Message Index:
----------------------
1. 12:55 AM - Lift strut angle (rod wooller)
2. 03:04 AM - Re: Lift strut angle (Peter W Johnson)
3. 04:36 AM - Re: Lift strut angle (walt evans)
4. 06:27 AM - torque values (Douwe Blumberg)
5. 07:22 AM - Re: Raising the wing (Larry Nelson)
6. 07:43 AM - Re: Lift strut angle (Phillips, Jack)
7. 07:48 AM - Re: Raising the wing (Phillips, Jack)
8. 07:48 AM - Bellcrank question (Rick Holland)
9. 08:14 AM - Re: Raising the wing (Les Schubert)
10. 08:40 AM - Accurate Wood List (Derek Doyle)
11. 09:51 AM - Varnished Wings (Galen Hutcheson)
12. 10:52 AM - Re: N327BC First Flight Today (Hodgson, Mark O)
13. 03:00 PM - Brodhead (lshutks@webtv.net (Leon Stefan))
14. 03:28 PM - Re: Varnished Wings (Doyle Combs)
15. 04:08 PM - Re: Varnished Wings (Galen Hutcheson)
16. 04:14 PM - Re: N327BC First Flight Today (Galen Hutcheson)
17. 04:28 PM - Re: Varnished Wings (Jim Malley)
18. 05:37 PM - Re: Brodhead (Cinda Gadd)
19. 06:16 PM - Helicopter perfection (off-topic) (Oscar Zuniga)
20. 07:07 PM - Re: Helicopter perfection (off-topic) (DJ Vegh)
21. 07:26 PM - Re: Helicopter perfection (off-topic) (Larry Ragan)
22. 08:17 PM - Re: Lift strut angle (Rcaprd@aol.com)
23. 08:27 PM - Re: Lift strut angle (Clif Dawson)
24. 08:45 PM - Re: Bellcrank question (Rcaprd@aol.com)
25. 08:54 PM - Re: Lift strut angle (rod wooller)
26. 09:16 PM - Re: Varnished Wings (Galen Hutcheson)
27. 09:29 PM - Re: Bellcrank question (bike.mike)
28. 10:01 PM - Re: Bellcrank question (Clif Dawson)
Message 1
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Subject: | Lift strut angle |
--> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com>
Group,
I am starting to make the fuselage brackets for the landing gear (split
axle) and have a question regarding the tab that the wing lift strut
attaches to. The plans say bend the tab up 20 degrees.
I drew a diagram on some graph paper with a vertical measurement of 46"
(fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from
the cabane out to the spar bracket).
This gives me an angle of 30 degrees.
Am I measuring something wrong, and is the angle of the tab critical ? Only
want to make these things once :-)
Congratulations Bert,
Rod Wooller
Chidlow
Australia ( Three and a half years in )
Message 2
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Subject: | Lift strut angle |
--> Pietenpol-List message posted by: "Peter W Johnson" <vk3eka@bigpond.net.au>
Rod,
My Jim Wills plans show 28 degrees.
Cheers Peter.
Wonthaggi, Australia
http://www.cpc-world.com
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of rod wooller
Subject: Pietenpol-List: Lift strut angle
--> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com>
Group,
I am starting to make the fuselage brackets for the landing gear (split
axle) and have a question regarding the tab that the wing lift strut
attaches to. The plans say bend the tab up 20 degrees.
I drew a diagram on some graph paper with a vertical measurement of 46"
(fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from
the cabane out to the spar bracket).
This gives me an angle of 30 degrees.
Am I measuring something wrong, and is the angle of the tab critical ? Only
want to make these things once :-)
Congratulations Bert,
Rod Wooller
Chidlow
Australia ( Three and a half years in )
Message 3
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Subject: | Re: Lift strut angle |
--> Pietenpol-List message posted by: "walt evans" <wbeevans@verizon.net>
I made mine right to the plans and after final assy , my tabs weren't right
on the centerline of the strut. The plans also say that you need some play
in the holes to avoid side stresses on the bolt and "chrystalizing" <sp>
walt evans
NX140DL
----- Original Message -----
From: "rod wooller" <rodwooller@hotmail.com>
Subject: Pietenpol-List: Lift strut angle
> --> Pietenpol-List message posted by: "rod wooller"
<rodwooller@hotmail.com>
>
> Group,
>
> I am starting to make the fuselage brackets for the landing gear (split
> axle) and have a question regarding the tab that the wing lift strut
> attaches to. The plans say bend the tab up 20 degrees.
> I drew a diagram on some graph paper with a vertical measurement of 46"
> (fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80" (from
> the cabane out to the spar bracket).
> This gives me an angle of 30 degrees.
> Am I measuring something wrong, and is the angle of the tab critical ?
Only
> want to make these things once :-)
>
> Congratulations Bert,
>
> Rod Wooller
> Chidlow
> Australia ( Three and a half years in )
>
>
Message 4
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Can someone please give me the torque values for 7/16 fine and 3/8 fine aircraft
grade bolts?
thanks!!
Douwe
douweblumberg@earthlink.net
Message 5
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Subject: | Re: Raising the wing |
--> Pietenpol-List message posted by: Larry Nelson <lnelson208@yahoo.com>
I was going to post this on the "lift strut angle"
thread but decided not to hijack that thread.
I am trying to determine all of the ramifications of
raising the wing on N444MH, Howard Henderson's plane
which I own.
It appears that when I raise the wing 2" (is that not
a common "raise" for the wing?) I will need to redo
the fuel line, the cabane struts, and the cabane strut
wires, unless I go with the forward hard braces. I
will need to lengthen the aileron cables, or
effectively lengthen them with some sort of "link" at
the controls.
Now, when you raise the wing, does not the angle of
the lift struts change? Or does the raising of the
wing also require different lift struts?
Anyone on the list raise the wing of a completed
plane? Should I just live with crunching myself up to
enter the cockpit? Should I have surgery and change MY
geometry? (Too many questions....)
=====
Larry Nelson
Springfield, MO
Beechcraft Bonanza V-35B N2980A
Pietenpol Air Camper N444MH
1963 GMC 4106-1618
SV/ Spirit of America
ARS WB0JOT
Message 6
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Subject: | Lift strut angle |
--> Pietenpol-List message posted by: "Phillips, Jack" <jphillip@alarismed.com>
Rod,
The angle is fairly critical and should be in line with the centerline
of the strut, otherwise it imparts bending moments that can jack up the
stresses unnecessarily.
I didn't build that type of gear on mine (I used the straight axle
undercarriage with wire wheels), but I wouldn't be surprised for this to
be a mistake in the plans - there are plenty of mistakes. Go with your
own geometry - make measuremetns of the parts you have and align the
angle with your struts. Any variations you have made in fuselage width,
cabane strut length, or position of the lift strut attach points on the
wing will affect the angle.
For what it's worth, on mine, with cabanes 2-1/2" longer than plans, my
angle was right at 30 degrees.
Jack Phillips, PE
Sr. Manager, Disposables Product Development
Clinical Technologies and Services
Cardinal Health
Creedmoor, NC
(919) 528-5212
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of rod
wooller
Subject: Pietenpol-List: Lift strut angle
--> Pietenpol-List message posted by: "rod wooller"
<rodwooller@hotmail.com>
Group,
I am starting to make the fuselage brackets for the landing gear (split
axle) and have a question regarding the tab that the wing lift strut
attaches to. The plans say bend the tab up 20 degrees.
I drew a diagram on some graph paper with a vertical measurement of 46"
(fuselage 24" plus cabanes 22") and a horizontal measuremaent of 80"
(from
the cabane out to the spar bracket).
This gives me an angle of 30 degrees.
Am I measuring something wrong, and is the angle of the tab critical ?
Only
want to make these things once :-)
Congratulations Bert,
Rod Wooller
Chidlow
Australia ( Three and a half years in )
Message 7
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Subject: | Raising the wing |
--> Pietenpol-List message posted by: "Phillips, Jack" <jphillip@alarismed.com>
If you raise the wing, you will need to make new lift struts as well as
new cabanes. All the other things you mentioned must be changed as well
(fuel lines, aileron cables, roll wires). The roll wire fittings should
also be changed if the angle of the wires changes significantly, but I
doubt you will be changing it that much. The diagonal struts that run
from the forward cabanes down to the engine mount must be changed as
well (unless N444MH uses the bracing wires on the right side of the
cockpit for fore and aft bracing.
Jack Phillips
-----Original Message-----
--> Pietenpol-List message posted by: Larry Nelson
<lnelson208@yahoo.com>
I was going to post this on the "lift strut angle"
thread but decided not to hijack that thread.
I am trying to determine all of the ramifications of
raising the wing on N444MH, Howard Henderson's plane
which I own.
It appears that when I raise the wing 2" (is that not
a common "raise" for the wing?) I will need to redo
the fuel line, the cabane struts, and the cabane strut
wires, unless I go with the forward hard braces. I
will need to lengthen the aileron cables, or
effectively lengthen them with some sort of "link" at
the controls.
Now, when you raise the wing, does not the angle of
the lift struts change? Or does the raising of the
wing also require different lift struts?
Anyone on the list raise the wing of a completed
plane? Should I just live with crunching myself up to
enter the cockpit? Should I have surgery and change MY
geometry? (Too many questions....)
=====
Larry Nelson
Message 8
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Subject: | Bellcrank question |
--> Pietenpol-List message posted by: Rick Holland <at7000ft@gmail.com>
Yes, I know I need to just shutup and build it to the plans but I
would just like everyone's opinion on this one. On the plans the
bellcrank is made with two holes on the top and two holes on the
bottom with four shackles (at $8.00 each) directly connecting all
front and back elevator control cables. In the archives people
complain about their elevator cables going slack. In addition to
saying this is normal people claim that the solution is to have the
cables connect to the bellcrank in the middle, even with the center of
rotation. But no one offers a method of accomplishing this.
Well here is one way to do it and simplify the design as well. Just
dill one hole at the top and bottom in the center. Most Piet
belllcranks I have seen do not follow the plans and use short metal
straps with clevis pins to connect the bellbrank holes to the control
cables with maybe a shackle or two in between. Just use four short
metal straps at each end connected by a single clevis pin, two
pointing forward and two pointing back. Cheap, easy, simplier, don't
see how it would offer less strength.
Sorry for the long post and tell me where I am thinking wrong here.
--
Rick Holland
Message 9
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Subject: | Re: Raising the wing |
Larry
I can understand your problem I think! I am 6'4" tall and
could NOT get into the cockpit without the wing in place.
Looking at the access issue I simply left off the tail end
of the centre section behind the rear spar. I know some people
have put this part on a hinge so they can swing it up out
of the way. If you have the 3 piece wing this might be a simpler
solution. I also built mine as a single place as I had to move
the instrument panel ahead 4 inches. If I had been starting
from scratch I would have stretched to front part of the fuselage
about 6 inches and left it as a 2 place but I had bought a partly
built project from a estate so removing the front cockpit was
way easier, and with only 65 hp this way I don't have to consider
the extra weight of a passenger.
Anyway "BLACK PIET" will hopefully fly in a month. It is mostly
Black with white trim and wing top accents. 65 hp Continental
Narco radio, C transponder, registered as a ultralight so controlled
airspace is easier
Les in Calgary
At 07:21 AM 26/01/2005 -0800, you wrote:
>--> Pietenpol-List message posted by: Larry Nelson <lnelson208@yahoo.com>
>
>
>I was going to post this on the "lift strut angle"
>thread but decided not to hijack that thread.
>
>I am trying to determine all of the ramifications of
>raising the wing on N444MH, Howard Henderson's plane
>which I own.
>
>It appears that when I raise the wing 2" (is that not
>a common "raise" for the wing?) I will need to redo
>the fuel line, the cabane struts, and the cabane strut
>wires, unless I go with the forward hard braces. I
>will need to lengthen the aileron cables, or
>effectively lengthen them with some sort of "link" at
>the controls.
>
>Now, when you raise the wing, does not the angle of
>the lift struts change? Or does the raising of the
>wing also require different lift struts?
>
>Anyone on the list raise the wing of a completed
>plane? Should I just live with crunching myself up to
>enter the cockpit? Should I have surgery and change MY
>geometry? (Too many questions....)
>
>=====
>Larry Nelson
>Springfield, MO
>Beechcraft Bonanza V-35B N2980A
>Pietenpol Air Camper N444MH
>1963 GMC 4106-1618
>SV/ Spirit of America
>ARS WB0JOT
>
>__________________________________________________
>
>
Message 10
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Subject: | Accurate Wood List |
I've just received my plans and need to order the wood for a long bodied three
piece wing aircamper. I'll be ordering from Aircraft Spruce and shipping to Europe
so I want to avoid any mistakes. I've seen a wood list mentioned in the
archives (Sep 04) and would appreciate it if someone would e-mail me a copy.
Regards
Derek Doyle
Message 11
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--> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com>
Hello Gang,
I'm sure this has come up in the past, though I can't
get a hit on the search engine. Has anyone had
experience with varnished wings? I just figured up
the paint cost for the plane I am building and nearly
had heart failure! A friend of mine knew of a Piet
that had varnished wings and that it was flying and
holding up well. Does anyone know of this plane and
how I can contact the builder? I think the varnishing
would be much cheaper than the painting process. The
Helsman Spar Urethane I am using on the wood has some
UV protection, but is it enough? Has anyone added
alumn. powder to the varnish to improve the UV
protection? I know, questions, questions...
Thanks and best wishes to all.
Doc
__________________________________
http://info.mail.yahoo.com/mail_250
Message 12
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Subject: | Re: N327BC First Flight Today |
--> Pietenpol-List message posted by: "Hodgson, Mark O" <mhodgson@bu.edu>
Ok it's just piling on at this point, but here's my congrats also!
There can't be too much reinforcement when it comes to a first flight.
Mark Hodgson
Message 13
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ETAsAhQIOZzt8HtZ00kvZzWaLLbd6FRH+AIUT5tQtiqUBFhzMQEbJo+4ikKAyE0=
--> Pietenpol-List message posted by: lshutks@webtv.net (Leon Stefan)
Hello: We have to pick our summer vacation in the next week or so (where
I work) The last B.Head newsletter didn't have any dates for the fly
in. Is it the weekend before Oshkosh as usual? Does any ine know?
Thanks.
Message 14
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b=d3s0pFfr8lz6vZZ6Q3tbAFeUDkTxhV8ZxB2MnFwzjXMVxIIocmJHDjSX0n5nWfG+;
--> Pietenpol-List message posted by: "Doyle Combs" <doylecombskeith@earthlink.net>
Galen, you might want to check out latex paint. I clearcoated the latex and
it looks pretty good and not soft as it was before.
> [Original Message]
> From: Galen Hutcheson <wacopitts@yahoo.com>
> To: <pietenpol-list@matronics.com>
> Date: 1/26/2005 11:50:44 AM
> Subject: Pietenpol-List: Varnished Wings
>
> --> Pietenpol-List message posted by: Galen Hutcheson
<wacopitts@yahoo.com>
>
> Hello Gang,
>
> I'm sure this has come up in the past, though I can't
> get a hit on the search engine. Has anyone had
> experience with varnished wings? I just figured up
> the paint cost for the plane I am building and nearly
> had heart failure! A friend of mine knew of a Piet
> that had varnished wings and that it was flying and
> holding up well. Does anyone know of this plane and
> how I can contact the builder? I think the varnishing
> would be much cheaper than the painting process. The
> Helsman Spar Urethane I am using on the wood has some
> UV protection, but is it enough? Has anyone added
> alumn. powder to the varnish to improve the UV
> protection? I know, questions, questions...
>
> Thanks and best wishes to all.
>
> Doc
>
>
>
> __________________________________
> http://info.mail.yahoo.com/mail_250
>
>
>
>
>
>
>
Message 15
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--> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com>
Hi Doyle,
I've been following the discussions on latex paint and
am impressed. The varnishing interests me because the
finished product would have a very old appearing
finish. I thought it would go very well with the
plane's antique history. I am definately going to
look at the latex paint before I pay outlandish prices
for A/C grade paint. It seems like anything aviation
has to cost 3 times as much as non-aviation materials.
Thank goodness we have the experimental class to do
just that, EXPERIMENT!
Thanks.
Galen (aka Doc)
--- Doyle Combs <doylecombskeith@earthlink.net> wrote:
Galen, you might want to check out latex paint. I
> clearcoated the latex and
> it looks pretty good and not soft as it was before.
>
>
>
> >
> >
> >
> > __________________________________
> more.
> > http://info.mail.yahoo.com/mail_250
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
> Contributions
> any other
> Forums.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Pietenpol-List.htm
> http://www.matronics.com/archives
> http://www.matronics.com/photoshare
> http://www.matronics.com/emaillists
>
>
>
>
>
>
__________________________________
http://info.mail.yahoo.com/mail_250
Message 16
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Subject: | Re: N327BC First Flight Today |
--> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com>
Let me add my straw to the bundle and congrats on the
first flight. Even though you didn't make that first
flight yourself (and each pilot has to know his
limitations and to know when it is wise to let someone
else make the first flight) it has to be a rush to see
an airplane that you built with your own hands fly so
successfully. It makes us all (those who still labor
over dreams of someday flying our creations) envious
and yet proud that you have accomplished what you set
out to do 9 years ago. Best wishes and always "fly
safe."
Doc
--- "Hodgson, Mark O" <mhodgson@bu.edu> wrote:
> --> Pietenpol-List message posted by: "Hodgson, Mark
> O" <mhodgson@bu.edu>
>
> Ok it's just piling on at this point, but here's my
> congrats also!
> There can't be too much reinforcement when it comes
> to a first flight.
>
> Mark Hodgson
>
>
>
>
>
>
>
>
> Contributions
> any other
> Forums.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Pietenpol-List.htm
> http://www.matronics.com/archives
> http://www.matronics.com/photoshare
> http://www.matronics.com/emaillists
>
>
>
>
>
>
Message 17
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Subject: | Re: Varnished Wings |
--> Pietenpol-List message posted by: "Jim Malley" <jgmalley@comcast.net>
About 20 years ago, I made up some samples of fabric coverings to test for
durability, ease of fabrication, cost of the project, etc. One of the
samples was varnished with a brand that claimed some built-in UV protection.
The samples were left in the backyard for a couple of years; the sun, the
rain and a few of the neighbors' pets had a go at them. All held up well.
The varnished sample was relatively inexpensive, but 2 coats of it weighed
more than 9 coats of dope; also, I couldn't get the tapes to look right (and
I tried both gluing them on and varnishing them on). Partial to the
aesthetics of the "varnished look," I finally went with clear dope, mixing
in a little color on the 8th coat. There's no UV protection, but the
combination of a hangar, the Northeast's numerous sunless days, and everyday
nightfall have combined to keep the fabric in pretty good shape at the 15
year mark.
Jim Malley
----- Original Message -----
From: "Galen Hutcheson" <wacopitts@yahoo.com>
Subject: Pietenpol-List: Varnished Wings
> --> Pietenpol-List message posted by: Galen Hutcheson
<wacopitts@yahoo.com>
>
> Hello Gang,
>
> I'm sure this has come up in the past, though I can't
> get a hit on the search engine. Has anyone had
> experience with varnished wings? I just figured up
> the paint cost for the plane I am building and nearly
> had heart failure! A friend of mine knew of a Piet
> that had varnished wings and that it was flying and
> holding up well. Does anyone know of this plane and
> how I can contact the builder? I think the varnishing
> would be much cheaper than the painting process. The
> Helsman Spar Urethane I am using on the wood has some
> UV protection, but is it enough? Has anyone added
> alumn. powder to the varnish to improve the UV
> protection? I know, questions, questions...
>
> Thanks and best wishes to all.
>
> Doc
>
>
> __________________________________
> http://info.mail.yahoo.com/mail_250
>
>
Message 18
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s=test1; d=earthlink.net;
b=BccO2fT7fDhsjLsvYcuUT+snjbIXMC4epNWiXI/FTXWQGNnGk0ozhxUp5vGggY1O;
--> Pietenpol-List message posted by: "Cinda Gadd" <csfog@earthlink.net>
Leon, The EAA chapter website says July 22 and 23 2005.
Skip
Is it the weekend before Oshkosh as usual? Does any ine know?
> Thanks.
>
>
>
>
>
Message 19
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Subject: | Helicopter perfection (off-topic) |
--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
I don't fly RC models and I don't fly choppers, but I just watched a video
clip of an RC chopper doing things I didn't think possible. I think DJ
would appreciate this one since he's an RC guy. It's several minutes of
video so it takes a bit to download (I have cable modem and it took about a
minute):
http://www.compfused.com/directlink/557/
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
Message 20
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Subject: | Re: Helicopter perfection (off-topic) |
--> Pietenpol-List message posted by: "DJ Vegh" <djv@imagedv.com>
ahhhh yeas... Alan Szabo. he flies a Raptor 90. I have a Raptor 50. I've
flown with him at that field in Vegas a couple years ago. We put night
blades (LED's in the tips) on and flew our helicopters at night... loops
rools, inverted hovering... even flew through the sprinklers that night.
He's a great pilot.
DJ
----- Original Message -----
From: "Oscar Zuniga" <taildrags@hotmail.com>
Subject: Pietenpol-List: Helicopter perfection (off-topic)
> --> Pietenpol-List message posted by: "Oscar Zuniga"
> <taildrags@hotmail.com>
>
> I don't fly RC models and I don't fly choppers, but I just watched a video
> clip of an RC chopper doing things I didn't think possible. I think DJ
> would appreciate this one since he's an RC guy. It's several minutes of
> video so it takes a bit to download (I have cable modem and it took about
> a minute):
>
> http://www.compfused.com/directlink/557/
>
> Oscar Zuniga
> San Antonio, TX
> mailto: taildrags@hotmail.com
> website at http://www.flysquirrel.net
>
>
>
Message 21
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Subject: | Re: Helicopter perfection (off-topic) |
DNA: do not archive
Its-Bogus: do not forward to list
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resend the email using plaintext formatting.
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Message 22
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Subject: | Re: Lift strut angle |
--> Pietenpol-List message posted by: Rcaprd@aol.com
Rod,
The angle of the tab is critical, and should be parallel to the lift
struts, and have nice clean round holes in them, to attach the lift struts. As
for the holes, I much prefer pilot holes, then match drill the finished holes
when the lift struts are fitted. I suggest you triple check all your
measurements (especially if you change the cabane strut length, or the fuselage
width),
and use the angle you come up with. The angle is much closer to 30 than it
is to 20. While we're on this subject, the 90 angle fittings on the inside
calls out for 20 ga. (.035"). Last summer, I changed all four of those angle
fittings inside, because they were .035" 1020 steel, and they dimpled into the
wood. I replaced them with .063" 4130 steel. On the front cross strap, I
also added a 3/16" (#10) bolt up through the 2" cross piece strap, through the
White Ash cross strut, because the 2" strap bowed away from the bottom of the
fuselage. It was probably caused by the negative G's imposed on the lift
struts, as a result of a hard landing. This is somewhat of a common anomaly of
the design. I only installed one bolt up through the centerline, but now the 2"
strap is showing a gap on the left side. I will add two more 3/16" (#10)
bolts for a total of three bolts up through the Ash Cross Strut. I'm talking
about the front strap.
For the rear cross strap, there is already plenty of bolts going up
through the strap into the ash cross piece, with the rudder bar brace, and it is
where I mounted the master cylinders pivot points, a couple of inches to each
side of the centerline.
While flying, I use the 30 angle of the lift struts to attain a 30 bank
angle, by keeping them parallel to the ground.
Chuck G.
NX770CG
Wichita KS
wishing you Texas Boys could shove some of that 70 weather up this way !!
Message 23
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Subject: | Re: Lift strut angle |
--> Pietenpol-List message posted by: Clif Dawson <CDAWSON5854@shaw.ca>
Second that. The angle shown on your plans will be for
a specific case which assumes following the plans to the
letter. As Jack says, as soon as you make any change,
longer cabanes, positive dihedral, deeper fuselage, wider
fuselage, all of the above, that angle will change. There is
a Piet for sale here, built some years ago by a pair of airline
mechanics, with a 6" wider fuselage among other things. It
has flown for some years with an unmodified corvair except
for the removal of the cooling fan.
Jim Wills plans?
Clif
Landing gear sitting on fuselage, in jig, waiting for bolts
from Wicks. I'm having trouble waiting to turn it over
so I can sit in it and make engine noises again!
> Rod,
>
> The angle is fairly critical and should be in line with the centerline
> of the strut, otherwise it imparts bending moments that can jack up the
> stresses unnecessarily.
> I didn't build that type of gear on mine (I used the straight axle
> undercarriage with wire wheels), but I wouldn't be surprised for this to
> be a mistake in the plans - there are plenty of mistakes. Go with your
> own geometry - make measuremetns of the parts you have and align the
> angle with your struts. Any variations you have made in fuselage width,
> cabane strut length, or position of the lift strut attach points on the
> wing will affect the angle.
>
> For what it's worth, on mine, with cabanes 2-1/2" longer than plans, my
> angle was right at 30 degrees.
>
> Jack Phillips, PE
Message 24
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Subject: | Re: Bellcrank question |
--> Pietenpol-List message posted by: Rcaprd@aol.com
Rick,
I believe the purpose of two holes on top, and two holes on the lower end of
the bellcrank, is to offer redundency, in the event of a pin failure.
Chuck G.
Message 25
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Subject: | Lift strut angle |
--> Pietenpol-List message posted by: "rod wooller" <rodwooller@hotmail.com>
Thanks guys for all the replies and helpful hints. I'll re-measure
everything accurately and make the angle to suit.
Thanks again,
Rod
>From: "rod wooller" <rodwooller@hotmail.com>
>Reply-To: pietenpol-list@matronics.com
>To: pietenpol-list@matronics.com
>Subject: Pietenpol-List: Lift strut angle
>Date: Wed, 26 Jan 2005 16:44:12 +0800
>
>--> Pietenpol-List message posted by: "rod wooller"
><rodwooller@hotmail.com>
>
>Group,
>
>I am starting to make the fuselage brackets for the landing
>gear.............
>
Rod Wooller
>Chidlow
>Australia ( Three and a half years in )
>
>
Message 26
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s=s1024; d=yahoo.com;
b=VQAOP86T0TEsb8ciSU5uyked06+wZPxb11aPKMmsVW6f6Fka1lX36199u5fuzBHPmqAtLDrMgKQLIsgRXu2+OoXQFwtFkOcW1ADuFKKd3dNXLGmT2kfw2XYQABebLBhSa10WDM91+pJFLjBB3Bff8Om9M9XBvyx8+IE32sDCUss=
;
Subject: | Re: Varnished Wings |
--> Pietenpol-List message posted by: Galen Hutcheson <wacopitts@yahoo.com>
Thanks for the info Jim, I wonder how one good coat of
spar urethane varnish would work. It would cut down
on the weight. Perhaps with some alumn. powder mixed
in. I haven't priced the clear dope as yet, it may be
cheaper than the Poly Stitts stuff I priced.
Doc
-
> >
> >
> >
> > __________________________________
> more.
> > http://info.mail.yahoo.com/mail_250
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
> Contributions
> any other
> Forums.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Pietenpol-List.htm
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> http://www.matronics.com/emaillists
>
>
>
>
>
>
Message 27
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Subject: | Re: Bellcrank question |
--> Pietenpol-List message posted by: "bike.mike" <bike.mike@verizon.net>
I don't think any redundancy is gained by the use of four pins. If any one
of the four bellcrank pins breaks, elevator control is lost...you can't push
a cable.
Counter-intuitively, having only two pins would reduce the theoretical
probability of failure.
Mike Hardaway
----- Original Message -----
From: <Rcaprd@aol.com>
Subject: Re: Pietenpol-List: Bellcrank question
> --> Pietenpol-List message posted by: Rcaprd@aol.com
>
> Rick,
> I believe the purpose of two holes on top, and two holes on the lower end
of
> the bellcrank, is to offer redundancy, in the event of a pin failure.
>
> Chuck G.
>
>
Message 28
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Subject: | Re: Bellcrank question |
<003201c5042f$4f3710b0$6401a8c0@the48194bd3804>
--> Pietenpol-List message posted by: Clif Dawson <CDAWSON5854@shaw.ca>
If all else fails, use you arms :-)
Clif
Subject: Re: Pietenpol-List: Bellcrank question
> I don't think any redundancy is gained by the use of four pins. If any
one
> of the four bellcrank pins breaks, elevator control is lost...you can't
push
> a cable.
> Counter-intuitively, having only two pins would reduce the theoretical
> probability of failure.
>
> Mike Hardaway
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