Today's Message Index:
----------------------
1. 04:24 AM - Re: taxi test (Phillips, Jack)
2. 04:33 AM - Re: Aileron Hinge (Phillips, Jack)
3. 06:21 AM - Re: Aileron Hinge (hvandervoo@aol.com)
4. 06:35 AM - Re: taxi test (AMsafetyC@aol.com)
5. 06:43 AM - Re: Brodhead trip planning (Isablcorky@aol.com)
6. 07:11 AM - Aileron hinge (lshutks@webtv.net (Leon Stefan))
7. 07:11 AM - Re: taxi test (Rick Holland)
8. 07:16 AM - WW Black prop hub (Rick Holland)
9. 08:04 AM - aileron horn geometery (Richard Schreiber)
10. 08:36 AM - Re: Aileron hinge (Brian Kraut)
11. 10:02 AM - Re: landing gear (Gardiner Mason)
12. 02:08 PM - Re: aileron horn geometery (walt evans)
13. 02:39 PM - Re: aileron horn geometery (Richard Schreiber)
14. 05:01 PM - Re: Aileron hinge ()
15. 05:51 PM - landing gear (santiago morete)
16. 06:17 PM - aileron control horns (Oscar Zuniga)
17. 06:54 PM - Re: landing gear (Jim Markle)
Message 1
INDEX | Back to Main INDEX |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Good looking plane, Randy. I hope we can meet at MKL and fly up to
Brodhead together with Gene. Enjoy your test flights. There is
absolutley no greater feeling in the world than making the first flight
in a plane you built yourself. That grin you have in the last picture
is nothing compared to the one you will have after your first flight
Jack Phillips
NX899JP
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
RBush96589@aol.com
Sent: Wednesday, January 02, 2008 10:51 PM
Subject: Pietenpol-List: taxi test
Hello group,
Got the wings on NX294RB and did some taxi tests,every thing seems
fine.Just waiting on the FAA inspection.Here are a few photos.
Robert (Randy) Bush
top rated recipes and easy ways to stay in shape
<http://body.aol.com/fitness/winter-exercise?NCID=aoltop00030000000003>
for winter.
_________________________________________________
This message is for the designated recipient only and may contain privilege
d, proprietary
or otherwise private information. If you have received it in error, please
notify the sender
immediately and delete the original. Any other use of the email by you is p
rohibited.
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - N
orsk - Portuguese
Message 2
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Scott the simplest way is to order the hinge pin a couple of inches
long. Put a 90 degree bend in it about an inch from the end and then
form a loop on that stub. Then you can run a screw through the loop,
into the aileron spar to hold the hinge pin in place. That is
essentially what is done on the elevator trim tab on my RV-10 kit
(although on the RV-10, the bent hinge pin is just safety wired to the
elevator spar
This is one of the advantages of using multiple short sections of hinge
(about the only advantage, I would say). On my Pietenpol, I peened the
outer most hinge loop down on the hinges at the extreme inboard and
outboard positions so the hinge pins could not work out. The rest of
the hinge pins were then constrained by the inboard and outboard hinges.
Good luck,
Jack Phillips
NX899JP
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Scott
Schreiber
Sent: Wednesday, January 02, 2008 11:53 PM
Subject: Re: Pietenpol-List: Aileron Hinge
I bought one of each barn door hinge I could find. 3 inch and then 4 as
well and there were allot of problems. They are all chinese and the
metal is questionable. The 3 inch ones had the bend line at or crossing
holes that were pre drilled. I ordered up the piano hinge and all those
problems went away. I had the hinges on the wings and he ailerons
aligned in less than an afternoon. The only thing I can't seem to find
in Bengelis books or elsewhere is a method to secure the hinge wire. On
cessnas there is a small hole with a cotter pin (TINY) and I could take
it to the local machine shop and have them drill it I suppose, but I am
sure there is a better way.
-Scott
----- Original Message -----
From: Phillips, Jack <mailto:Jack.Phillips@cardinalhealth.com>
To: pietenpol-list@matronics.com
Sent: Wednesday, January 02, 2008 2:13 PM
Subject: RE: Pietenpol-List: Aileron Hinge
I doubt if three (are there 3 hinges per side, or 2?) barn door
hinges are lighter than one 6' length of aluminum piano hinge, and you
still need to seal the gaps. Two 6' lengths of AN257 piano hinges are
about $26, so the barn door hinges are probably not significantly
cheaper either. Simpler? There are an awful lot of Cessna's and Piper
Cherokees flying around with the simplest hinge they could find - the
piano hinge. I think the aileron hinge is definitely a case of where
BHP used what was handy, but would have used something better if it was
available.
What kind of hinge does the Tailwind use, Chuck? Not trying to
start a flame war - I just don't know what kind of hinge it uses and am
curious. The RV's use threaded spherical ball rod ends with bolts.
Jack Phillips
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
Rcaprd@aol.com
Sent: Wednesday, January 02, 2008 1:42 PM
To: pietenpol-list@matronics.com
Subject: Re: Pietenpol-List: Aileron Hinge
In a message dated 1/2/2008 10:06:08 AM Central Standard Time,
Jack.Phillips@cardinalhealth.com writes:
Just do it the easy way - one long hinge with one long
pin.
Jack Phillips
NX899JP
I think the easy way is to use the plans 'Barn Door' type
hinge...cheaper, lighter, simpler.
Chuck G.
NX770CG
top rated recipes and easy ways to stay in shape
<http://body.aol.com/fitness/winter-exercise?NCID=aoltop00030000000003>
for winter.
http://www.matronics.com/contribution
_________________________________________________
This message is for the designated recipient only and may
contain privileged, proprietary
or otherwise private information. If you have received it in
error, please notify the sender
immediately and delete the original. Any other use of the email
by you is prohibited.
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese -
Nederlands - Norsk - Portuguese
href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matr
onics.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
_________________________________________________
This message is for the designated recipient only and may contain privilege
d, proprietary
or otherwise private information. If you have received it in error, please
notify the sender
immediately and delete the original. Any other use of the email by you is p
rohibited.
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - N
orsk - Portuguese
Message 3
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Aileron Hinge |
I used the 6 feet piano hinge and did not secure the hinge pin.
First it takes a lot of force to move the pin out.
Which probably indicates a not so perfect alignment but that is what happens
when you start bolting it to the wing.
The force needed to move the aileron around the hinge line is al most nil.
Second it takes a lot of time to work itself out (if it=C2-does) and would
be=C2-very visible during pre-flight
Plenty of time to land if it happens in flight
It has not moved in the last two years for even a fraction of an inch.
Hans
NX 15KV
-----Original Message-----
From: Phillips, Jack <Jack.Phillips@cardinalhealth.com>
Sent: Thu, 3 Jan 2008 6:32 am
Subject: RE: Pietenpol-List: Aileron Hinge
Scott the simplest way is to order the hinge pin a couple of inches long.
=C2- Put a 90 degree bend in it about an inch from the end and then form a
loop on that stub.=C2- Then you can run a screw through the loop, into th
e aileron spar to hold the hinge pin in place.=C2- That is essentially wha
t is done on the elevator trim tab on my RV-10 kit (although on the RV-10, t
he bent hinge pin is just safety wired to the elevator spar
=C2-
This is one of the advantages of using multiple short sections of hinge (abo
ut the only advantage, I would say).=C2- On my Pietenpol, I peened the out
er most hinge loop down on the hinges at the extreme inboard and outboard po
sitions so the hinge pins could not work out.=C2- The rest of the hinge pi
ns were then constrained by the inboard and outboard hinges.
=C2-
Good luck,
=C2-
Jack Phillips
NX899JP
=C2-
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list
-server@matronics.com] On Behalf Of Scott Schreiber
Sent: Wednesday, January 02, 2008 11:53 PM
Subject: Re: Pietenpol-List: Aileron Hinge
=C2-
I bought one of each barn door hinge I could find. 3 inch and then 4 as well
and there were allot of problems. They are all chinese and the metal is que
stionable. The 3 inch ones had the bend line at or crossing holes that were
pre drilled. I ordered up the piano hinge and all those problems went away.
I had the=C2-hinges on the wings and he ailerons aligned in less than an a
fternoon. The only thing I can't seem to find in Bengelis books or elsewhere
is a method to secure the hinge wire. On cessnas there is a small hole with
a cotter pin (TINY) and I could take it to the local machine shop and have
them drill it I suppose, but I am sure there is a better way.
=C2-
=C2-=C2-=C2-=C2-=C2-=C2-=C2- -Scott
----- Original Message -----
From: Phillips, Jack
Sent: Wednesday, January 02, 2008 2:13 PM
Subject: RE: Pietenpol-List: Aileron Hinge
=C2-
I doubt if three (are there 3 hinges per side, or 2?) barn door hinges are l
ighter than one 6=99 length of aluminum piano hinge, and you still nee
d to seal the gaps.=C2- Two 6=99 lengths of AN257 piano hinges are a
bout $26, so the barn door hinges are probably not significantly cheaper eit
her.=C2- Simpler?=C2- There are an awful lot of Cessna=99s and Pip
er Cherokees flying around with the simplest hinge they could find
=93 the piano hinge.=C2- I think the aileron hinge is definitely a case of
where BHP used what was handy, but would have used something better if it w
as available.
=C2-
What kind of hinge does the Tailwind use, Chuck?=C2- Not trying to start a
flame war =93 I just don=99t know what kind of hinge it uses an
d am curious.=C2- The RV=99s use threaded spherical ball rod ends wi
th bolts.
=C2-
Jack Phillips
=C2-
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list
-server@matronics.com] On Behalf Of Rcaprd@aol.com
Sent: Wednesday, January 02, 2008 1:42 PM
Subject: Re: Pietenpol-List: Aileron Hinge
=C2-
In a message dated 1/2/2008 10:06:08 AM Central Standard Time, Jack.Phillips
@cardinalhealth.com writes:
Just do it the easy way =93 one long hinge with one long pin.
=C2-
Jack Phillips
NX899JP
I think the easy way is to use the plans 'Barn Door' type hinge...cheaper, l
ighter, simpler.
=C2-
Chuck G.
NX770CG
=C2-
top rated recipes and easy ways to stay in shape for winter.
=C2-
=C2-
http://www.matronics.com/contribution
=C2-
_________________________________________________
=C2-
, proprietary
or otherwise private information. If you have received it in error, please n
otify the sender
immediately and delete the original. Any other use of the email by you is pr
ohibited.
=C2-
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - No
rsk - Portuguese
=C2-
=C2-
href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matron
ics.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
=C2-
_________________________________________________
=C2-
, proprietary
or otherwise private information. If you have received it in error, please n
otify the sender
immediately and delete the original. Any other use of the email by you is pr
ohibited.
=C2-
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - No
rsk - Portuguese
=C2-
=C2-
href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matron
ics.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
=C2-
=C2-
http://www.matronics.com/contribution
=C2-
_________________________________________________ This message is for the
designated recipient only and may contain privileged, proprietary or otherwi
se private information. If you have received it in error, please notify the
sender immediately and delete the original. Any other use of the email by yo
u is prohibited. Dansk - Deutsch - Espanol - Francais - Italiano - Japanese
- Nederlands - Norsk - Portuguese
==================
http://www.matronics.com/contribution
=C2-
_________________________________________________ This message is for the
designated recipient only and may contain privileged, proprietary or otherwi
se private information. If you have received it in error, please notify the
sender immediately and delete the original. Any other use of the email by yo
u is prohibited. Dansk - Deutsch - Espanol - Francais - Italiano - Japanese
- Nederlands - Norsk - Portuguese
==================
________________________________________________________________________
aol.com
Message 4
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Randy,
Great looking bird, hope all goes well with the taxi, FAA guy and test
flights.
Nice job!
John
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
Message 5
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Brodhead trip planning |
Don't say that no one wants to visit Fargo. David and I are planning an
anniversary trip to watch the super bowl. Hope we are lucky enough to have a bit
of snow so we can throw snowballs during the commercials and the halftime. We
are NOT bringing an ice chest for the beer.
Corky with his year long fridgid digit.
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
Message 6
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Scott: My brother is a machinist and he laughed when I asked him to
drill a tiny hole for the microscopic cotter key-not enough bi-focals in
the world to make him see what he is doing clearly. I asked for advise
from the list on obtaining a longer (longer than the 6" hinge) hinge
wire so I can bend it to the shape shown on a Cessna hinge in the AS&S
catalog. The end is a loop that will be secured under a screw. I don't
want to shorten the hinge to reveal enough wire for what I want to do.
Someone suggested piano wire. It comes in .090 d. which I believe is
what the hinge wire is. My only worry is that since it more than likely
comes coiled up, it may be hard to push threw the hinge. I Goggled,
"piano hinge" and found some manufacturers who my be able to supply
straight wires longer than the 6' (AS&S sells bare wires that are only
6") hinge. I haven't called any of them yet. If you talk to them, let us
know what they have. Leon S.
Message 7
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Message 8
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | WW Black prop hub |
Guys
If anyone is interested I have a new WW Black prop hub, puck, and alternator
pulley that I will sell for $400 plus shipping (cost $567).
Rick
at7000ft@gmail.com
--
Rick Holland
ObjectAge Ltd.
Castle Rock, Colorado
Message 9
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | aileron horn geometery |
Guys I have another perplexing problem, at least for me, on the ailerons. When
I laid out my aileron horns according to the '34 Hoopman drawn plans, they don't
seem to exactly match up to the side view of the horn and the aileron together,
as shown on the lower left side of the plans. The issue is the side view
of the aileron and horn shows the upper and lower cable attach points being in
a straight line through the hinge point. When I laid out the horn and aileron
in autocad with the top cable hole of the horn on the hinge centerline, it appears
that the bottom cable hole is 1/2 inches forward of the centerline. Also
the two arms of the aileron horn are not equal in length, again measured from
the hinge. The lower arm is 1-1/2" longer.
My question.... is this right? Do the two cable attach points, on the aileron horn
have to be on the same center line as the hinge? Do the aileron arms need
to be of equal length. I can certainly redraw the horn to make things line up,
but is it necessary?
I'm pretty sure my aileron horn layout is accurate, since when I print it to the
same scale as the drawing, the two match up pretty close.
Rick Schreiber
in frigid Valparaiso, Indiana
Message 10
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
I just use a 1/16" drill bit to drill the hinge and use safety wire. You
don't need to drill through the hinge pin, just keep the pin a little short.
That is a fairly common way of securing the pins.
Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com]On Behalf Of Leon
Stefan
Sent: Thursday, January 03, 2008 10:11 AM
Subject: Pietenpol-List: Aileron hinge
Scott: My brother is a machinist and he laughed when I asked him to
drill a tiny hole for the microscopic cotter key-not enough bi-focals in
the world to make him see what he is doing clearly. I asked for advise
from the list on obtaining a longer (longer than the 6" hinge) hinge
wire so I can bend it to the shape shown on a Cessna hinge in the AS&S
catalog. The end is a loop that will be secured under a screw. I don't
want to shorten the hinge to reveal enough wire for what I want to do.
Someone suggested piano wire. It comes in .090 d. which I believe is
what the hinge wire is. My only worry is that since it more than likely
comes coiled up, it may be hard to push threw the hinge. I Goggled,
"piano hinge" and found some manufacturers who my be able to supply
straight wires longer than the 6' (AS&S sells bare wires that are only
6") hinge. I haven't called any of them yet. If you talk to them, let us
know what they have. Leon S.
Message 11
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: landing gear |
Santiago, thank you for sending the landing gear picture. Do you have
any idea where the Piet is located,or who the owner is? I would like to
get more info on material and attach points. Thanks, Gardiner Mason
----- Original Message -----
From: santiago morete
To: pietenpol-list@matronics.com
Sent: Wednesday, January 02, 2008 12:13 PM
Subject: Pietenpol-List: landing gear
I found this
-------------------------------------------------------------------------
-----
Yahoo! Encuentros
Ahora encontrar pareja es mucho m=E1s f=E1cil, prob=E1 el nuevo Yahoo!
Encuentros.
Visit=E1 http://yahoo.cupidovirtual.com/servlet/NewRegistration
-------------------------------------------------------------------------
-----
Message 12
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: aileron horn geometery |
Rick,
Didn't go over the spacifics of the print that you refer to, but keep in
mind that the control system on the Piet work differentially<sp>
Which means that when one aileron goes down 5 deg's, the other goes
up , say 8 deg's. This is to try to eliminate adverse yaw. (or is it the
opposite, can never remember).
the crazy bend on all the control horns are for this.
They put more thought into the old designs than we might think.
the more one horn is at right angle to the pivot point, the more
movement of the cable per degree of turn of the torque tube.
Up to a point of,,,assume the horns on a torque tube were like hands on
a clock, one at 9:00 and one at 12:00. Whan you moved the torque tube
to the left the 9:00 cable would pull quite a bit,,while the 12:00 cable
wouldn't move at all. that shows the extreme, but shows.
So the combination of torque tube horns at 2:30 and 9:30, and the
aileron horns, top one more vertical, and the lower one raked down and
forward, they accomplish the differentiallity<sp>. But it has
drawbacks,,of uneven cable tension throughout control movement, to a
point.
Sorry for the long winded thing.
walt evans
NX140DL
"No one ever learned anything by talking"
Ben Franklin
----- Original Message -----
From: Richard Schreiber
To: pietenpol-list
Sent: Thursday, January 03, 2008 10:56 AM
Subject: Pietenpol-List: aileron horn geometery
Guys I have another perplexing problem, at least for me, on the
ailerons. When I laid out my aileron horns according to the '34 Hoopman
drawn plans, they don't seem to exactly match up to the side view of the
horn and the aileron together, as shown on the lower left side of the
plans. The issue is the side view of the aileron and horn shows the
upper and lower cable attach points being in a straight line through the
hinge point. When I laid out the horn and aileron in autocad with the
top cable hole of the horn on the hinge centerline, it appears that the
bottom cable hole is 1/2 inches forward of the centerline. Also the two
arms of the aileron horn are not equal in length, again measured from
the hinge. The lower arm is 1-1/2" longer.
My question.... is this right? Do the two cable attach points, on the
aileron horn have to be on the same center line as the hinge? Do the
aileron arms need to be of equal length. I can certainly redraw the horn
to make things line up, but is it necessary?
I'm pretty sure my aileron horn layout is accurate, since when I print
it to the same scale as the drawing, the two match up pretty close.
Rick Schreiber
in frigid Valparaiso, Indiana
Message 13
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: aileron horn geometery |
Thanks for the reply Walt. I didn't even think about the different arm lengths
being intentional to control adverse yaw. I was looking at my Tri Pacer this morning
and the upper and lower aileron horns are also of unequal length, now I
know why. On the Piet I was concerned about uneven cable tension, but it appears
that is normal.
As an aside I did alter the geometry on my elevator horns/walking beam, to make
it more of a parallelogram rather than a trapezoid. This was probably similar
to what Ken Perkins has done. It did take care of the problem of the cables going
slack, but I still have some uneven cable tension.
Rick Schreiber
Valparaiso, In
----- Original Message -----
From: walt evans
Sent: 1/3/2008 4:12:28 PM
Subject: Re: Pietenpol-List: aileron horn geometery
Rick,
Didn't go over the spacifics of the print that you refer to, but keep in mind that
the control system on the Piet work differentially<sp>
Which means that when one aileron goes down 5 deg's, the other goes up , say
8 deg's. This is to try to eliminate adverse yaw. (or is it the opposite, can
never remember).
the crazy bend on all the control horns are for this.
They put more thought into the old designs than we might think.
the more one horn is at right angle to the pivot point, the more movement of the
cable per degree of turn of the torque tube.
Up to a point of,,,assume the horns on a torque tube were like hands on a clock,
one at 9:00 and one at 12:00. Whan you moved the torque tube to the left the
9:00 cable would pull quite a bit,,while the 12:00 cable wouldn't move at all.
that shows the extreme, but shows.
So the combination of torque tube horns at 2:30 and 9:30, and the aileron horns,
top one more vertical, and the lower one raked down and forward, they accomplish
the differentiallity<sp>. But it has drawbacks,,of uneven cable tension
throughout control movement, to a point.
Sorry for the long winded thing.
walt evans
NX140DL
"No one ever learned anything by talking"
Ben Franklin
----- Original Message -----
From: Richard Schreiber
Sent: Thursday, January 03, 2008 10:56 AM
Subject: Pietenpol-List: aileron horn geometery
Guys I have another perplexing problem, at least for me, on the ailerons. When
I laid out my aileron horns according to the '34 Hoopman drawn plans, they don't
seem to exactly match up to the side view of the horn and the aileron together,
as shown on the lower left side of the plans. The issue is the side view
of the aileron and horn shows the upper and lower cable attach points being in
a straight line through the hinge point. When I laid out the horn and aileron
in autocad with the top cable hole of the horn on the hinge centerline, it appears
that the bottom cable hole is 1/2 inches forward of the centerline. Also
the two arms of the aileron horn are not equal in length, again measured from
the hinge. The lower arm is 1-1/2" longer.
My question.... is this right? Do the two cable attach points, on the aileron horn
have to be on the same center line as the hinge? Do the aileron arms need
to be of equal length. I can certainly redraw the horn to make things line up,
but is it necessary?
I'm pretty sure my aileron horn layout is accurate, since when I print it to the
same scale as the drawing, the two match up pretty close.
Rick Schreiber
in frigid Valparaiso, Indiana
href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matronics.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 14
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Aileron hinge |
Hi Leon,
Try McMaster Carr
Lynn Knoll
Wichita
Piet/Vair
---- Leon Stefan <lshutks@webtv.net> wrote:
>
> Scott: My brother is a machinist and he laughed when I asked him to
> drill a tiny hole for the microscopic cotter key-not enough bi-focals in
> the world to make him see what he is doing clearly. I asked for advise
> from the list on obtaining a longer (longer than the 6" hinge) hinge
> wire so I can bend it to the shape shown on a Cessna hinge in the AS&S
> catalog. The end is a loop that will be secured under a screw. I don't
> want to shorten the hinge to reveal enough wire for what I want to do.
> Someone suggested piano wire. It comes in .090 d. which I believe is
> what the hinge wire is. My only worry is that since it more than likely
> comes coiled up, it may be hard to push threw the hinge. I Goggled,
> "piano hinge" and found some manufacturers who my be able to supply
> straight wires longer than the 6' (AS&S sells bare wires that are only
> 6") hinge. I haven't called any of them yet. If you talk to them, let us
> know what they have. Leon S.
>
>
>
>
>
--
Lynn
Message 15
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Sorry, I just find that picture on the web, here http://www.flickr.com/photos/hyper7/2037270549/
Saludos
Santiago
---------------------------------
Tarjeta de crdito Yahoo! de Banco Supervielle.Solicit tu nueva Tarjeta de crdito.
De tu PC directo a tu casa.
Visit www.tuprimeratarjeta.com.ar
Message 16
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | aileron control horns |
Rick noted-
>It did take care of the problem of the cables going slack,
>but I still have some uneven cable tension.
Here"s a little excerpt from Chet Peek's book, "The Pietenpol Story":
"May 20, 1929. As Bernard Pietenpol opened the throttle of his new Model A
powered monoplane, he felt a welcome surge of power." "After a few circui
ts of the field, he glided in to a smooth landing. As he taxied up to the
waiting Don Finke, he must have thought, 'At last I've got the plane I want
, a two place that flies good and has plenty of power.'"
That airframe, wing, control horns, and basic design came from Mr. Pietenpo
l's mind and hands over 80 years ago. I fly that airframe, wing, control h
orns, and basic design every weekend. I notice no ill effects from a littl
e uneven cable tension and I don't think you will, either. However, if you
want to work on eliminating it, carry on. I've done studies of the contro
l horn geometry and travel arcs in AutoCAD myself, but then I just turn off
the computer and go fly.Oscar ZunigaSan Antonio, TXmailto: taildrags@hotma
il.comwebsite at http://www.flysquirrel.net
Message 17
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: landing gear |
Looks like somewhere in South Africa...
----- Original Message -----
From: santiago morete
To: pietenpol-list@matronics.com
Sent: Thursday, January 03, 2008 7:50 PM
Subject: Pietenpol-List: landing gear
Sorry, I just find that picture on the web, here
http://www.flickr.com/photos/hyper7/2037270549/
Saludos
Santiago
-------------------------------------------------------------------------
-----
Tarjeta de cr=E9dito Yahoo! de Banco Supervielle. Solicit=E1 tu nueva
Tarjeta de cr=E9dito. De tu PC directo a tu casa.
Visit=E1 www.tuprimeratarjeta.com.ar
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|