Today's Message Index:
----------------------
1. 01:15 AM - Re: Control stick wood (Clif Dawson)
2. 03:35 AM - Re: Control stick wood (Jack Phillips)
3. 03:37 AM - Re: Fw: Gardiner and his Pietenpol, December 2009 (Jack Phillips)
4. 05:51 AM - stops and sticks (Douwe Blumberg)
5. 06:09 AM - Re: Fw: Gardiner and his Pietenpol, December 2009 (airlion)
6. 06:34 AM - Re: Re: Bolts and stress anal-isis (Michael Perez)
7. 06:38 AM - Re: Re: Bolts and stress anal-isis (Michael Perez)
8. 06:48 AM - Re: Re: Bolts and stress anal-isis (vahowdy@aol.com)
9. 06:50 AM - Re: stops and sticks (Gary Boothe)
10. 07:13 AM - Re: stops and sticks (H RULE)
11. 07:13 AM - Control stops/pulley guards (Ben Charvet)
12. 07:43 AM - Re: Control stops/pulley guards (Richard Schreiber)
13. 07:54 AM - Plans on E bay (AMsafetyC@aol.com)
14. 07:56 AM - Re: Control stops/pulley guards (Gary Boothe)
15. 08:06 AM - Re: Re: Bolts and stress anal-isis (David Paule)
16. 08:09 AM - Quick disconnect front control stick (helspersew@aol.com)
17. 08:25 AM - Re: Re: Bolts and stress anal-isis (Michael Perez)
18. 08:30 AM - Re: Quick disconnect front control stick (Gary Boothe)
19. 08:33 AM - Re: Re: Bolts and stress anal-isis (Michael Perez)
20. 08:45 AM - Re: Quick disconnect front control stick (helspersew@aol.com)
21. 08:53 AM - Re: Control stops/pulley guards (Jack Phillips)
22. 09:57 AM - Re: Quick disconnect front control stick (Jim Markle)
23. 11:13 AM - Re: Quick disconnect front control stick (Gary Boothe)
24. 12:04 PM - Re: Quick disconnect front control stick (Dan Yocum)
25. 12:39 PM - Re: Quick disconnect front control stick (Gary Boothe)
26. 12:43 PM - Re: Quick disconnect front control stick (John Hofmann)
27. 01:02 PM - Re: Quick disconnect front control stick (Gary Boothe)
28. 01:08 PM - Re: Quick disconnect front control stick (helspersew@aol.com)
29. 01:08 PM - Re: Quick disconnect front control stick (Jeff Boatright)
30. 01:45 PM - Re: Quick disconnect front control stick (Dortch, Steven D MAJ NG NG NGB)
31. 01:50 PM - Re: Quick disconnect front control stick (Gary Boothe)
32. 03:36 PM - Re: Control stops/pulley guards (Ben Charvet)
Message 1
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| Subject: | Re: Control stick wood |
Maybe just removable, like Mikey's.
Clif on the Wetcoast, Land of the Stolen Sun
----- Original Message ----- >
> Maybe a 100# breakaway stick in the front pit, and 200# stick for the
> pilot?
> Tim in central TX
Message 2
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| Subject: | Control stick wood |
Looks good, Gary!
Jack Phillips
NX899JP
Raleigh, NC
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Gary Boothe
Sent: Thursday, December 17, 2009 6:32 PM
Subject: RE: Pietenpol-List: Control stick wood
I see what you mean.and to top it off is a hand-carved Hickory grip. I moved
the stick forward a couple inches (I can do that because of the push rods)
and gave the pilot stick a little shape. The forward cockpit has a straight
stick - otherwise the same.
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Ryan Mueller
Sent: Thursday, December 17, 2009 12:10 PM
Subject: Re: Pietenpol-List: Control stick wood
That sounds like a dessert, not an airplane part! ;)
Ryan
do not archive
On Thu, Dec 17, 2009 at 2:01 PM, <gboothe5@comcast.net> wrote:
FWIW...mine are laminated Orange Paduka and Maple.
Gary Boothe
Sent from my Verizon Wireless BlackBerry
www.aeroelectric.com
www.homebuilthelp.com
http://www.matronics.com/contribution
Message 3
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| Subject: | Fw: Gardiner and his Pietenpol, December 2009 |
How about Sun 'n' Fun? Will you fly it down there, Gardiner? I'm hoping to
fly mine down there this year, wx permitting.
Jack Phillips
NX899JP
Raleigh, NC
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of airlion
Sent: Thursday, December 17, 2009 7:19 PM
Subject: Re: Pietenpol-List: Fw: Gardiner and his Pietenpol, December 2009
Mac, I hope to. Gardiner
_____
From: Mac Zirges <macz@casco.net>
Sent: Mon, January 1, 1990 4:37:46 AM
Subject: Re: Pietenpol-List: Fw: Gardiner and his Pietenpol, December 2009
Gardiner--
Your Piet looks great! Are you going to fly it to Brodhead this year?
--Mac in Oregon
----- Original Message -----
From: airlion <mailto:airlion@bellsouth.net>
Sent: Wednesday, December 16, 2009 3:22 PM
Subject: Pietenpol-List: Fw: Gardiner and his Pietenpol, December 2009
Hey listers, Has anyone done a stress analysis for the pietenpol? I have a
friend here in Lagrange that is an engineer and used to work for Lockheed.
He says that he can do a stress test on my Piet. I will let ya'll know the
results. Cheers, Gardiner
----- Forwarded Message ----
From: Susan Mason <susangmason@gmail.com>
Sent: Mon, December 7, 2009 7:06:12 PM
Subject: Gardiner and his Pietenpol, December 2009
_____
: 4/6/07 12:00 AM
Message 4
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| Subject: | stops and sticks |
Both control sticks on 799B are wood. They're laminated up from doug fir with
a center of 1/4" marine plywood, as are my cabanes and lift struts. Not flight
tested, but VERY strong.
Since my controls are all in, I've been trying to figure out a way to modify some
stops into the design. I got to thinking, why couldn't one use the front stick
actuator rod by simply putting a couple of hose clamps on it under the passenger
seat. One forward to hit the ply front support and one back to hit the
passenger back rest/bulkhead? seems simple and ultimately adjustable. One
could always glue or screw a patch of nylon sheet to take any abrasion that may
occur.
D
Message 5
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| Subject: | Re: Fw: Gardiner and his Pietenpol, December 2009 |
I am hoping to Jack. My inspection is in Jan., and then I have to fly off 4
0 hours. Cheers, Gardiner=0A=0A=0A=0A=0A________________________________=0A
From: Jack Phillips <pietflyr@bellsouth.net>=0ATo: pietenpol-list@matronics
..com=0ASent: Fri, December 18, 2009 6:34:55 AM=0ASubject: RE: Pietenpol-Lis
t: Fw: Gardiner and his Pietenpol, December 2009=0A=0A =0AHow about Sun
=98n=99 Fun? =0AWill you fly it down there, Gardiner? I=99m
hoping to fly mine down=0Athere this year, wx permitting.=0A =0AJack Phill
ips=0ANX899JP=0ARaleigh, NC=0A =0A=0A________________________________=0A
=0AFrom:owner-pietenpol-list-server@matronics.com [mailto: owner-pietenpol-
list-server@matronics.com ] On Behalf Of airlion=0ASent: Thursday, December
17, 2009=0A7:19 PM=0ATo: pietenpol-list@matronics.com=0ASubject: Re: Piete
npol-List: Fw:=0AGardiner and his Pietenpol, December 2009=0A =0AMac, I hop
e to.=0AGardiner=0A =0A=0A________________________________=0A =0AFrom:Mac
=0AZirges <macz@casco.net>=0ATo: pietenpol-list@matronics.com=0ASent: Mon,
January 1, 1990 4:37:46=0AAM=0ASubject: Re: Pietenpol-List: Fw:=0AGardiner
and his Pietenpol, December 2009=0AGardiner--=0AYour Piet looks great! Are
you going to fly it to Brodhead=0Athis year?=0A =0A--Mac in Oregon=0A>=0A>>
=0A>----- Original Message ----- =0A>>=0A>From:airlion =0A>>=0A>To:pietenpo
l =0A>>=0A>Sent:Wednesday,=0A>December 16, 2009 3:22 PM=0A>>=0A>Subject:Pie
tenpol-List:=0A>Fw: Gardiner and his Pietenpol, December 2009=0A>>=0A> =0A>
>=0A>>=0A>Hey listers, Has anyone=0A>done a stress analysis for the pietenp
ol? I have a friend here in Lagrange that=0A>is an engineer and used to wor
k for Lockheed. He says that he can do a stress test=0A>on my Piet. I will
let ya'll know the results. Cheers, Gardiner=0A>>=0A> =0A>>=0A>----- Forwar
ded Message ----=0A>From: Susan Mason <susangmason@gmail.com>=0A>To: Gardin
er Mason <airlion@bellsouth.net>=0A>Sent: Mon, December 7, 2009=0A>7:06:12
PM=0A>Subject: Gardiner and his=0A>Pietenpol, December 2009=0A>>=0A>>=0A___
_____________________________=0A >=0A>: 4/6/07 12:00 AM
Message 6
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| Subject: | Re: Bolts and stress anal-isis |
I understand Bill and thank you for your Internet research.-- That was/
is going to be my next step, but I wanted to ask the list first just in cas
e someone out there had some real world experience using SS on the tail. (o
r anywhere)-
--- On Thu, 12/17/09, Bill Church <billspiet@sympatico.ca> wrote:
From: Bill Church <billspiet@sympatico.ca>
Subject: Pietenpol-List: Re: Bolts and stress anal-isis
>
My gut feeling would be that AN bolts would be the way to go, and that stai
nless steel fasteners should only be used for non-structural applications,
such as trim attachment, etc.- - BUT I just did a quick internet search,
and found a website that lists MS27039C stainless steel machine screws with
125,000 PSI listed strength:
http://www.skybolt.com
The website won't allow me to give a direct link to the specific page, so y
ou'll have to go over to the left hand side of the page, and click "online
purchasing", then click on "AN-MS-NAS Screws", and then "MS27039C Screws-St
ainless". A screen shot is attached for reference.
So, the short answer is MAYBE you can buy AIRCRAFT GRADE stainless steel fa
steners that have strength comparable to AN bolts - but you should check ve
ry carefully with the supplier regarding the strength. I have no idea how t
hese stainless steel fasteners compare with regards to fatigue strength, or
anything else, for that matter.
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277984#277984
Attachments:
http://forums.matronics.com//files/skybolt_114.jpg
le, List Admin.
Message 7
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| Subject: | Re: Bolts and stress anal-isis |
Thanks David. For my own curiosity, I will look into this further. I did no
tice in the A.C. Spruce catalog for some of their SS hardware they state th
e specs. that the bolts/screws meet.- (meets mil spec XXX-XX.XXX)- I pl
an to look into these just to see what they say. I don't know if anyone has
done so for use in a Pietenpol, but I think it would be nice, although exp
ensive, to find SUITABLE SS hardware wherever it can be used. If it can't,
it can't.
--- On Thu, 12/17/09, David Paule <dpaule@frii.com> wrote:
From: David Paule <dpaule@frii.com>
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
In certified aircraft, specific hardware is included as part of the type ce
rtificate. Hardware that meets the same specifications as original are to b
e used, even if it is stainless steel.
-
In some certified aircraft, certain particular stainless steel hardware has
been used. I know of the reasonably wide use of A286, an iron, chrome and
nickel alloy, due to his high strength and relatively high toughness.
-
The thing that's important in certified aircraft is to use the specified ha
rdware for that particular application - and sometimes it will be stainless
steel.
-
David Paule
-
-
-
-
----- Original Message -----
From: Gene Rambo
Sent: Thursday, December 17, 2009 3:26 PM
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
At least in a certified aircraft stainless hardware-is never approved for
structural use.- Just because there is a MS number associated with a sta
inless screw does not necessarily mean that is is approved for a particular
purpose, just that there is a stock number for it.- Even though the tens
ile strength of the material appears to equate to other steel hardware, I w
ould not use it in a structural location.
-
Gene
A&P and IA since 1981
----- Original Message -----
From: Bill Church
Sent: Thursday, December 17, 2009 4:16 PM
Subject: Pietenpol-List: Re: Bolts and stress anal-isis
>
My gut feeling would be that AN bolts would be the way to go, and that stai
nless steel fasteners should only be used for non-structural applications,
such as trim attachment, etc.- - BUT I just did a quick internet search,
and found a website that lists MS27039C stainless steel machine screws with
125,000 PSI listed strength:
http://www.skybolt.com
The website won't allow me to give a direct link to the specific page, so y
ou'll have to go over to the left hand side of the page, and click "online
purchasing", then click on "AN-MS-NAS Screws", and then "MS27039C Screws-St
ainless". A screen shot is attached for reference.
So, the short answer is MAYBE you can buy AIRCRAFT GRADE stainless steel fa
steners that have strength comparable to AN bolts - but you should check ve
ry carefully with the supplier regarding the strength. I have no idea how t
hese stainless steel fasteners compare with regards to fatigue strength, or
anything else, for that matter.
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277984#277984
Attachments:
http://forums -- Please Support Your Lists This Month (And Get the Annual l
ink Free * AeroElectric http://www.matronics.com/c Thank you for your gener
ous ;--------------------- -Matt
Dralle, List nbsp;------ Features Chat, http://www.matnbsp;-
--- via the Web title=http://forums.matronics.com/ href="http://f
orums.matronics.com">http://forums.matronics.com
_=============
href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/chr
ef="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matroni
cs.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
Message 8
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| Subject: | Re: Bolts and stress anal-isis |
I think all this talk about the strength of SS is much to do about
nothing. The wood in the tail will fail well before even grade 3 bolt will fail.
Bolt two 1 by's together, strand one and pull on the other. See what fails
first.
Howdy
Message 9
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| Subject: | stops and sticks |
An idea worth pursuing....although I'm not convinced that control stops are
necessary.
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
Do not archive
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Blumberg
Sent: Friday, December 18, 2009 5:50 AM
Subject: Pietenpol-List: stops and sticks
<douweblumberg@earthlink.net>
Both control sticks on 799B are wood. They're laminated up from doug fir
with a center of 1/4" marine plywood, as are my cabanes and lift struts.
Not flight tested, but VERY strong.
Since my controls are all in, I've been trying to figure out a way to modify
some stops into the design. I got to thinking, why couldn't one use the
front stick actuator rod by simply putting a couple of hose clamps on it
under the passenger seat. One forward to hit the ply front support and one
back to hit the passenger back rest/bulkhead? seems simple and ultimately
adjustable. One could always glue or screw a patch of nylon sheet to take
any abrasion that may occur.
D
Message 10
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| Subject: | Re: stops and sticks |
I am flying a GN-1 Aircamper,the cousin to the Piet and I don't have any st
ops at all and I don't seem to have any problems in this area.=0A=0A=0A=0A
=0A________________________________=0AFrom: Gary Boothe <gboothe5@comcast.n
et>=0ATo: pietenpol-list@matronics.com=0ASent: Fri, December 18, 2009 9:49:
39 AM=0ASubject: RE: Pietenpol-List: stops and sticks=0A=0A--> Pietenpol-Li
st message posted by: "Gary Boothe" <gboothe5@comcast.net>=0A=0AAn idea wor
th pursuing....although I'm not convinced that control stops are=0Anecessar
y.=0A=0AGary Boothe=0ACool, Ca.=0APietenpol=0AWW Corvair Conversion, mounte
d=0ATail done, Fuselage on gear=0A(16 ribs down.)=0ADo not archive=0A=0A---
--Original Message-----=0AFrom: owner-pietenpol-list-server@matronics.com
=0A[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe=0A
Blumberg=0ASent: Friday, December 18, 2009 5:50 AM=0ATo: pietenpolgroup=0AS
ubject: Pietenpol-List: stops and sticks=0A=0A--> Pietenpol-List message po
sted by: Douwe Blumberg=0A<douweblumberg@earthlink.net>=0A=0ABoth control s
ticks on 799B are wood.- They're laminated up from doug fir=0Awith a cent
er of 1/4" marine plywood, as are my cabanes and lift struts.=0ANot flight
tested, but VERY strong.=0A=0ASince my controls are all in, I've been tryin
g to figure out a way to modify=0Asome stops into the design.- I got to t
hinking, why couldn't one use the=0Afront stick actuator rod by simply putt
ing a couple of hose clamps on it=0Aunder the passenger seat.- One forwar
d to hit the ply front support and one=0Aback to hit the passenger- back
rest/bulkhead?- seems simple and ultimately=0Aadjustable.- One could al
ways glue or screw a patch of nylon sheet to take=0Aany abrasion that may o
====
Message 11
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| Subject: | Control stops/pulley guards |
I didn't have any stops in my Piet, but I started this thread because
someone said the FAA inspector wanted to see them...
I'm not sure they are necessary either, but I don't want to blow my
inspection for something this easy to correct.
Anybody want to talk about cable/pulley guards? I dont have any of
those either (yet) and my Piet is all covered
Ben Charvet
Gary Boothe wrote:
>
> An idea worth pursuing....although I'm not convinced that control stops are
> necessary.
>
>
Message 12
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| Subject: | Control stops/pulley guards |
Ben:
I did use pulley guards on all of my pulleys. I do remember some posts in
the past where those that didn't install them had to ad them before their
FAA inspector would issue the air worthiness certificate. That is why I put
them on mine (plus the extra safety factor).
Rick Schreiber
> [Original Message]
> From: Ben Charvet <bcharvet@bellsouth.net>
> To: <pietenpol-list@matronics.com>
> Date: 12/18/2009 9:15:43 AM
> Subject: Pietenpol-List: Control stops/pulley guards
>
>
> I didn't have any stops in my Piet, but I started this thread because
> someone said the FAA inspector wanted to see them...
> I'm not sure they are necessary either, but I don't want to blow my
> inspection for something this easy to correct.
> Anybody want to talk about cable/pulley guards? I dont have any of
> those either (yet) and my Piet is all covered
>
> Ben Charvet
>
>
> Gary Boothe wrote:
<gboothe5@comcast.net>
> >
> > An idea worth pursuing....although I'm not convinced that control stops
are
> > necessary.
> >
> >
>
>
Message 13
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|
Ran across this on e bay if anyone ins interested with drawings for the
biplane version.
item number 290382001867
These drawings could be framed and hung on the wall like art. There are 8
pages of 18"x24" blueprints for the Aircamper or Sky Scout.. Also included
are the supplemental drawings ( 3 pages) for the construction of the bi-wing
version. This supplement includes full size drawings for the wing ribs.
The Aircamper is an all wood, two place airplane designed for easy building
and fun flying. Included is supplemental drawings for a longer fuselage
version if using a lighter engine than the original. The plans also include
the conversion of a Model-A Ford motor for aircraft use.These plans have been
in my closet for 20 years and never used or even looked at in that time.
These plans plus supplemental sell for $160.00, but I will start the bidding
at $50.00. Thank you for looking and good luck. There is shipping and
handling fee of $15.00.
John
Message 14
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| Subject: | Control stops/pulley guards |
Pulley guards - absolutely, YES. That's a different issue from control
stops.
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Richard
Schreiber
Sent: Friday, December 18, 2009 7:42 AM
Subject: RE: Pietenpol-List: Control stops/pulley guards
<lmforge@earthlink.net>
Ben:
I did use pulley guards on all of my pulleys. I do remember some posts in
the past where those that didn't install them had to ad them before their
FAA inspector would issue the air worthiness certificate. That is why I put
them on mine (plus the extra safety factor).
Rick Schreiber
> [Original Message]
> From: Ben Charvet <bcharvet@bellsouth.net>
> To: <pietenpol-list@matronics.com>
> Date: 12/18/2009 9:15:43 AM
> Subject: Pietenpol-List: Control stops/pulley guards
>
>
> I didn't have any stops in my Piet, but I started this thread because
> someone said the FAA inspector wanted to see them...
> I'm not sure they are necessary either, but I don't want to blow my
> inspection for something this easy to correct.
> Anybody want to talk about cable/pulley guards? I dont have any of
> those either (yet) and my Piet is all covered
>
> Ben Charvet
>
>
> Gary Boothe wrote:
<gboothe5@comcast.net>
> >
> > An idea worth pursuing....although I'm not convinced that control stops
are
> > necessary.
> >
> >
>
>
Message 15
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| Subject: | Re: Bolts and stress anal-isis |
In general, the suffix "C" means 300 series stainless, and it's not
nearly as strong as the standard hardware. If you find stuff with the
suffix "N" it's probably the good A286, with a strength of 160 ksi, very
good stuff.
I hesitate to post this because I don't know that the "C" and "N"
suffixes apply generally or if they sometimes mean different things. So
be careful out there and check the specs yourself.
But it's usually so expensive that even the aerospace companies, that
use it in large quantities, complain about the cost.
Worth mentioning: If you are installing a nut that is self-locking, and
you need to put a specific torque on it, that's in addition to the
running torque. You've got to measure the running torque before the nut
seats and add to that to the spec torque. In most cases, though, you
don't need to torque to a specification. This only applies to those
cases where you do.
>From personal experience with a 54 year old Cessna, I can say that AN
hardware is remarkably durable and that provided that ordinary care is
taken, perfectly satisfactory. My airplane still has some original
hardware externally, and it's still airworthy. No longer shiny, to be
sure, but airworthy still. The interior hardware is entirely sound, and
in some cases isn't even tarnished.
If I were building a Pietenpol, I'd ignore the lure of stainless steel
where possible. It would only add to my difficulties. What I'd try to do
is keep the types of hardware to a minimum, using AN (and NAS and MS)
hardware where I could.
David Paule
----- Original Message -----
From: Michael Perez
To: pietenpol-list@matronics.com
Sent: Friday, December 18, 2009 7:38 AM
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
Thanks David. For my own curiosity, I will look into this
further. I did notice in the A.C. Spruce catalog for some of their SS
hardware they state the specs. that the bolts/screws meet. (meets mil
spec XXX-XX.XXX) I plan to look into these just to see what they say. I
don't know if anyone has done so for use in a Pietenpol, but I think it
would be nice, although expensive, to find SUITABLE SS hardware wherever
it can be used. If it can't, it can't.
--- On Thu, 12/17/09, David Paule <dpaule@frii.com> wrote:
From: David Paule <dpaule@frii.com>
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
To: pietenpol-list@matronics.com
Date: Thursday, December 17, 2009, 7:30 PM
In certified aircraft, specific hardware is included as part
of the type certificate. Hardware that meets the same specifications as
original are to be used, even if it is stainless steel.
In some certified aircraft, certain particular stainless steel
hardware has been used. I know of the reasonably wide use of A286, an
iron, chrome and nickel alloy, due to his high strength and relatively
high toughness.
The thing that's important in certified aircraft is to use the
specified hardware for that particular application - and sometimes it
will be stainless steel.
David Paule
----- Original Message -----
From: Gene Rambo
To: pietenpol-list@matronics.com
Sent: Thursday, December 17, 2009 3:26 PM
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
At least in a certified aircraft stainless hardware is never
approved for structural use. Just because there is a MS number
associated with a stainless screw does not necessarily mean that is is
approved for a particular purpose, just that there is a stock number for
it. Even though the tensile strength of the material appears to equate
to other steel hardware, I would not use it in a structural location.
Gene
A&P and IA since 1981
----- Original Message -----
From: Bill Church
To: pietenpol-list@matronics.com
Sent: Thursday, December 17, 2009 4:16 PM
Subject: Pietenpol-List: Re: Bolts and stress anal-isis
<billspiet@sympatico.ca>
My gut feeling would be that AN bolts would be the way to
go, and that stainless steel fasteners should only be used for
non-structural applications, such as trim attachment, etc. - BUT I just
did a quick internet search, and found a website that lists MS27039C
stainless steel machine screws with 125,000 PSI listed strength:
http://www.skybolt.com
The website won't allow me to give a direct link to the
specific page, so you'll have to go over to the left hand side of the
page, and click "online purchasing", then click on "AN-MS-NAS Screws",
and then "MS27039C Screws-Stainless". A screen shot is attached for
reference.
So, the short answer is MAYBE you can buy AIRCRAFT GRADE
stainless steel fasteners that have strength comparable to AN bolts -
but you should check very carefully with the supplier regarding the
strength. I have no idea how these stainless steel fasteners compare
with regards to fatigue strength, or anything else, for that matter.
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277984#277984
Attachments:
http://forums -- Please Support Your Lists This Month (And
Get the Annual link Free * AeroElectric http://www.matronics.com/c Thank
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| Subject: | Quick disconnect front control stick |
Here is a photo of my control sticks. The front one has those spring-loade
d push-in pins for quick disconnect. I got those from Mc master-Carr. The
rear has the Ken Perkins stops. I found that I had to weld those stops on
a little off-center, to avoid contacting the control cable that rides alo
ng the top of that torque tube. Then on the torque tube where they contact
, I applied small patches of hard rubber 1/8" thick so as not to bang on
that tube too hard.
Dan Helsper
Poplar Grove, IL.
Message 17
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| Subject: | Re: Bolts and stress anal-isis |
My feelings exactly. If steel fittings and bolts are breaking in flight, th
ere probably isn't much wood left to fly anyway.
-
-
--- On Fri, 12/18/09, vahowdy@aol.com <vahowdy@aol.com> wrote:
From: vahowdy@aol.com <vahowdy@aol.com>
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
- I think all this talk about the strength of SS is much to do about noth
ing.- The wood in the tail will fail well before-even -grade 3 bolt w
ill fail. Bolt two 1 by's together, strand one and pull on the other. See w
hat fails first.
Howdy
Message 18
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| Subject: | Quick disconnect front control stick |
Nice! I would have expected no less from you, Dan.
If you find yourself unexpectedly on a plane to N.California this weekend,
be sure to stop by.the Cool Propeller Company is in full swing!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
helspersew@aol.com
Sent: Friday, December 18, 2009 8:08 AM
Subject: Pietenpol-List: Quick disconnect front control stick
Here is a photo of my control sticks. The front one has those spring-loaded
push-in pins for quick disconnect. I got those from Mc master-Carr. The rear
has the Ken Perkins stops. I found that I had to weld those stops on a
little off-center, to avoid contacting the control cable that rides along
the top of that torque tube. Then on the torque tube where they contact, I
applied small patches of hard rubber 1/8" thick so as not to bang on that
tube too hard.
Dan Helsper
Poplar Grove, IL.
Message 19
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| Subject: | Re: Bolts and stress anal-isis |
I leaning that way as well David. SS costs more and it would be nice to hav
e constant hardware throughout the plane.
--- On Fri, 12/18/09, David Paule <dpaule@frii.com> wrote:
From: David Paule <dpaule@frii.com>
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
In general, the suffix "C" means 300 series stainless, and it's not nearly
as strong as the standard hardware. If you find stuff with the suffix "N" i
t's probably the good A286, with a strength of 160 ksi, very good stuff.
-
I hesitate to post this because I don't know that the "C" and "N" suffixes
apply generally or if they sometimes mean different things. So be careful o
ut there and check the specs yourself.
-
But it's usually so expensive that even the aerospace companies, that use i
t in large quantities, complain about the cost.
-
Worth mentioning: If you are installing a nut that is self-locking, and you
need to put-a specific torque on it, that's in addition to the running t
orque. You've got to measure the running torque before the nut seats and ad
d to that to the spec torque. In most cases, though, you don't need to torq
ue to a specification. This only applies to those cases where you do.
-
>From personal experience with a 54 year old Cessna, I can say that AN hardw
are is remarkably durable and that provided that ordinary care is taken, pe
rfectly satisfactory. My airplane still has some original hardware external
ly, and it's still airworthy. No longer shiny, to be sure, but airworthy st
ill. The interior hardware is entirely sound, and in some cases isn't even
tarnished.
-
If I were building a Pietenpol, I'd ignore the lure of stainless steel wher
e possible. It would only add to my difficulties. What I'd try to do is kee
p the types of hardware to a minimum, using AN (and NAS and MS)-hardware
where I could.
-
David Paule
-
----- Original Message -----
From: Michael Perez
Sent: Friday, December 18, 2009 7:38 AM
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
Thanks David. For my own curiosity, I will look into this further. I did no
tice in the A.C. Spruce catalog for some of their SS hardware they state th
e specs. that the bolts/screws meet.- (meets mil spec XXX-XX.XXX)- I pl
an to look into these just to see what they say. I don't know if anyone has
done so for use in a Pietenpol, but I think it would be nice, although exp
ensive, to find SUITABLE SS hardware wherever it can be used. If it can't,
it can't.
--- On Thu, 12/17/09, David Paule <dpaule@frii.com> wrote:
From: David Paule <dpaule@frii.com>
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
In certified aircraft, specific hardware is included as part of the type ce
rtificate. Hardware that meets the same specifications as original are to b
e used, even if it is stainless steel.
-
In some certified aircraft, certain particular stainless steel hardware has
been used. I know of the reasonably wide use of A286, an iron, chrome and
nickel alloy, due to his high strength and relatively high toughness.
-
The thing that's important in certified aircraft is to use the specified ha
rdware for that particular application - and sometimes it will be stainless
steel.
-
David Paule
-
-
-
-
----- Original Message -----
From: Gene Rambo
Sent: Thursday, December 17, 2009 3:26 PM
Subject: Re: Pietenpol-List: Re: Bolts and stress anal-isis
At least in a certified aircraft stainless hardware-is never approved for
structural use.- Just because there is a MS number associated with a sta
inless screw does not necessarily mean that is is approved for a particular
purpose, just that there is a stock number for it.- Even though the tens
ile strength of the material appears to equate to other steel hardware, I w
ould not use it in a structural location.
-
Gene
A&P and IA since 1981
----- Original Message -----
From: Bill Church
Sent: Thursday, December 17, 2009 4:16 PM
Subject: Pietenpol-List: Re: Bolts and stress anal-isis
>
My gut feeling would be that AN bolts would be the way to go, and that stai
nless steel fasteners should only be used for non-structural applications,
such as trim attachment, etc.- - BUT I just did a quick internet search,
and found a website that lists MS27039C stainless steel machine screws with
125,000 PSI listed strength:
http://www.skybolt.com
The website won't allow me to give a direct link to the specific page, so y
ou'll have to go over to the left hand side of the page, and click "online
purchasing", then click on "AN-MS-NAS Screws", and then "MS27039C Screws-St
ainless". A screen shot is attached for reference.
So, the short answer is MAYBE you can buy AIRCRAFT GRADE stainless steel fa
steners that have strength comparable to AN bolts - but you should check ve
ry carefully with the supplier regarding the strength. I have no idea how t
hese stainless steel fasteners compare with regards to fatigue strength, or
anything else, for that matter.
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=277984#277984
Attachments:
http://forums -- Please Support Your Lists This Month (And Get the Annual l
ink Free * AeroElectric http://www.matronics.com/c Thank you for your gener
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Message 20
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| Subject: | Re: Quick disconnect front control stick |
Photos of your prop please. :O)
Dan Helsper
Poplar Grove, IL.
-----Original Message-----
From: Gary Boothe <gboothe5@comcast.net>
Sent: Fri, Dec 18, 2009 10:24 am
Subject: RE: Pietenpol-List: Quick disconnect front control stick
Nice! I would have expected no less from you, Dan.
If you find yourself unexpectedly on a plane to N.California this weekend,
be sure to stop bythe Cool Propeller Company is in full swing!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down)
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-li
st-server@matronics.com] On Behalf Of helspersew@aol.com
Sent: Friday, December 18, 2009 8:08 AM
Subject: Pietenpol-List: Quick disconnect front control stick
Here is a photo of my control sticks. The front one has those spring-loade
d push-in pins for quick disconnect. I got those from Mc master-Carr. The
rear has the Ken Perkins stops. I found that I had to weld those stops on
a little off-center, to avoid contacting the control cable that rides alo
ng the top of that torque tube. Then on the torque tube where they contact
, I applied small patches of hard rubber 1/8" thick so as not to bang on
that tube too hard.
Dan Helsper
Poplar Grove, IL.
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Message 21
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| Subject: | Control stops/pulley guards |
Ben, the FAA inspector (from the FSDO - not a DAR) that inspected mine did
not say a word about control stops (I have them) but did want to see that I
had pulley guards on every pulley. I consider them essential, particularly
on a Pietenpol, because the geometry of the control system is such that when
one cable on a control surface is tight, the other generally goes slack
somewhere in its travel (this is especially true of the elevator cables).
Any time a cable can go slack, it can slip off its pulley.
Hopefully, having the Piet covered won't be too much of a problem.
Generally anywhere you have a pulley there needs to be an inspection hole
anyway, so the pulleys can be lubricated during the annual condition
inspection. In many cases, you can make a very simple guard that picks up
the pulley axle bolt and then has some other feature to hold it in position,
as shown below:
Some of my pulley guards are nothing more than a cotter pin through two
holes in the pulley brackets. They don't need to be elaborate, but they
need to be there, and they need to ENSURE that the cable cannot get off the
pulley and wedge between the pulley and the bracket. That could make for a
very ugly situation.
Jack Phillips
NX899JP
Raleigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Ben Charvet
Sent: Friday, December 18, 2009 10:09 AM
Subject: Pietenpol-List: Control stops/pulley guards
I didn't have any stops in my Piet, but I started this thread because
someone said the FAA inspector wanted to see them...
I'm not sure they are necessary either, but I don't want to blow my
inspection for something this easy to correct.
Anybody want to talk about cable/pulley guards? I dont have any of
those either (yet) and my Piet is all covered
Ben Charvet
Gary Boothe wrote:
>
> An idea worth pursuing....although I'm not convinced that control stops
are
> necessary.
>
>
Message 22
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| Subject: | Re: Quick disconnect front control stick |
Yes! Let's see it.....
-----Original Message-----
From: helspersew@aol.com
Sent: Dec 18, 2009 9:44 AM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Photos of your prop please. :O)
Dan Helsper
Poplar Grove, IL.
-----Original Message-----
From: Gary Boothe <gboothe5@comcast.net>
Sent: Fri, Dec 18, 2009 10:24 am
Subject: RE: Pietenpol-List: Quick disconnect front control stick
Nice! I would have expected no less from you, Dan.
If you find yourself unexpectedly on a plane to N.California this weekend, be sure
to stop bythe Cool Propeller Company is in full swing!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down)
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of helspersew@aol.com
Sent: Friday, December 18, 2009 8:08 AM
Subject: Pietenpol-List: Quick disconnect front control stick
Here is a photo of my control sticks. The front one has those spring-loaded push-in
pins for quick disconnect. I got those from Mc master-Carr. The rear has
the Ken Perkins stops. I found that I had to weld those stops on a little off-center,
to avoid contacting the control cable that rides along the top of that
torque tube. Then on the torque tube where they contact, I applied small patches
of hard rubber 1/8" thick so as not to bang on that tube too hard.
Dan Helsper
Poplar Grove, IL.
===================================
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m/" target=_blank>www.buildersbooks.com
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Message 23
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| Subject: | Quick disconnect front control stick |
Will do. I expect to spend 2 weekends...unless I really get over my
trepidation about using a chainsaw!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jim Markle
Sent: Friday, December 18, 2009 9:56 AM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Yes! Let's see it.....
-----Original Message-----
From: helspersew@aol.com
Sent: Dec 18, 2009 9:44 AM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Photos of your prop please. :O)
Dan Helsper
Poplar Grove, IL.
-----Original Message-----
From: Gary Boothe <gboothe5@comcast.net>
Sent: Fri, Dec 18, 2009 10:24 am
Subject: RE: Pietenpol-List: Quick disconnect front control stick
Nice! I would have expected no less from you, Dan.
If you find yourself unexpectedly on a plane to N.California this weekend,
be sure to stop by.the Cool Propeller Company is in full swing!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
helspersew@aol.com
Sent: Friday, December 18, 2009 8:08 AM
Subject: Pietenpol-List: Quick disconnect front control stick
Here is a photo of my control sticks. The front one has those spring-loaded
push-in pins for quick disconnect. I got those from Mc master-Carr. The rear
has the Ken Perkins stops. I found that I had to weld those stops on a
little off-center, to avoid contacting the control cable that rides along
the top of that torque tube. Then on the torque tube where they contact, I
applied small patches of hard rubber 1/8" thick so as not to bang on that
tube too hard.
Dan Helsper
Poplar Grove, IL.
===================================
=_blank>www.aeroelectric.com
m/" target=_blank>www.buildersbooks.com
=_blank>www.homebuilthelp.com
_blank>http://www.matronics.com/contribution
===================================
t" target=_blank>http://www.matronics.com/Navigator?Pietenpol-List
===================================
tp://forums.matronics.com
===================================
Message 24
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| Subject: | Re: Quick disconnect front control stick |
Gary,
A word to the wise, keep the bar of the saw buried in the wood, right up
to where it attaches to the engine. Do NOT try to cut with the tip of
the blade. If it kicks back and you're not prepared, you could lose an
arm (or a head...). If it kicks and the bar is buried, then it won't
kick far. You'll also have better control over the saw with it buried
in the wood and you can use the grabber teeth on the engine to lever
your way through (a little - it's still better to just let it go through
at it's own pace).
Good luck!
Dan
Gary Boothe wrote:
>
> Will do. I expect to spend 2 weekends...unless I really get over my
> trepidation about using a chainsaw!
>
> Gary Boothe
> Cool, Ca.
> Pietenpol
> WW Corvair Conversion, mounted
> Tail done, Fuselage on gear
> (16 ribs down.)
--
Dan Yocum
Fermilab 630.840.6509
yocum@fnal.gov, http://fermigrid.fnal.gov
"I fly because it releases my mind from the tyranny of petty things."
Message 25
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| Subject: | Quick disconnect front control stick |
Roger...thanks!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
Do not archive
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Dan Yocum
Sent: Friday, December 18, 2009 12:04 PM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Gary,
A word to the wise, keep the bar of the saw buried in the wood, right up
to where it attaches to the engine. Do NOT try to cut with the tip of
the blade. If it kicks back and you're not prepared, you could lose an
arm (or a head...). If it kicks and the bar is buried, then it won't
kick far. You'll also have better control over the saw with it buried
in the wood and you can use the grabber teeth on the engine to lever
your way through (a little - it's still better to just let it go through
at it's own pace).
Good luck!
Dan
Gary Boothe wrote:
>
> Will do. I expect to spend 2 weekends...unless I really get over my
> trepidation about using a chainsaw!
>
> Gary Boothe
> Cool, Ca.
> Pietenpol
> WW Corvair Conversion, mounted
> Tail done, Fuselage on gear
> (16 ribs down.)
--
Dan Yocum
Fermilab 630.840.6509
yocum@fnal.gov, http://fermigrid.fnal.gov
"I fly because it releases my mind from the tyranny of petty things."
Message 26
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| Subject: | Re: Quick disconnect front control stick |
Sage words from Dan "three finger" Yocum!
do not archive
John Hofmann
Vice-President, Information Technology
The Rees Group, Inc.
2810 Crossroads Drive, Ste 3800
Madison, WI 53718
Phone: 608.443.2468 ext 150
Fax: 608.443.2474
Email: jhofmann@reesgroupinc.com
On Dec 18, 2009, at 2:03 PM, Dan Yocum wrote:
>
> Gary,
>
> A word to the wise, keep the bar of the saw buried in the wood, right
up to where it attaches to the engine. Do NOT try to cut with the tip
of the blade. If it kicks back and you're not prepared, you could lose
an arm (or a head...). If it kicks and the bar is buried, then it won't
kick far. You'll also have better control over the saw with it buried
in the wood and you can use the grabber teeth on the engine to lever
your way through (a little - it's still better to just let it go through
at it's own pace).
>
> Good luck!
> Dan
>
>
> Gary Boothe wrote:
<gboothe5@comcast.net>
>> Will do. I expect to spend 2 weekends...unless I really get over my
>> trepidation about using a chainsaw!
>> Gary Boothe
>> Cool, Ca.
>> Pietenpol
>> WW Corvair Conversion, mounted
>> Tail done, Fuselage on gear
>> (16 ribs down.)
>
> --
> Dan Yocum
> Fermilab 630.840.6509
> yocum@fnal.gov, http://fermigrid.fnal.gov
> "I fly because it releases my mind from the tyranny of petty things."
>
>
>
>
Message 27
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| Subject: | Quick disconnect front control stick |
AKA."Lefty."
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
Do not archive
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of John Hofmann
Sent: Friday, December 18, 2009 12:43 PM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Sage words from Dan "three finger" Yocum!
do not archive
John Hofmann
Vice-President, Information Technology
The Rees Group, Inc.
2810 Crossroads Drive, Ste 3800
Madison, WI 53718
Phone: 608.443.2468 ext 150
Fax: 608.443.2474
Email: jhofmann@reesgroupinc.com
On Dec 18, 2009, at 2:03 PM, Dan Yocum wrote:
Gary,
A word to the wise, keep the bar of the saw buried in the wood, right up to
where it attaches to the engine. Do NOT try to cut with the tip of the
blade. If it kicks back and you're not prepared, you could lose an arm (or
a head...). If it kicks and the bar is buried, then it won't kick far.
You'll also have better control over the saw with it buried in the wood and
you can use the grabber teeth on the engine to lever your way through (a
little - it's still better to just let it go through at it's own pace).
Good luck!
Dan
Gary Boothe wrote:
Will do. I expect to spend 2 weekends...unless I really get over my
trepidation about using a chainsaw!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
--
Dan Yocum
Fermilab 630.840.6509
yocum@fnal.gov, http://fermigrid.fnal.gov
"I fly because it releases my mind from the tyranny of petty -- Please
Support Your Lists This (And Get * The Builder's Bookstore
http://www.matronics.com/co <http://www.matronics.com/contribution>
-Matt Dralle, List - The --> http://www.matr
<http://www.matronics.com/Navigator?Pietenpol-List>
&n============
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Message 28
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| Subject: | Re: Quick disconnect front control stick |
When I did mine, I used a 16" electric chain saw. Slower, constant speed,
and I believe safer to operate. Personally I would never use a gas chain
saw for this purpose. There are quite a few minutes of work with the chai
nsaw, so fatigue would be a factor.
Dan Helsper
Poplar Grove, IL.
-----Original Message-----
From: John Hofmann <jhofmann@reesgroupinc.com>
Sent: Fri, Dec 18, 2009 2:42 pm
Subject: Re: Pietenpol-List: Quick disconnect front control stick
Sage words from Dan "three finger" Yocum!
do not archive
John Hofmann
Vice-President, Information Technology
The Rees Group, Inc.
2810 Crossroads Drive, Ste 3800
Madison, WI 53718
Phone: 608.443.2468 ext 150
Fax: 608.443.2474
Email: jhofmann@reesgroupinc.com
On Dec 18, 2009, at 2:03 PM, Dan Yocum wrote:
Gary,
A word to the wise, keep the bar of the saw buried in the wood, right up
to where it attaches to the engine. Do NOT try to cut with the tip of th
e blade. If it kicks back and you're not prepared, you could lose an arm
(or a head...). If it kicks and the bar is buried, then it won't kick fa
r. You'll also have better control over the saw with it buried in the woo
d and you can use the grabber teeth on the engine to lever your way throug
h (a little - it's still better to just let it go through at it's own pace
).
Good luck!
Dan
Gary Boothe wrote:
Will do. I expect to spend 2 weekends...unless I really get over my
trepidation about using a chainsaw!
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
--
Dan Yocum
Fermilab 630.840.6509
yocum@fnal.gov, http://fermigrid.fnal.gov
"I fly because it releases my mind from the tyranny of petty -- Plea
se Support Your Lists This (And Get * The Builder's Bookstor
e http://www.matronics.com/co -Matt Dralle, Li
st - The --> http://www.matr &n=======
=====
========================
===========
-
-= -- Please Support Your Lists This Month --
-= (And Get Some AWESOME FREE Gifts!)
-
-= November is the Annual List Fund Raiser. Click on
-= the Contribution link below to find out more about
-= this year's Terrific Free Incentive Gifts provided
-= by:
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-
-= November is the Annual List Fund Raiser. Click on
-= the Contribution link below to find out more about
-= this year's Terrific Free Incentive Gifts provided
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-= * HomebuiltHELP www.homebuilthelp.com
-
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-
-= --> http://www.matronics.com/contribution
-
-= Thank you for your generous support!
-
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-
-========================
========================
===========
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Message 29
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| Subject: | Re: Quick disconnect front control stick |
Nuh uh. He tol' me he lost that finger 'cause he forgot to pull it
out before sitting down. Well, it's wut he tol' me, anyway.
>Sage words from Dan "three finger" Yocum!
>
>do not archive
>
Message 30
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| Subject: | Re: Quick disconnect front control stick |
I'll bet he learned not to reach across the tablesaw for his beer;+}
----- Original Message -----
From: Jeff Boatright <jboatri@emory.edu>
Subject: Re: Pietenpol-List: Quick disconnect front control stick
>
>
> Nuh uh. He tol' me he lost that finger 'cause he forgot to pull it
> out before sitting down. Well, it's wut he tol' me, anyway.
>
> >Sage words from Dan "three finger" Yocum!
> >
> >do not archive
> >
>
>
>
>
>
Message 31
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| Subject: | Quick disconnect front control stick |
My dad sawed the same thumb off, twice. After the 2nd time he told the
doctor not to bother, as the thumb was obviously in the way....
Gary Boothe
Cool, Ca.
Pietenpol
WW Corvair Conversion, mounted
Tail done, Fuselage on gear
(16 ribs down.)
Do not archive
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Dortch,
Steven D MAJ NG NG NGB
Sent: Friday, December 18, 2009 1:45 PM
Subject: Re: Pietenpol-List: Quick disconnect front control stick
<steven.d.dortch@us.army.mil>
I'll bet he learned not to reach across the tablesaw for his beer;+}
----- Original Message -----
From: Jeff Boatright <jboatri@emory.edu>
Subject: Re: Pietenpol-List: Quick disconnect front control stick
>
>
> Nuh uh. He tol' me he lost that finger 'cause he forgot to pull it
> out before sitting down. Well, it's wut he tol' me, anyway.
>
> >Sage words from Dan "three finger" Yocum!
> >
> >do not archive
> >
>
>
>
>
>
Message 32
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| Subject: | Re: Control stops/pulley guards |
I've figured our a way to add them, sure would have been easier before
the cover. All of my pulley brackets are so tight to the sides of the
pulleys that I didn't see any way the cable could jam between the pulley
and bracket. Jack, I couldn't find a way to open a XX.dat file.
Ben
Jack Phillips wrote:
> Ben, the FAA inspector (from the FSDO - not a DAR) that inspected mine did
> not say a word about control stops (I have them) but did want to see that I
> had pulley guards on every pulley. I consider them essential, particularly
> on a Pietenpol, because the geometry of the control system is such that when
> one cable on a control surface is tight, the other generally goes slack
> somewhere in its travel (this is especially true of the elevator cables).
> Any time a cable can go slack, it can slip off its pulley.
>
> Hopefully, having the Piet covered won't be too much of a problem.
> Generally anywhere you have a pulley there needs to be an inspection hole
> anyway, so the pulleys can be lubricated during the annual condition
> inspection. In many cases, you can make a very simple guard that picks up
> the pulley axle bolt and then has some other feature to hold it in position,
> as shown below:
>
>
> Some of my pulley guards are nothing more than a cotter pin through two
> holes in the pulley brackets. They don't need to be elaborate, but they
> need to be there, and they need to ENSURE that the cable cannot get off the
> pulley and wedge between the pulley and the bracket. That could make for a
> very ugly situation.
>
> Jack Phillips
> NX899JP
> Raleigh, NC
>
> -----Original Message-----
> From: owner-pietenpol-list-server@matronics.com
> [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Ben Charvet
> Sent: Friday, December 18, 2009 10:09 AM
> To: pietenpol-list@matronics.com
> Subject: Pietenpol-List: Control stops/pulley guards
>
>
> I didn't have any stops in my Piet, but I started this thread because
> someone said the FAA inspector wanted to see them...
> I'm not sure they are necessary either, but I don't want to blow my
> inspection for something this easy to correct.
> Anybody want to talk about cable/pulley guards? I dont have any of
> those either (yet) and my Piet is all covered
>
> Ben Charvet
>
>
> Gary Boothe wrote:
>
>>
>> An idea worth pursuing....although I'm not convinced that control stops
>>
> are
>
>> necessary.
>>
>>
>>
>
>
>
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