Today's Message Index:
----------------------
1. 06:54 AM - Cable type/material (Michael Perez)
2. 07:48 AM - Re: Cable type/material (shad bell)
3. 08:07 AM - Re: Cable type/material (Phillips, Jack)
4. 08:26 AM - Re: Cable type/material (Michael Perez)
5. 08:30 AM - Re: Cable type/material (Michael Perez)
6. 10:14 AM - Re: Cable type/material (Jeff Boatright)
7. 10:23 AM - Re: Cable type/material (Gene Rambo)
8. 10:25 AM - Re: Cable type/material (bike.mike@comcast.net)
9. 11:07 AM - mag compass interference (Oscar Zuniga)
10. 11:20 AM - Re: mag compass interference (Phillips, Jack)
11. 11:36 AM - Re: Piet project for a song (Tom Anderson)
12. 11:51 AM - Re: mag compass interference (Gene Rambo)
13. 12:03 PM - Re: mag compass interference (Lloyd Smith)
14. 12:05 PM - mag compass interference (Oscar Zuniga)
15. 01:44 PM - Re: mag compass interference (Lagowski Morrow)
16. 03:50 PM - Re: Wing tip bow (walt)
17. 06:31 PM - Re: Wing tip bow (Gene Rambo)
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 |
|
| Subject: | Cable type/material |
Looking through the archives, I see enough cable posts to confuse me even f
urther. From what I gather, SS should only be used-in "static" conditions
and galvanized in "dynamic" conditions. 1/8" for the bracing and 3/32" for
the controls. My plan is this:
-
1/8" SS 7/7 for wing drag cables
3/32" galv. 7/19 for controls
-
I have not thought through-for the rest of the plane, as I am only workin
g on one wing now. However, since I am buying the cable, I might as well ge
t what I can for the whole plane. Is there a standard for Pietenpol cable;
size, material, strand makeup, and use location? What cable makes the most
sense at what locations? I would think that SS would be used outside the pl
ane more then galv., but that doesn't seem to be the case.
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 |
|
| Subject: | Re: Cable type/material |
Either one is ok, SS or galvanized.- both have been used on certified air
planes, SS is the more perfered on newer production aircraft due to its res
istance to corrosion.- However using SS for the cabane brace wires has th
e bennifit of being non ferrous, and not interfering with your mag compass.
Shad=0A=0A=0A
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: | Cable type/material |
I agree with Shad. I used Stainless throughout on my Pietenpol. Just
make sure it is aircraft grade. Aircraft Grade cable has lubricants
added to allow it to flex without chafing that commercial grade cable
does not.
I used 1 x 19 1/8" stainless for the drag and anti-drag wires, the
cabane (roll) wires, and for the undercarriage bracing wires. I used 7
x 19 3/32" for the control cables and the tail brace wires, as well as
the flying wires between the lift struts. 1 x 19 is the strongest, but
it is a bear to put thimbles on.
Jack Phillips
NX899JP
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of shad
bell
Sent: Thursday, December 18, 2008 10:48 AM
Subject: Re: Pietenpol-List: Cable type/material
Either one is ok, SS or galvanized. both have been used on certified
airplanes, SS is the more perfered on newer production aircraft due to
its resistance to corrosion. However using SS for the cabane brace
wires has the bennifit of being non ferrous, and not interfering with
your mag compass.
Shad
_________________________________________________
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 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 |
|
| Subject: | Re: Cable type/material |
See, that is a great tip...electrical interference...never thought of that.
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: | Cable type/material |
Understood Jack. I was aware of the lube in AC quality cables. A lot of pla
ces call their cable AC grade, but it is not lubed. To be clear, 3/32" is a
GO for the flying struts? Thanks.
-
--- On Thu, 12/18/08, Phillips, Jack <Jack.Phillips@cardinalhealth.com> wro
te:
From: Phillips, Jack <Jack.Phillips@cardinalhealth.com>
Subject: RE: Pietenpol-List: Cable type/material
I agree with Shad.- I used Stainless throughout on my Pietenpol.- Just
make sure it is aircraft grade.- Aircraft Grade cable has lubricants adde
d to allow it to flex without chafing that commercial grade cable does not.
-
I used 1 x 19 1/8=94 stainless for the drag and anti-drag wires, the cabane
(roll) wires, and for the undercarriage bracing wires.- I used 7 x 19
-3/32=94 for the control cables and the tail brace wires, as well as the
flying wires between the lift struts.- 1 x 19 is the strongest, but it is
a bear to put thimbles on.
-
Jack Phillips
NX899JP
-
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-lis
t-server@matronics.com] On Behalf Of shad bell
Sent: Thursday, December 18, 2008 10:48 AM
Subject: Re: Pietenpol-List: Cable type/material
-
Either one is ok, SS or galvanized.- both have been used on certified air
planes, SS is the more perfered on newer production aircraft due to its res
istance to corrosion.- However using SS for the cabane brace wires has th
e bennifit of being non ferrous, and not interfering with your mag compass.
Shad
-
_________________________________________________
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 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 |
|
| Subject: | Re: Cable type/material |
We have this exact problem with out Piet. It's quite a challenge.
Maybe I'll suck it up and replace the cabane braces with ss. Good
idea.
>...planes, SS is the more perfered on newer production aircraft due
>to its resistance to corrosion. However using SS for the cabane
>brace wires has the bennifit of being non ferrous, and not
>interfering with your mag compass.
>Shad
--
---
Jeffrey H. Boatright, Ph.D.
Associate Professor of Ophthalmology
Emory University School of Medicine
Editor-in-Chief
Molecular Vision
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 |
|
| Subject: | Re: Cable type/material |
Another thing to consider is if you plan to wrap and solder the cable
terminals, which is easy, very inexpensive, and more authentic, you
might want to use galvanized instead of stainless.
Gene
----- Original Message -----
From: Michael Perez<mailto:speedbrake@sbcglobal.net>
To: pietenpol-list@matronics.com<mailto:pietenpol-list@matronics.com>
Sent: Thursday, December 18, 2008 9:53 AM
Subject: Pietenpol-List: Cable type/material
Looking through the archives, I see enough cable posts to
confuse me even further. From what I gather, SS should only be used in
"static" conditions and galvanized in "dynamic" conditions. 1/8" for the
bracing and 3/32" for the controls. My plan is this:
1/8" SS 7/7 for wing drag cables
3/32" galv. 7/19 for controls
I have not thought through for the rest of the plane, as I am
only working on one wing now. However, since I am buying the cable, I
might as well get what I can for the whole plane. Is there a standard
for Pietenpol cable; size, material, strand makeup, and use location?
What cable makes the most sense at what locations? I would think that SS
would be used outside the plane more then galv., but that doesn't seem
to be the case.
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
http://www.matronics.com/contribution<about:blank3D"http://www.matronics.
com/contribution">
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
http://www.matronics.com/Navigator?Pietenpol-List<about:blank3D"http://ww
w.matronics.com/Navigator?Pietenpol-List">
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
http://forums.matronics.com<about:blank3D"http://forums.matronics.com">
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
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: | Re: Cable type/material |
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: | mag compass interference |
As I mentioned in an earlier post, my compass swings noticeably when I move the
steel tube
control stick forward and aft, particularly as the stick goes forward from the
neutral
position. A hardwood control stick would not introduce this effect. I have never
considered
the cabane braces to be a factor, assuming that Corky probably swung that error
out of
the compass when he set up the deviation card.
I have never found the mag compass on 41CC to be a problem to use, despite its
limitations
and mine. Like a Tahitian dancer, it jiggles and sways as we fly along but we
always have
a general idea of where we're going. When I turn the airplane, the compass does
its turn
and dip error things and I don't bother with trying to turn to a specific heading
because
roads and fences are much better for that purpose and they don't jiggle, dip, bob,
and
overshoot. I have never flown with a GPS or NAV in the airplane and have never
been
more than slightly lost.
'Course then again, I've never flown the airplane more than about 75 miles in the
same
direction anyway, so there hasn't been a need to hold any certain heading for more
than
an hour or so. Looking at the compass in the airplane though, I notice that I
should probably
refinish the face and service the fluid. Might as well swing the compass again,
too, since a
number of things have changed on the airplane and the deviation card is all but
unreadable.
I think I'll try to get a little bit lost again this weekend, if this fog lifts
by then.
Oscar Zuniga
Air Camper NX41CC
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
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 |
|
| Subject: | mag compass interference |
That's why Waco Biplanes used wooden joysticks. It's really not a
problem as long as you remember to hold the stick at the "neutral"
position while swinging the compass. Anytime the stick is not at
neutral in flight, the compass is going to be spinning anyway.
By stirring the stick around like I was stirring a pot, I can make my
compass do a complete circle.
Incidentally, I have compasses in both cockpits and on a long trip I
find that I tend to use the one in the front cockpit much more than the
one in the rear. I can see it easier without having to duck my head.
Jack Phillips
NX899JP
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Oscar
Zuniga
Sent: Thursday, December 18, 2008 2:06 PM
Subject: Pietenpol-List: mag compass interference
<taildrags@hotmail.com>
As I mentioned in an earlier post, my compass swings noticeably when I
move the steel tube
control stick forward and aft, particularly as the stick goes forward
from the neutral
position. A hardwood control stick would not introduce this effect. I
have never considered
the cabane braces to be a factor, assuming that Corky probably swung
that error out of
the compass when he set up the deviation card.
I have never found the mag compass on 41CC to be a problem to use,
despite its limitations
and mine. Like a Tahitian dancer, it jiggles and sways as we fly along
but we always have
a general idea of where we're going. When I turn the airplane, the
compass does its turn
and dip error things and I don't bother with trying to turn to a
specific heading because
roads and fences are much better for that purpose and they don't jiggle,
dip, bob, and
overshoot. I have never flown with a GPS or NAV in the airplane and
have never been
more than slightly lost.
'Course then again, I've never flown the airplane more than about 75
miles in the same
direction anyway, so there hasn't been a need to hold any certain
heading for more than
an hour or so. Looking at the compass in the airplane though, I notice
that I should probably
refinish the face and service the fluid. Might as well swing the
compass again, too, since a
number of things have changed on the airplane and the deviation card is
all but unreadable.
I think I'll try to get a little bit lost again this weekend, if this
fog lifts by then.
Oscar Zuniga
Air Camper NX41CC
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
_________________________________________________
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 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: Piet project for a song |
I can sing! :D
Is it the std. or long fuselage version?
--------
Location: Wilson, NC
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=220006#220006
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: mag compass interference |
Jack:
I am not sure that is "why" Waco used wooden sticks, lots of others did
too (Jenny, etc), but just as many did not (Travel Air, etc). It got a
friend of mine killed in a Waco when the stick broke off. If the stick
is affecting the compass, one could always get it de-magnetized. The
effect of something like the roll wires can be adjusted out with the
compensators, because they are not moving, as you pointed out, like the
stick.
Gene
----- Original Message -----
From: Phillips, Jack<mailto:Jack.Phillips@cardinalhealth.com>
To: pietenpol-list@matronics.com<mailto:pietenpol-list@matronics.com>
Sent: Thursday, December 18, 2008 2:19 PM
Subject: RE: Pietenpol-List: mag compass interference
That's why Waco Biplanes used wooden joysticks. It's really not a
problem as long as you remember to hold the stick at the "neutral"
position while swinging the compass. Anytime the stick is not at
neutral in flight, the compass is going to be spinning anyway.
By stirring the stick around like I was stirring a pot, I can make my
compass do a complete circle.
Incidentally, I have compasses in both cockpits and on a long trip I
find that I tend to use the one in the front cockpit much more than
the
one in the rear. I can see it easier without having to duck my head.
Jack Phillips
NX899JP
-----Original Message-----
From:
owner-pietenpol-list-server@matronics.com<mailto:owner-pietenpol-list-ser
ver@matronics.com>
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Oscar
Zuniga
Sent: Thursday, December 18, 2008 2:06 PM
To: Pietenpol List
Subject: Pietenpol-List: mag compass interference
<taildrags@hotmail.com<mailto:taildrags@hotmail.com>>
As I mentioned in an earlier post, my compass swings noticeably when I
move the steel tube
control stick forward and aft, particularly as the stick goes forward
from the neutral
position. A hardwood control stick would not introduce this effect.
I
have never considered
the cabane braces to be a factor, assuming that Corky probably swung
that error out of
the compass when he set up the deviation card.
I have never found the mag compass on 41CC to be a problem to use,
despite its limitations
and mine. Like a Tahitian dancer, it jiggles and sways as we fly
along
but we always have
a general idea of where we're going. When I turn the airplane, the
compass does its turn
and dip error things and I don't bother with trying to turn to a
specific heading because
roads and fences are much better for that purpose and they don't
jiggle,
dip, bob, and
overshoot. I have never flown with a GPS or NAV in the airplane and
have never been
more than slightly lost.
'Course then again, I've never flown the airplane more than about 75
miles in the same
direction anyway, so there hasn't been a need to hold any certain
heading for more than
an hour or so. Looking at the compass in the airplane though, I
notice
that I should probably
refinish the face and service the fluid. Might as well swing the
compass again, too, since a
number of things have changed on the airplane and the deviation card
is
all but unreadable.
I think I'll try to get a little bit lost again this weekend, if this
fog lifts by then.
Oscar Zuniga
Air Camper NX41CC
San Antonio, TX
mailto: taildrags@hotmail.com<mailto:taildrags@hotmail.com>
website at http://www.flysquirrel.net<http://www.flysquirrel.net/>
_________________________________________________
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
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: mag compass interference |
Now that's a wallpaper shot for the computer! How are things going at the
lake?
On Thu, Dec 18, 2008 at 2:19 PM, Phillips, Jack <
Jack.Phillips@cardinalhealth.com> wrote:
> That's why Waco Biplanes used wooden joysticks. It's really not a
> problem as long as you remember to hold the stick at the "neutral"
> position while swinging the compass. Anytime the stick is not at
> neutral in flight, the compass is going to be spinning anyway.
>
> By stirring the stick around like I was stirring a pot, I can make my
> compass do a complete circle.
>
> Incidentally, I have compasses in both cockpits and on a long trip I
> find that I tend to use the one in the front cockpit much more than the
> one in the rear. I can see it easier without having to duck my head.
>
> Jack Phillips
> NX899JP
>
> -----Original Message-----
> From: owner-pietenpol-list-server@matronics.com
> [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Oscar
> Zuniga
> Sent: Thursday, December 18, 2008 2:06 PM
> To: Pietenpol List
> Subject: Pietenpol-List: mag compass interference
>
> <taildrags@hotmail.com>
>
>
> As I mentioned in an earlier post, my compass swings noticeably when I
> move the steel tube
> control stick forward and aft, particularly as the stick goes forward
> from the neutral
> position. A hardwood control stick would not introduce this effect. I
> have never considered
> the cabane braces to be a factor, assuming that Corky probably swung
> that error out of
> the compass when he set up the deviation card.
>
> I have never found the mag compass on 41CC to be a problem to use,
> despite its limitations
> and mine. Like a Tahitian dancer, it jiggles and sways as we fly along
> but we always have
> a general idea of where we're going. When I turn the airplane, the
> compass does its turn
> and dip error things and I don't bother with trying to turn to a
> specific heading because
> roads and fences are much better for that purpose and they don't jiggle,
> dip, bob, and
> overshoot. I have never flown with a GPS or NAV in the airplane and
> have never been
> more than slightly lost.
>
> 'Course then again, I've never flown the airplane more than about 75
> miles in the same
> direction anyway, so there hasn't been a need to hold any certain
> heading for more than
> an hour or so. Looking at the compass in the airplane though, I notice
> that I should probably
> refinish the face and service the fluid. Might as well swing the
> compass again, too, since a
> number of things have changed on the airplane and the deviation card is
> all but unreadable.
>
> I think I'll try to get a little bit lost again this weekend, if this
> fog lifts by then.
>
> Oscar Zuniga
> Air Camper NX41CC
> San Antonio, TX
> mailto: taildrags@hotmail.com
> website at http://www.flysquirrel.net
>
>
> _________________________________________________
>
> 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
>
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: | mag compass interference |
Jack, you just reminded me that I had thought about putting a "civilian" compass
up front for the very reasons you mention. I think I'll see if I can find an old
nautical one with brass trim, on a gimbal ;o) Better yet, maybe hung from the
underside of the wing centersection. The bigger, the better... I'm getting
to be "old weak-eyes".
Oscar Zuniga
Air Camper NX41CC
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
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 |
|
| Subject: | Re: mag compass interference |
I used aluminum tubing for the control sticks and connecting tubing, and
aluminum for all control horns and metal parts inside the wings and
fuselage. Exposed stuff was painted. No rust inside and no magnetic effects.
All cable is stainless steel.--Jim Lagowski
Do not archive
----- Original Message -----
From: "Oscar Zuniga" <taildrags@hotmail.com>
Sent: Thursday, December 18, 2008 3:05 PM
Subject: Pietenpol-List: mag compass interference
>
>
> Jack, you just reminded me that I had thought about putting a "civilian"
> compass
> up front for the very reasons you mention. I think I'll see if I can find
> an old
> nautical one with brass trim, on a gimbal ;o) Better yet, maybe hung from
> the
> underside of the wing centersection. The bigger, the better... I'm
> getting
> to be "old weak-eyes".
>
> Oscar Zuniga
> Air Camper NX41CC
> San Antonio, TX
> mailto: taildrags@hotmail.com
> website at http://www.flysquirrel.net
>
>
--------------------------------------------------------------------------------
Checked by AVG - http://www.avg.com
10:16 AM
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: | Re: Wing tip bow |
My gut feeling would be that , since the further out toward the end of
the wing you go, the more subtle things affect the flying, I would
assume the tip also "flies".
Think that I read somewhere , an article about how the wingtip is alot
more than just looking good.
What if you build another wingtip and when you test fly it, on a power
off stall, it's almost unrecoverable?? Then what do you do?
My Piet built to plans stalled wery nicely at 37MPH indicated.
The curved tip is a snap to make
walt evans
NX140DL
----- Original Message -----
From: Michael Perez
To: pietenpol-list@matronics.com
Sent: Wednesday, December 17, 2008 10:59 AM
Subject: Pietenpol-List: Wing tip bow
I am curious as to what function a curved wing tip serves. I
wonder why I can't put a flat tip on with no curve. Thanks.
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
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: Wing tip bow |
The wingtip accounts for a large percentage of the drag of the wing, as
the higher pressure air on the bottom tries to get to the top by going
around the tip rather than all the way to the trailing edge. Anything
you can do to change the shape of the tip to reduce the drag is to your
advantage. On a Piet, that may not matter that much because it is such
a draggy airplane, but it reduces the effective lifting area around the
tip. That is why jets have winglets. They use the airflow coming
around the tip across another airfoil (the winglet) to produce
additional lift in a forward direction, i.e. additional thrust. Anyway,
everything from ath Cub, Piet, etc, which need all the advantage they
can get, have shaped wingtips to reduce drag.
Gene
(now the engineers can give exact numbers)
----- Original Message -----
From: walt<mailto:waltdak@verizon.net>
To: pietenpol-list@matronics.com<mailto:pietenpol-list@matronics.com>
Sent: Thursday, December 18, 2008 6:49 PM
Subject: Re: Pietenpol-List: Wing tip bow
My gut feeling would be that , since the further out toward the end of
the wing you go, the more subtle things affect the flying, I would
assume the tip also "flies".
Think that I read somewhere , an article about how the wingtip is alot
more than just looking good.
What if you build another wingtip and when you test fly it, on a power
off stall, it's almost unrecoverable?? Then what do you do?
My Piet built to plans stalled wery nicely at 37MPH indicated.
The curved tip is a snap to make
walt evans
NX140DL
----- Original Message -----
From: Michael Perez<mailto:speedbrake@sbcglobal.net>
To:
pietenpol-list@matronics.com<mailto:pietenpol-list@matronics.com>
Sent: Wednesday, December 17, 2008 10:59 AM
Subject: Pietenpol-List: Wing tip bow
I am curious as to what function a curved wing tip serves. I
wonder why I can't put a flat tip on with no curve. Thanks.
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
href='3D"http://www.matronics.com/contribution"'>http://www.matronics.c
om/contribution
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
href='3D"http://www.matronics.com/Navigator?Pietenpol-List"'>http://www
.matronics.com/Navigator?Pietenpol-List
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
href='3D"http://forums.matronics.com"'>http://forums.matronics.com
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
http://www.matronics.com/Navigator?Pietenpol-List<http://www.matronics.co
m/Navigator?Pietenpol-List>
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! --
|