Today's Message Index:
----------------------
1. 04:40 AM - Re: Cool propeller shapes- how to make brass tipping (helspersew@aol.com)
2. 05:49 AM - Re: New to site (A&PBuggy)
3. 07:12 AM - Re: Cool propeller shapes- how to make brass tipping (Steve Ruse)
4. 07:13 AM - Re: Cool propeller shapes- how to make brass tipping (Steve Ruse)
5. 08:01 AM - Re: Cool propeller shapes- how to make brass tipping (Owen Davies)
6. 08:25 AM - Re: Cool propeller shapes- how to make brass tipping (Gary Boothe)
7. 11:23 AM - aileron cables (Douwe Blumberg)
8. 12:44 PM - Re: aileron cables (Jack Phillips)
9. 12:44 PM - Cool propeller shapes- how to make brass tipping (santiago morete)
10. 12:53 PM - Re: aileron cables (Gene Rambo)
11. 03:24 PM - Re: aileron cables (airlion)
12. 03:45 PM - Re: aileron cables (Gary Boothe)
13. 03:48 PM - Re: aileron cables (Jack Phillips)
14. 05:30 PM - Re: aileron cables (Jack)
Message 1
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| Subject: | Re: Cool propeller shapes- how to make brass tipping |
Santiago,
As you know I have a prop that is very curvy in all directions. The idea
that I came up with I think will work but is very complicated. Make a box
, open at the top, about the length of 1/2 the propeller. fill with wet co
ncrete (or plaster) and then push the leading edge down into the wet mixtu
re (protected by polyethylene sheet) and let dry. After curing remove prop
and then pre-cut brass. Push and form brass down into cured concrete mold
to take on the shape of the prop. Complicated but I may try it at some po
int.
With all the many thousands of these props out there, it must be easier th
an all this.
Dan Helsper
Poplar Grove, IL.
Message 2
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I know Dave well, He gave me the plans I have. I have not seen his finished plane,
might have to take a ride and check it out!!
--------
never enough hours in the day.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282052#282052
Message 3
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| Subject: | Re: Cool propeller shapes- how to make brass tipping |
Dan,
I found this via google, it might be of a little help. Might be worth
trying to find Jesse Sims, he might give you some tips:
http://www.airspacemag.com/how-things-work/good_wood.html?c=y&page=5
The master carvers move perfectly balanced props on to have the
leading edge tipping applied: stainless steel and brass work that
conforms to the twisting curve of the leading edge so closely and
finely as to be barely palpable. Jesse Sims, who fabricates and
fastens the sheet metal tipping, adds as much as 12 ounces of brass or
stainless steel sheet metal plus the weight of as many as a hundred
screws and rivets. He makes the sheets into trough-shaped pieces that
wrap the edge for an inch and a half, then he clamps the metal onto
the prop, adjusting a bungee cord so that it doesn?t cover the holes
he had earlier drilled for the screws and rivets that fasten the metal
to the wood. Using a torch and solder, he drips molten lead into the
bugled depressions in the edge, which he will then grind and polish
until he achieves a fine sheen.
?The paint booth boys can change the balance with an extra coat of
paint here and there, but these props have to be within a couple grams
of perfect when I?m done,? Sims says.
Quoting helspersew@aol.com:
>
>
> Santiago,
>
> As you know I have a prop that is very curvy in all directions. The
> idea that I came up with I think will work but is very complicated.
> Make a box, open at the top, about the length of 1/2 the propeller.
> fill with wet concrete (or plaster) and then push the leading edge
> down into the wet mixture (protected by polyethylene sheet) and let
> dry. After curing remove prop and then pre-cut brass. Push and form
> brass down into cured concrete mold to take on the shape of the
> prop. Complicated but I may try it at some point.
>
> With all the many thousands of these props out there, it must be
> easier than all this.
>
> Dan Helsper
> Poplar Grove, IL.
>
>
Message 4
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| Subject: | Re: Cool propeller shapes- how to make brass tipping |
Dan,
A guy named Mike Redpath owns a small propeller shop at Paradise
Airport south of Oklahoma City. I've seen some antique propellers
with metal leading edges that he made and they looked good. The last
one I saw was a big prop that cost over $2k, he was sending it to
someone to hang on their wall. He'd probably be willing to give you a
brief rundown of his process over the phone. Just share it with us
when you get it!
Mike Redpath - 405-414-1072
Steve Ruse
Norman, OK
Quoting helspersew@aol.com:
> Santiago,
>
> As you know I have a prop that is very curvy in all directions. The
> idea that I came up with I think will work but is very complicated.
> Make a box, open at the top, about the length of 1/2 the propeller.
> fill with wet concrete (or plaster) and then push the leading edge
> down into the wet mixture (protected by polyethylene sheet) and let
> dry. After curing remove prop and then pre-cut brass. Push and form
> brass down into cured concrete mold to take on the shape of the
> prop. Complicated but I may try it at some point.
>
> With all the many thousands of these props out there, it must be
> easier than all this.
>
> Dan Helsper
> Poplar Grove, IL.
>
>
Message 5
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| Subject: | Re: Cool propeller shapes- how to make brass tipping |
On 1/18/2010 7:26 AM, helspersew@aol.com wrote:
> As you know I have a prop that is very curvy in all directions. The
> idea that I came up with I think will work but is very complicated.
> Make a box, open at the top, about the length of 1/2 the propeller.
> fill with wet concrete (or plaster) and then push the leading edge
> down into the wet mixture (protected by polyethylene sheet) and let
> dry. After curing remove prop and then pre-cut brass. Push and form
> brass down into cured concrete mold to take on the shape of the prop.
> Complicated but I may try it at some point.
>
Sounds workable, but I wonder what kind of finish you will get off a
concrete mold. Is there anything that will smooth out the concrete so
you won't have to cope with massive irregularities from the sand, etc?
Owen
Message 6
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| Subject: | Cool propeller shapes- how to make brass tipping |
Casting plaster would be the best to use.no aggregate. Still not sure if it
would scratch copper or brass, but definitely worth a try.
Gary Boothe
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Owen Davies
Sent: Monday, January 18, 2010 8:02 AM
Subject: Re: Pietenpol-List: Cool propeller shapes- how to make brass
tipping
On 1/18/2010 7:26 AM, helspersew@aol.com wrote:
As you know I have a prop that is very curvy in all directions. The idea
that I came up with I think will work but is very complicated. Make a box,
open at the top, about the length of 1/2 the propeller. fill with wet
concrete (or plaster) and then push the leading edge down into the wet
mixture (protected by polyethylene sheet) and let dry. After curing remove
prop and then pre-cut brass. Push and form brass down into cured concrete
mold to take on the shape of the prop. Complicated but I may try it at some
point.
Sounds workable, but I wonder what kind of finish you will get off a
concrete mold. Is there anything that will smooth out the concrete so you
won't have to cope with massive irregularities from the sand, etc?
Owen
Message 7
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Where my aileron cables cross in front of the stick, they rub a little. Did you
guys offset them somehow or wrap one with something to protect them?
Douwe
Message 8
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I had the same problem Douwe. Congratulations! This just shows that your
aileron horns are square with the torque tube (if they are square, the
cables can't help but hit each other).
Problem was solved by judicious application of a hammer to one side of the
aileron horn on the torque tube. Just bend one of the horns (or both, but
in opposite directions) enough to give some clearance between the cables.
Depending on your enthusiasm with the hammer, you might have to enlarge the
holes where they pass through the plywood under the instrument panel to
maintain clearance.
Jack Phillips
NX899JP
Rakeigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Blumberg
Sent: Monday, January 18, 2010 2:20 PM
Subject: Pietenpol-List: aileron cables
<douweblumberg@earthlink.net>
Where my aileron cables cross in front of the stick, they rub a little. Did
you guys offset them somehow or wrap one with something to protect them?
Douwe
Message 9
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| Subject: | Cool propeller shapes- how to make brass tipping |
Dan,
-
Maybe-the easiest way is as shown in the photos, but if you don't like ho
w that looks, I think you can make those "ears" close enough to each other
and braze the gaps. The brazing will be invisible after sanding and polishi
ng.-
I made a magneto switch using a brass sheet, cutting, forming and brazing a
nd is not really hard to form.--
Saludos
-
Santiago=0A=0A=0A Yahoo! Cocina=0A=0AEncontra las mejores recetas con
Yahoo! Cocina.=0A=0A=0Ahttp://ar.mujer.yahoo.com/cocina/
Message 10
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| Subject: | Re: aileron cables |
I'd just bend one of the tabs a little bit so they miss.
Gene
do not archive
----- Original Message -----
From: Douwe Blumberg<mailto:douweblumberg@earthlink.net>
To: pietenpolgroup<mailto:pietenpol-list@matronics.com>
Sent: Monday, January 18, 2010 2:20 PM
Subject: Pietenpol-List: aileron cables
<douweblumberg@earthlink.net<mailto:douweblumberg@earthlink.net>>
Where my aileron cables cross in front of the stick, they rub a
little. Did you guys offset them somehow or wrap one with something to
protect them?
Douwe
http://www.matronics.com/Navigator?Pietenpol-List<http://www.matronics.co
m/Navigator?Pietenpol-List>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
Message 11
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| Subject: | Re: aileron cables |
Jack, I just did that fix for my aileron cables as we speak and got good clearance.
I just had my inspection last friday and passed the first go around. I can
now fly when I get my nerve up. Cheers, Gardiner Mason
----- Original Message ----
From: Jack Phillips <pietflyr@bellsouth.net>
Sent: Mon, January 18, 2010 3:40:49 PM
Subject: RE: Pietenpol-List: aileron cables
I had the same problem Douwe. Congratulations! This just shows that your
aileron horns are square with the torque tube (if they are square, the
cables can't help but hit each other).
Problem was solved by judicious application of a hammer to one side of the
aileron horn on the torque tube. Just bend one of the horns (or both, but
in opposite directions) enough to give some clearance between the cables.
Depending on your enthusiasm with the hammer, you might have to enlarge the
holes where they pass through the plywood under the instrument panel to
maintain clearance.
Jack Phillips
NX899JP
Rakeigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Blumberg
Sent: Monday, January 18, 2010 2:20 PM
Subject: Pietenpol-List: aileron cables
<douweblumberg@earthlink.net>
Where my aileron cables cross in front of the stick, they rub a little. Did
you guys offset them somehow or wrap one with something to protect them?
Douwe
Message 12
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Congratulations, Gardiner! I was told you have A LOT of nerve....
Gary Boothe
Cool, CA
Pietenpol
WW Corvair Conversion
Tail done, Fuselage on gear
16 ribs done
Do not archive
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of airlion
Sent: Monday, January 18, 2010 3:21 PM
Subject: Re: Pietenpol-List: aileron cables
Jack, I just did that fix for my aileron cables as we speak and got good
clearance. I just had my inspection last friday and passed the first go
around. I can now fly when I get my nerve up. Cheers, Gardiner Mason
----- Original Message ----
From: Jack Phillips <pietflyr@bellsouth.net>
Sent: Mon, January 18, 2010 3:40:49 PM
Subject: RE: Pietenpol-List: aileron cables
<pietflyr@bellsouth.net>
I had the same problem Douwe. Congratulations! This just shows that your
aileron horns are square with the torque tube (if they are square, the
cables can't help but hit each other).
Problem was solved by judicious application of a hammer to one side of the
aileron horn on the torque tube. Just bend one of the horns (or both, but
in opposite directions) enough to give some clearance between the cables.
Depending on your enthusiasm with the hammer, you might have to enlarge the
holes where they pass through the plywood under the instrument panel to
maintain clearance.
Jack Phillips
NX899JP
Rakeigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Blumberg
Sent: Monday, January 18, 2010 2:20 PM
Subject: Pietenpol-List: aileron cables
<douweblumberg@earthlink.net>
Where my aileron cables cross in front of the stick, they rub a little. Did
you guys offset them somehow or wrap one with something to protect them?
Douwe
Message 13
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Cool, Gardiner! Go for it and send pictures! Then fly off the hours so you
can take it to Sun 'n' Fun.
Jack Phillips
NX899JP
Raleigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of airlion
Sent: Monday, January 18, 2010 6:21 PM
Subject: Re: Pietenpol-List: aileron cables
Jack, I just did that fix for my aileron cables as we speak and got good
clearance. I just had my inspection last friday and passed the first go
around. I can now fly when I get my nerve up. Cheers, Gardiner Mason
----- Original Message ----
From: Jack Phillips <pietflyr@bellsouth.net>
Sent: Mon, January 18, 2010 3:40:49 PM
Subject: RE: Pietenpol-List: aileron cables
<pietflyr@bellsouth.net>
I had the same problem Douwe. Congratulations! This just shows that your
aileron horns are square with the torque tube (if they are square, the
cables can't help but hit each other).
Problem was solved by judicious application of a hammer to one side of the
aileron horn on the torque tube. Just bend one of the horns (or both, but
in opposite directions) enough to give some clearance between the cables.
Depending on your enthusiasm with the hammer, you might have to enlarge the
holes where they pass through the plywood under the instrument panel to
maintain clearance.
Jack Phillips
NX899JP
Rakeigh, NC
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Blumberg
Sent: Monday, January 18, 2010 2:20 PM
Subject: Pietenpol-List: aileron cables
<douweblumberg@earthlink.net>
Where my aileron cables cross in front of the stick, they rub a little. Did
you guys offset them somehow or wrap one with something to protect them?
Douwe
Message 14
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Thanks Jack and Douwe, I'm just getting ready to weld mine. Will plan to
offset a bit.
Jack
DSM
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