Today's Message Index:
----------------------
1. 10:36 AM - Re: carb (Gary Gower)
2. 11:36 AM - covering good news and bad news (Oscar Zuniga)
3. 11:39 AM - carb (Oscar Zuniga)
4. 02:20 PM - Re: Re: cable vibration--tailsection ()
5. 10:14 PM - Re: carb (Gary Gower)
Message 1
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Hi Dick,
Our Instructor (and Airfield Commander) is also a bush pilot in missionary flights
to the Sierra.
He has a C 180 and and a 220 HP Stintson, both planes have installed "the spring"
because most (if not all) of the strips are no second chance up there. Both
planes are kept in pristine condition always, sometimes I have the chance
to help working in his airplanes.
I dont know what carburator they have...
Saludos
Gary Gower.
Dick Navratil <horzpool@goldengate.net> wrote:
Has anyone installed a spring on the Stromberg carb to bring it to full
open in case of a linkage failure in flight? I went out flying today, using
a runway with no good emergency landing spots on the departure end. Sitting
around the hangar chatting later, that subject came up and it sounded like a
good idea.
Dick N.
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Message 2
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| Subject: | covering good news and bad news |
--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
Rick; it makes good sense to use only the iron recommended by Stits (Poly
Fiber) for covering, if you're using the Poly Fiber process. Two reasons...
one is accurate control of temperature, the other is even temperatures
across the face of the iron. A third reason might be "enough power", to
keep the iron at the right temperature while you're covering a large area.
It's very important to use the exact temperatures spelled out in the manual.
Besides, the iron they recommend only costs $30 or so. It happened that
my wife uses one of the recommended irons and I was able to use hers for the
large areas when I recovered my vertical stabilizer, then I bought one of
the small irons from Wicks to use for corners and for heat-smoothing. It's
been very valuable for the small repair patches I've had to do on 41CC as
well. I calibrated it, made marks on the dial, and it works great.
Both my wife's iron and the smaller one that I bought have the "ironstone"
type non-stick coating on them so they don't get messed up with the covering
materials.
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
Message 3
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--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
Dick asks-
>Has anyone installed a spring on the Stromberg carb to bring it
>to full open in case of a linkage failure in flight?
No, but I've thought about it. The way my controls are set up, it would
take a very stout spring to do that (figuring on worst case for a failure,
at the pilot's throttle control end, the spring having to overcome the
friction of the entire control string from end to end). I thought about
some type of circular spring around the throttle shaft pivot as is used in
some hedge clippers, but the easiest would be a regular coil spring. The
problem becomes that the friction on the throttle controls then needs to be
increased to hold a normal power setting against the spring.
When you figure it out, tell me how you did it ;o)
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
Message 4
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| Subject: | Re: cable vibration--tailsection |
--> Pietenpol-List message posted by: <harvey.rule@bell.ca>
I sent pics to your personal address;you can't send pics on this web
site.Enjoy!
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Barry
Davis
Sent: June 2, 2006 1:29 PM
Subject: Re: Pietenpol-List: Re: cable vibration--tailsection
--> Pietenpol-List message posted by: "Barry Davis" <bed@mindspring.com>
Harv
How did you make your rod style braces? What are they made of and what
do
the ends look like?
Barry
----- Original Message -----
From: <harvey.rule@bell.ca>
Sent: Thursday, June 01, 2006 10:48 PM
Subject: RE: Pietenpol-List: Re: cable vibration--tailsection
> --> Pietenpol-List message posted by: <harvey.rule@bell.ca>
>
> Mine are rods not cable and they can be tightened by turning them into
> the rod ends that are threaded.I used a level and a protractor(the
kind
> they sell for stud installation)to set it up as close as I could to a
> right angle of 90 degrees for the vertical stab and horizontal
stab.They
> seem pretty tight.The other cables that cross at the struts are tight
> enough to play a tune on em.Taxi test will commence tomorrow.Should
also
> get wing root covers on if all goes well.All I need after that are
> scoops for air intake and a cover over the rear of the carb heat
> muff.There is one more minor thing but that won't stop me from flyin.I
> need to attach a gas line from the upper wing tank to the lower main
> tank.I will also install a shut off valve as well.There is already a
> tube of aluminum coming out of the lower tank ready for me to connect
up
> to but it's not threaded.I might use one of those new pressure type
> connectors here.Not sure as yet.
>
> -----Original Message-----
> From: owner-pietenpol-list-server@matronics.com
> [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Don
Emch
> Sent: June 1, 2006 5:11 PM
> To: pietenpol-list@matronics.com
> Subject: Pietenpol-List: Re: cable vibration--tailsection
>
> --> Pietenpol-List message posted by: "Don Emch" <EmchAir@aol.com>
>
> Mike...
> I am surprised too to see how many Piets have flying wires that seem
to
> be loose. I don't have any vibration with those. My tail wires don't
> seem to be very bad it's just that they all have about the same
tension
> and if I tighten just one or two it kind of throws off the whole
thing.
> I really don't want to tighten them all because they 'feel' tight
enough
> now, based on others I've felt. If Don Helmick felt it important that
> they have similar tension then I would believe him. He's been around
> the patch a few times with these things! Thanks again Mike.
> Don Emch
> P.S. I moved my plane to York Field which is only a few minutes from
my
> house so I'm not hangering with Frank anymore [Crying or Very sad] .
I
> am going to try to make it over to Barber for the Fly-in this weekend
> though.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=37931#37931
>
>
>
Message 5
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Hello Oscar,
No is not a very strong spring. Just with the force enough to move the thottle
if the cable brakes. The worse friction it needs to pull is if the control
cable brakes in the handle side. This is similar to the force needed to pull
a free cable from a front brake of a mountain bicicle. Just to make yourself
an idea.
The friction needed to overcome the spring is just very little. Sont use a heavier
spring than needed it will only aply unnecesary force and friction to the
buterfly axle...
Here you can find spring shops that will coustom make all type of springs, some
of them the have in shelves, hand pull a hand full and test/try until you
find the correct one... Just a few bucks.
I dont know if there are this type of spring shops in USA, I am sure they can
be found.
Saludos
Gary Gower.
Oscar Zuniga <taildrags@hotmail.com> wrote:
--> Pietenpol-List message posted by: "Oscar Zuniga"
Dick asks-
>Has anyone installed a spring on the Stromberg carb to bring it
>to full open in case of a linkage failure in flight?
No, but I've thought about it. The way my controls are set up, it would
take a very stout spring to do that (figuring on worst case for a failure,
at the pilot's throttle control end, the spring having to overcome the
friction of the entire control string from end to end). I thought about
some type of circular spring around the throttle shaft pivot as is used in
some hedge clippers, but the easiest would be a regular coil spring. The
problem becomes that the friction on the throttle controls then needs to be
increased to hold a normal power setting against the spring.
When you figure it out, tell me how you did it ;o)
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
__________________________________________________
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