Today's Message Index:
----------------------
1. 06:49 AM - Firewall Edge Strip (Norm Beauchamp)
2. 12:31 PM - Re: which weld (AMuller589@aol.com)
3. 03:27 PM - Hinge Pin Staking (Greaves)
4. 04:04 PM - Re: Hinge Pin Staking (Vic Baker)
5. 05:39 PM - Re: Re: Hinge Pin Staking (Lowell Fitt)
6. 06:28 PM - Re: engine mount steel bushing (Brett Walmsley)
Message 1
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| Subject: | Firewall Edge Strip |
--> Kitfox-List message posted by: Norm Beauchamp <nebchmp@wcc.net>
Sometime near the end of Dec. there was a small discussion about a
firewall edge seal. I finally got around to ordering some samples from
JC Whitney, and eventually ordering what is called Push-On
Weatherstrip. In the catalog I have its on page 87, and the part number
is 132565. It sells in only 25 ft. rolls at $29.99. I used 7 ft. With
little adjustment it fit my firewall very well. If anyone is interested
I have 18 ft. left and will sell it all for $20. plus shipping. Or I'll
sell 9 ft. for $10 bucks plus shipping. I'm also waiting for a shipment
of a seal that I think will fit onto the top edge of the cowl that fits
against the windscreen. In the same catalog and on the same page its
part number 812914. Just for drill I tried the burn test on the
original seal and the JCW seal. They both burn.
Later. Norm.
Message 2
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--> Kitfox-List message posted by: AMuller589@aol.com
Your questions lead me to believe you need to look at the welding techniques
and methods of splicing specified in aircraft circular AC 65-15A. This is
the AIRFRAME AND POWERPLANT MECHANICS AIRFRAME HANDBOOK, esp pages 276, and
figures 6-38, 6-39, 6-40, 6-41 et al for spice joints and pages 269 plus for
welding techniques. There have also been several articles on the advantages and
annealing techniques for the TIG, MIG, and gas welding of aircraft tubing in
Sport Aviation and Kitplanes.. Basically what these said AS I RECALL Generally
they recommend post weld annealing with gas for welds made using gas and TIG
since the heat is less concentrated than MIG. Even the articles in Kitplane
and Sport Aviation have some arguments pro and con on the annealing process
so I would anneal with gas if it were me. According to AC-65 you should use
internal splicing if you need to avoid bulges where surface smoothness is a
factor (i.e. under fabric).AC 65-15 and Kitplane and Sport Aviation address
all welding techniques. WORD OF MOUTH has it that NASA recently adapted a
welding policy that requires "coat hangar" type welding rod with more generous
beads than before for aircraft and spacecraft tubing, and post weld annealing.
Annealing is much higher temperatures than you seem to think. Stress relief
as quoted from the LINCOLN welding manual is"The stress relief range for most
carbon steel is 1100 to 1200 deg F and the soaking time is usually one hour
per inch of thickness.", These are not difficult procedures and are probably
what you intended but should relieve your mind of all doubts. Splicing Tubing
by Inner Sleeve Method should be used
If the damage to a structural tube is such that a
partial replacement of the tube is necessary, the
inner sleeve splice shown in figure 6-41 is recommended,
especially where a smooth tube surface is
desired. A diagonal cut is made to remove the damaged
portion of the tube, and the burrs are removed
from the edges of the cut by filing or similar means.
A replacement steel tube of the same material and
diameter, and at least the same wall thickness is
then cut to match the length of the removed portion
of the damaged tube. At each end of the replace.
ment tube a l/s-in. gap should be allowed from the
diagonal cuts to the stubs of the original tube.
A length of steel tubing should next be selecteddiameter equal to the inside
diameter of the damaged
tube. This inner tube material should be fitted
snugly within the original tube. Cut two sections of
tubing from this inner-sleeve tube material, each of
such a length that the ends of the inner sleeve will
be a minimum distance of one and one-half tube
diameters from the near-t end of the diagonal cut.
If the inner sleeve fits very tightly in the replacement
tube, the sleeve can be chilled with dry ice or
in cold water. If this procedure is inadequate, the
diameter of the sleeve can be polished down with
emery cloth. The inner sleeve can be welded to the
tube stubs through the +&in. gap, forming a weld
bead over the gap.
of at least the same wall thickness and of an outside
Message 3
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| Subject: | Hinge Pin Staking |
--> Kitfox-List message posted by: "Greaves" <tenorio41@comcast.net>
What the best method for staking the pins in my elevator trim hinges?
Message 4
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| Subject: | Re: Hinge Pin Staking |
--> Kitfox-List message posted by: "Vic Baker" <vr_baker@nvbell.net>
Just don't do what my neighbor advised me to do and try to stake them with a punch.
I made a mess of mine. Ed Downs of Skystar advised just making a 90 degree
bend at each hinge pin end. Maybe John McBean will give us an input here.
--------
Vic Baker
Series 7
Carson City, Nevada
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=11333#11333
Message 5
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| Subject: | Re: Hinge Pin Staking |
--> Kitfox-List message posted by: "Lowell Fitt" <lcfitt@sbcglobal.net>
Assuming you are not going to remove the pins for inspections etc. A
recommended method at Lancair is to cut the pin a little short. Insert it
so it is short on both ends in the hinge and then just tap the end a bit
with a hammer to creat a crimp.
Lowell
----- Original Message -----
From: "Vic Baker" <vr_baker@nvbell.net>
Sent: Friday, February 10, 2006 4:02 PM
Subject: Kitfox-List: Re: Hinge Pin Staking
> --> Kitfox-List message posted by: "Vic Baker" <vr_baker@nvbell.net>
>
> Just don't do what my neighbor advised me to do and try to stake them with
> a punch. I made a mess of mine. Ed Downs of Skystar advised just making
> a 90 degree bend at each hinge pin end. Maybe John McBean will give us an
> input here.
>
> --------
> Vic Baker
> Series 7
> Carson City, Nevada
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=11333#11333
>
>
>
Message 6
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| Subject: | Re: engine mount steel bushing |
--> Kitfox-List message posted by: "Brett Walmsley" <n93hj@numail.org>
Thanks Jim.
I will do that.
----- Original Message -----
From: "James Shumaker" <jimshumaker@sbcglobal.net>
Sent: Friday, February 10, 2006 1:00 AM
Subject: Re: Kitfox-List: engine mount steel bushing
> --> Kitfox-List message posted by: James Shumaker
> <jimshumaker@sbcglobal.net>
>
> Yes, shortening the steel bushing tightens the engine to the frame. The
> new dimension is 0.92".
>
> Jim Shumaker
>
> Brett Walmsley <n93hj@numail.org> wrote:
> --> Kitfox-List message posted by: "Brett Walmsley"
>
> I seem to recall a procedure to shorten the steeel bushing in the engine
> mount to affectivly tighten the engine mount bushings more. Anyone else
> remember this? Was it a service bulletin? or letter?.
> Brett
>
>
>
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