Today's Message Index:
----------------------
1. 06:03 AM - Re: Recovering from lost propeller blades (Noel Loveys)
2. 07:37 AM - Re: Locktite on spinner bolt. (Randy Daughenbaugh)
3. 07:40 AM - re, lost propeller blades (Barry West)
4. 08:50 AM - Re: Re: IVO IFA Propeller (Clint Bazzill)
5. 10:05 AM - Re: Kitfox 5 Flight tests (Noel Loveys)
6. 10:12 AM - Re: Kitfox 5 Flight tests (RRTRACK@aol.com)
7. 10:42 AM - Re: re, lost propeller blades (Noel Loveys)
8. 11:57 AM - Re: IVO IFA Propeller (kitfoxmike)
9. 01:04 PM - Re: Re: IVO IFA Propeller (Clint Bazzill)
10. 04:24 PM - Re: Locktite on spinner bolt. (Lynn Matteson)
11. 04:46 PM - Re: Need brake pads and caliper for early Kitfox Model II #399 (Mike)
Message 1
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| Subject: | Recovering from lost propeller blades |
Barry:
What is your reduction ratio?
Noel
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Barry West
Sent: Monday, April 16, 2007 10:29 AM
Subject: Kitfox-List: Recovering from lost propeller blades
This is taking a lot more time than I thought. You may remember that in
January I posted emails that all three of my propeller blades departed
my
Kitfox IV Classic with a 912S while in flight. I needed to replace the
propeller, the engine mount and do some repair to the cowling. I
ordered an
IVO prop and it came some time ago. John shipped the new engine mount
last
week and the repairs are done. What I don't have is the drive lugs
needed
to attach the propeller. These are the female threaded lugs that press
into
the flange on the drive shaft. Neither Kitfox Aircraft nor Lockwood
have
been able to get them from Rotax. I wonder if any of you have some you
don't need and would sell them (six) to me. Let me know at
barry@pgtc.com.
Barry West
Message 2
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| Subject: | Locktite on spinner bolt. |
Makes sense!
Thanks Jerry.
Randy
Do not archive.
.
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Jerry Liles
Sent: Monday, April 16, 2007 8:51 PM
Subject: Re: Kitfox-List: Locktite on spinner bolt.
Graphite and aluminum in the presence of water form an electrolytic
cell. The corrosion produced is the same type as is encountered with
aluminum and iron, or iron and zinc, Galvanic with aluminum the looser.
When the first carbon fiber bicycles became available the carbon tubes
were frequently bonded in aluminum brackets where the tubes clustered at
the bottom bracket, head set and rear wheel brackets. There were
numerous, occassionally spectacular failures of these bikes due to
galvanic corrosion.
Jerry Liles
Randy Daughenbaugh wrote:
> Thanks Rick and Kurt.
>
> Something is going on. Wish I understood it better. (And glad I took
> Skystar's advice during build!)
>
> Randy
>
> Do not archive.
>
> .
>
> ------------------------------------------------------------------------
>
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of
> Mdkitfox@aol.com
> Sent: Sunday, April 15, 2007 2:57 PM
> To: kitfox-list@matronics.com
> Subject: Re: Kitfox-List: Locktite on spinner bolt.
>
> In a message dated 4/14/2007 11:48:20 P.M. Eastern Daylight Time,
> rjdaugh@rapidnet.com writes:
>
> Hey, there must be a metallurgist out there. I always thought it
> was that the graphite scratched the oxide surface off of the
> aluminum and left a spot for corrosion. But why would that be
> worse than scratching the oxide off with a scotch brite pad? Cause
> water or salt can displace the graphite? I really don't know.
>
> Or is it just an old wives tale?
>
> Randy,
>
> It's not a wives tale. I was only an aero engineer at Kennedy Space
> Center, not a metallurgist, but I saw a mechanic draw a line with a
> pencil on a piece of aluminum used on the Saturn V. I brought this to
> his attention and he laughed and gave me a rough time since I was just
> out of school and the new kid on the block.
>
> Long story short, for a $5 bet, we put 2 identical pieces of aluminum
> in 2 pull testers. One was scribed with a pencil line the other
> wasn't. During the pull, the piece scribed with the pencil cracked
> right along the drawn line and the other piece did not break. Could it
> have been luck? I don't think so, I had performed that same test in
> college and it did the same thing more than once.
>
> The carbon in the lead or graphite sets up stress corrosion in the
> aluminum and when you place the part under stress it doesn't take long
> for the crack to occur. It will even follow gentle curves. The
> humidity in the air and especially in a salty environment like the
> beach will cause this corrosion to accelerate quickly. Just leave a
> piece of painted chrome molly steel outside for a day and see how
> quickly corrosion attacks it.
>
> Rick
> Series V Speedster - N39RW, Serial Number 1
>
> DO NOT ARCHIVE
>
>
>===================
>
>
Message 3
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| Subject: | re, lost propeller blades |
You guys are great, I received 11 responses so far. I want to respond
to couple of these here.
Noel wanted to know my gearbox ratio. It is 2.43 : 1.
Some of you did not pick up the original email. Rather than me digging
that out you can go to our chapter web site and find the latest
newsletter. I wrote an article describing the event and it is in that
newsletter. The web site is www.eaa732.org.
There was damage to the engine mount and John shipped me a new one last
week but there is a lot to do before I need those lugs and I will answer
some of you individually.
Barry
Message 4
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| Subject: | Re: IVO IFA Propeller |
The IVO is a great prop. It had some problems early on, not serious as I
have owned several. Sold the ground adjustable 68 inch that was on my
912UL. Also used it for about 100 hours on 912ULS. Worked fine except on
some run ups the tips would stall but not in flight. Just a slight
cavitation sound. I bought it (ground adjustable) as IVO was having some
problems with lead screw and I had one that was broken. Seems that they had
some metal problems and they were on back order so I ordered the ground
adjustable unit and used it for my 40 hours of flight test. I have a 72
inch now and it matches the plane very nicely. The worse thing that could
happen would be a complete motor failure, at which time you would fly with
your last pitch setting. It will get you home very nicely or you can remove
the prop. About 5 minutes and manually set for netural position. The plane
will fly with any pitch setting.
I would recomment the 68 inch prop for the 912UL and the 72 inch for the
912ULS. My origional prop was a 70 inch which I cut down.
Call me or contact me off line for more information. Clint
From: "Lowell Fitt" <lcfitt@sbcglobal.net>
Subject: Re: Kitfox-List: Re: IVO IFA Propeller
One of the issues one of the Ivo folks had at Desert Fox infolved the center
of hub brushe set-up. One of the contact rings drifted on the insulated
shaft so it wasn't under the brush.
Lowell
----- Original Message ----- From: "kitfoxmike" <customtrans@qwest.net>
Sent: Monday, April 16, 2007 4:50 PM
Subject: Kitfox-List: Re: IVO IFA Propeller
>
>Ya, forget that setup for the brushes and go for the setup through the
>center of the hub.
>
>--------
>kitfoxmike
>model IV, 1200
>speedster
>912ul
>Do not archive
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=107433#107433
>
>
_________________________________________________________________
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Message 5
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| Subject: | Kitfox 5 Flight tests |
If you guys notice that the ASI will fluctuate a bit in a slip. For
steadier performance of the ASI put a static port on both sides of the
plane, connect them together and "T" in the ASI, ALT and VSI.
Noel
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of
> kurt schrader
> Sent: Monday, April 16, 2007 11:15 PM
> To: kitfox-list@matronics.com
> Subject: Re: Kitfox-List: Kitfox 5 Flight tests
>
>
> <smokey_bear_40220@yahoo.com>
>
> Interesting Mark,
>
> Sounds like the static port is the better bet for you.
> Too bad the higher speeds were not true. Still doing
> well though. Mine was within 2-3 knots of correct
> with the static port too.
>
> I think you will really like the adjustable IVO in
> comparison. You can use all the power in flight for
> climb and cruise.
>
> Kurt S
Message 6
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| Subject: | Re: Kitfox 5 Flight tests |
Noel
That is something I would like to do after my test flights. I wish Kitfox
would have made this part of the building instructions. It will be l lot
harder now to install the second static port.
Mark
Wisconsin
Kitfox 5 912 UL
DO NOT ARCHIVE
************************************** See what's free at http://www.aol.com.
Message 7
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| Subject: | re, lost propeller blades |
What I was concerned with is if the reduction came out to an even number
it
is possible for the power pulses occurring at the same place every
revolution of the prop. I have picked up that could have a bad effect
of
some props. Most of those props are not recommended for direct drive
applications as direct drive applications have the power pulses in the
exact
same place on every other revolution ( four stroke ).
Noel
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Barry West
Sent: Tuesday, April 17, 2007 12:13 PM
Subject: Kitfox-List: re, lost propeller blades
You guys are great, I received 11 responses so far. I want to respond
to
couple of these here.
Noel wanted to know my gearbox ratio. It is 2.43 : 1.
Some of you did not pick up the original email. Rather than me digging
that
out you can go to our chapter web site and find the latest newsletter.
I
wrote an article describing the event and it is in that newsletter. The
web
site is www.eaa732.org.
There was damage to the engine mount and John shipped me a new one last
week
but there is a lot to do before I need those lugs and I will answer some
of
you individually.
Barry
Message 8
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| Subject: | Re: IVO IFA Propeller |
So, Clint, tell me why you think the 68" is a better IVO prop for the 912 UL engine,
currently I have mine at 70", but I feel that is too much prop and am thinking
of shortening to 68".
--------
kitfoxmike
model IV, 1200
speedster
912ul
Do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=107587#107587
Message 9
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| Subject: | Re: IVO IFA Propeller |
I had a 70 to start. It worked ok but even the 68 inch in my opinion
pitched a little high. I would try it first before doing anything. My
advise is don't over work the unit. I use manifold pressure gauge along
with tachometer. At sea level I would like to see between 22 to 23 inches.
If it is a lot higher then that, your RPM's will be on the low side. Call
me if you want (650) 712-1802
Clint
From: "kitfoxmike" <customtrans@qwest.net>
Subject: Kitfox-List: Re: IVO IFA Propeller
So, Clint, tell me why you think the 68" is a better IVO prop for the 912 UL
engine, currently I have mine at 70", but I feel that is too much prop and
am thinking of shortening to 68".
--------
kitfoxmike
model IV, 1200
speedster
912ul
Do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=107587#107587
_________________________________________________________________
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Message 10
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| Subject: | Re: Locktite on spinner bolt. |
Hi Michel-
I've had that lathe since about 1963, I think, and it has traveled
from Michigan to California (about 2300 miles) in a car, and traveled
back from there in a trailer. I once loaned it to a guy here in
Michigan, while I moved to California. He enjoyed the use of it for
about 2 years, until I got settled into a house with a garage where I
could use it again, and he delivered it to me out there, while he
made a trip to California. I then left California to move back here
to Michigan, and had to leave it out there, only to return to
California a few years later, to bring it home in a trailer....WHEW!
But I digress...
The amount of out-of-round that I had was partly due to the bulkhead,
as they call the mounting plate, and partly due to the irregular
surface of the inside of the spinner itself. I didn't do anything to
the inside of the spinner. Correcting that would have taken somebody
with a lot more smarts than what I have just to be able to figure a
way to hold the slippery, angled thing in the first place! Perhaps a
vacuum device could be built that would hold the spinner so that it
could be turned true inside.
Yes, I did invent the wheel...it had four sides...
Better get in out of the sun, Michel. : )
Lynn
do not archive
On Apr 16, 2007, at 4:01 PM, Michel Verheughe wrote:
>
> Thanks guys and sorry for a bit late answer. No, my spinner is
> glassfiber so I don't have a problem with lead/graphite pencil on
> aluminium.
> Lynn, you have also a Jabiru and the same spinner as me. Putting it
> on a lathe? Could be an idea but my off-center motion is much
> greater than what I could get from the thickness of the glassfiber.
> Beside that ... a lather! Gosh, you must be a rich (and ingenious)
> man! I hardly have anything more than a Swiss knife to work on my
> plane. ... okay, I exaggerate a bit here but ... a lathe? And
> knowing how to use it? Listen, did you also invented the wheel, or
> what? ... just kidding! Sunny weather in Norway brings the
> silliness out of me! :-)
>
> Cheers,
> Michel
>
> do not archive
>
>
Message 11
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| Subject: | Re: Need brake pads and caliper for early Kitfox Model II |
#399
My KitFox II has a "Tolomatic" caliper. If you google that name you
will come up with the following URL: http://www.directindustry.com/
scripts/go_to_web.php. Hope this helps.
Mike
On Apr 15, 2007, at 3:28 PM, Joe & Jan Connell wrote:
> Hi Guys,
>
> My 1998 Kitfox II needs a brake caliper and a set of brake pads.
> Are the parts listed in the Leading Edge Air Foil (LEAF) catalog
> direct replacements? If not, can you steer me to another parts
> source?
>
> Thanks...
>
> Joe Connell
> Kitfox-II #399
>
> http://www.matronics.com/Navigator?Kitfox-List_-
> ============================================================ _-
> forums.matronics.com_-
> ===========================================================
>
Mike
mclayton@rochester.rr.com
Mobile: 585-737-5506
8 Adams Trail
Spencerport, NY 14559
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