Today's Message Index:
----------------------
1. 08:47 AM - Flutter (roger lambert)
2. 01:25 PM - Re: Flutter (Gig Giacona)
3. 01:42 PM - Re: Re: Flutter (Jim Belcher)
4. 02:12 PM - Re: Re: Flutter (Paul Mulwitz)
5. 05:12 PM - making large holes in UHMWPE (Carlos Sa)
6. 05:21 PM - Re: making large holes in UHMWPE (Jeyoung65@aol.com)
7. 05:32 PM - Re: making large holes in UHMWPE (Carlos Sa)
8. 05:43 PM - Re: making large holes in UHMWPE (Paul Mulwitz)
9. 05:50 PM - Re: making large holes in UHMWPE (Ashley)
10. 05:52 PM - Re: making large holes in UHMWPE (LarryMcFarland)
11. 06:21 PM - Re: Removing those &()^^)^%$ paper part number stickers (Gary Ray)
Message 1
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The following was just posted by E-hotline on behalf of the EAA:
On August 21, Roca requested that the San Antonio Flight Standards District
Office (FSDO) assign a DAR to inspect his aircraft, which he and his son
built. Later that day a DAR contacted Roca informing him that the inspectio
n
would not happen until the Manufacturing Inspection District Office (MIDO)
had cleared it with the FAA in Oklahoma City. Alex called the MIDO and was
told they were still waiting to hear from Washington.
In reality, there was no need to obtain permission for the airworthiness
inspection. The confusion stemmed from the NTSB=92s well-publicized request
in
April 2009 that the FAA ground all Zodiac 601XL aircraft, and not conduct
any further airworthiness inspections the type because of recent fatal
accidents involving the type. (NTSB suspected =93aerodynamic flutter=94 as
the
cause of all the accidents, which resulted in 10 fatalities. That theory wa
s
later proved false <http://www.eaa.org/news/2009/090709_heintz.pdf>.)
Message 2
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Our friend Dr. Ed had the same problem with the Baton Rouge FSDO. EAA worked it
out for him in no time flat.
--------
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=263727#263727
Message 3
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On Friday 18 September 2009 15:24, Gig Giacona wrote:
>
> Our friend Dr. Ed had the same problem with the Baton Rouge FSDO. EAA
> worked it out for him in no time flat.
One wonders how long it will take the FAA to understand that this is not a
type certificated aircraft, and that legally, a 601XL does not correspond to
a single type. It's either an LSA, a box of parts someone has assembled, or a
bunch of sheet metal and steel to be formed, welded, and assembled.
Maybe we should ground all RVs, because they are made out of the same raw
stuff. :-)
--
============================================
Do not archive.
============================================
Jim B Belcher
BS, MS Physics, Math, Computer Science
A&P/IA
Retired aerospace technical manager
Happiness is a belt-fed weapon
============================================
Message 4
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Hi Jim,
I believe the FAA does indeed understand the differences between
S-LSA and various experimental versions of the Zodiac-XL. My
conversations with a bunch of FAA managers at Sun n Fun led me to
understand they feel concern over factory built planes, even S-LSAs,
sold to the public. They really don't spend much effort worrying
about experimental planes.
Paul
XL awaiting engineering changes
At 01:31 PM 9/18/2009, you wrote:
>One wonders how long it will take the FAA to understand that this is not a
>type certificated aircraft, and that legally, a 601XL does not correspond to
>a single type. It's either an LSA, a box of parts someone has assembled, or a
>bunch of sheet metal and steel to be formed, welded, and assembled.
Message 5
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| Subject: | making large holes in UHMWPE |
I am trying to figure how to make a 1.125" hole in a piece of UHMWPE.
I want it to be snug, as it will be the rear bearing for the torque tube
6V13-3.
In aluminum, I drill small holes around the perimeter, remove the centre
piece and file until I have the proper dimension.
However, UHMWPE is hard to sand or file. There must be a better way.
A 1.125" whole saw will probably result in an oversize hole, and a with 1"
one I still have the problem of enlarging the hole...
Any ideas?
Thanks in advance for your comments...
Carlos
CH601-HD, plans
working on centre wing
Message 6
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| Subject: | Re: making large holes in UHMWPE |
Try a circular hole cutter (Spruce P/N 12-10600). You can adjust the hole
size. Jerry of GA DO NOT ARCHIVE
In a message dated 9/18/2009 7:12:43 P.M. Eastern Standard Time,
carlossa52@gmail.com writes:
I am trying to figure how to make a 1.125" hole in a piece of UHMWPE.
I want it to be snug, as it will be the rear bearing for the torque tube
6V13-3.
In aluminum, I drill small holes around the perimeter, remove the centre
piece and file until I have the proper dimension.
However, UHMWPE is hard to sand or file. There must be a better way.
A 1.125" whole saw will probably result in an oversize hole, and a with 1"
one I still have the problem of enlarging the hole...
Any ideas?
Thanks in advance for your comments...
Carlos
CH601-HD, plans
working on centre wing
(http://www.matronics.com/Navigator?Zenith-List)
(http://www.matronics.com/contribution)
Message 7
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| Subject: | Re: making large holes in UHMWPE |
I have a hole cutter, but the smallest diameter it will cut is 1.75"
AS&S is certainly a good idea, and not expensive! Thanks, Jerry!
Carlos
2009/9/18 <Jeyoung65@aol.com>
> Try a circular hole cutter (Spruce P/N 12-10600). You can adjust the hole
> size. Jerry of GA DO NOT ARCHIVE
>
>
Message 8
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| Subject: | Re: making large holes in UHMWPE |
Hi Carlos,
I would probably start a hole in the middle or near the edge of the
marked outline of my finished hole. Then I would use a bench mounted
scroll saw to cut close to the outline. For a final finish on the
hole I would probably use a rotating sanding drum mounted in a
Dremel, hand drill, or drill press.
Paul
XL awaiting engineering changes
At 05:11 PM 9/18/2009, you wrote:
>I am trying to figure how to make a 1.125" hole in a piece of UHMWPE.
>I want it to be snug, as it will be the rear bearing for the torque
>tube 6V13-3.
>
>In aluminum, I drill small holes around the perimeter, remove the
>centre piece and file until I have the proper dimension.
>However, UHMWPE is hard to sand or file. There must be a better way.
>A 1.125" whole saw will probably result in an oversize hole, and a
>with 1" one I still have the problem of enlarging the hole...
>
>Any ideas?
>
>
>Thanks in advance for your comments...
>
>Carlos
>CH601-HD, plans
>working on centre wing
>
Message 9
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| Subject: | Re: making large holes in UHMWPE |
How about a Harbor Freight Unibit?
Floyd Wilkes
----- Original Message -----
From: Carlos Sa
To: zenith-list@matronics.com
Sent: Friday, September 18, 2009 7:11 PM
Subject: Zenith-List: making large holes in UHMWPE
I am trying to figure how to make a 1.125" hole in a piece of UHMWPE.
I want it to be snug, as it will be the rear bearing for the torque
tube 6V13-3.
In aluminum, I drill small holes around the perimeter, remove the
centre piece and file until I have the proper dimension.
However, UHMWPE is hard to sand or file. There must be a better way.
A 1.125" whole saw will probably result in an oversize hole, and a
with 1" one I still have the problem of enlarging the hole...
Any ideas?
Thanks in advance for your comments...
Carlos
CH601-HD, plans
working on centre wing
Message 10
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| Subject: | Re: making large holes in UHMWPE |
Carlos,
I cut the stuff on a lathe and get rather precise holes. Any lathe would
do and
save you considerable time. Otherwise, a fly-cutter will do the same
accuracy as well.
Just cut a sample hole first.
Larry McFarland 601HDS at www.macsmachine.com
Carlos Sa wrote:
> I am trying to figure how to make a 1.125" hole in a piece of UHMWPE.
> I want it to be snug, as it will be the rear bearing for the torque
> tube 6V13-3.
>
> In aluminum, I drill small holes around the perimeter, remove the
> centre piece and file until I have the proper dimension.
> However, UHMWPE is hard to sand or file. There must be a better way.
> A 1.125" whole saw will probably result in an oversize hole, and a
> with 1" one I still have the problem of enlarging the hole...
>
> Any ideas?
>
>
> Thanks in advance for your comments...
>
> Carlos
> CH601-HD, plans
> working on centre wing
Message 11
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| Subject: | Re: Removing those &()^^)^%$ paper part number stickers |
Jim
I used carb cleaner. Works very well and comes in a convenient spray can
for a couple dollars at Wallmart and is the best price I found.
Gary Ray
davgray@sbcglobal.net
----- Original Message -----
From: "Jim Belcher" <z601a@anemicaardvark.com>
<zenith-list@matronics.com>
Sent: Wednesday, September 16, 2009 12:32 PM
Subject: Zenith-List: Removing those &()^^)^%$ paper part number stickers
>
> I may be the only person who finds those little paper part number stickers
on
> Zenith parts particularly annoying. Sure, I want to know what the part
number
> is, but these little beasts attract dirt and grease, and don't like to
come
> off cleanly.
>
> In case I'm not the only person, I have posted the method I'm using to
remove
> the paper stickers:
>
> http://www.anemicaardvark.com/Z601XL/
>
> This method removes them with relative ease, and even gets rid of the
residue
> left by the adhesive.
> --
>
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