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d-m-hague(at)comcast.net
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 Posted: Mon Jan 08, 2007 4:26 pm Post subject: Wing center section questions |
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Working through various bits on my new old Ultrastar, and more confusion.
1. I didn't get a center gap seal with the plane; the previous owner flew
it without it. I'd like to replace it though... I like the idea of using
clear vinyl sheet (the kind convertible back windows are made from),
attached with velcro. I'm guessing .080 thick would be right? Does it go
all the way to the back on the bottom as well, covering the space behind
the cage, or does it end at the front spar on the bottom? Any comments?
2. On my plane, there is a short piece of tubing that slips tightly over
the wing leading edge tubes at the center (you slip it onto one, unfold the
wings, then slip it back until it overlaps both. I don't see this on the
plans nor is it mentioned in the manual, but it does seem it would add
rigidity. It also would help support the center gap seal.
3. On a picture of Ron Wehba's plane I can see a center rib that's
attached to the cage structure, but again, it's not mentioned on the
drawings and I see pictures of other planes that don't seem to have it. Is
it stock?
TIA, Dana
--
--
When I was born I was so surprised I didn't talk for a year and a half.
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David.Lehman
Joined: 10 Jan 2006
Posts: 265
Location: "Lovely" Fresno CA
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| Posted: Mon Jan 08, 2007 5:13 pm Post subject: Wing center section questions |
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Dana...
I can only speak to item #2... That additional tube is an after thought and an excellent idea... I have the same setup on my Firestar, really stiffens up the leading wing leading edges and, as you said, it supports the gap seal (wrap-around Lexan on mine)...
DVD
On 1/8/07, Dana Hague <d-m-hague(at)comcast.net (d-m-hague(at)comcast.net)> wrote:[quote] --> Kolb-List message posted by: Dana Hague <d-m-hague(at)comcast.net (d-m-hague(at)comcast.net)>
Working through various bits on my new old Ultrastar, and more confusion.
1. I didn't get a center gap seal with the plane; the previous owner flew
it without it. I'd like to replace it though... I like the idea of using
clear vinyl sheet (the kind convertible back windows are made from),
attached with velcro. I'm guessing .080 thick would be right? Does it go
all the way to the back on the bottom as well, covering the space behind
the cage, or does it end at the front spar on the bottom? Any comments?
2. On my plane, there is a short piece of tubing that slips tightly over
the wing leading edge tubes at the center (you slip it onto one, unfold the
wings, then slip it back until it overlaps both. I don't see this on the
plans nor is it mentioned in the manual, but it does seem it would add
rigidity. It also would help support the center gap seal.
3. On a picture of Ron Wehba's plane I can see a center rib that's
attached to the cage structure, but again, it's not mentioned on the
drawings and I see pictures of other planes that don't seem to have it. Is
it stock?
TIA, Dana
--
--
When I was born I was so surprised I didn't talk for a year and a half.
[b]
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planecrazzzy
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| Posted: Mon Jan 08, 2007 5:15 pm Post subject: Re: Wing center section questions |
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Here's a couple of pictures of the gap seal that I made for mine....
I didn't make it clear because I sit so far in front of it...
.
.
.
Gotta Fly...
PS Oooops I just saw you said Ultrastar....I don't know if these pictures
will help...
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d-m-hague(at)comcast.net
Guest
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| Posted: Mon Jan 08, 2007 5:55 pm Post subject: Wing center section questions |
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At 08:15 PM 1/8/2007, planecrazzzy wrote:
| Quote: | Here's a couple of pictures of the gap seal that I made for mine....
I didn't make it clear because I sit so far in front of it...
.PS Oooops I just saw you said Ultrastar....I don't know if these pictures
will help...
|
Hmmm, y'know, I know some people have alum gap seals but I never thought of
doing it that way until I saw your pictures, it looks nice. Actually it
might work better on the US since the engine's not above the wing, it could
be one piece all the way to the trailing edge on top... and I have all this
extra aluminum from another project... gotta think about this.
-Dana
--
--
When I was born I was so surprised I didn't talk for a year and a half.
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Mon Jan 08, 2007 6:49 pm Post subject: Wing center section questions |
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| Hmmm, y'know, I know some people have alum gap seals but I never
thought of
| doing it that way until I saw your pictures, it looks nice.
|
| -Dana
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Dana:
Some of us were using aluminum sheet gap seals in 1984 on our US's.
The nylon gap seals did not last long in a UV environment. We had to
come up with a good alternative.
john h
mkIII
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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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possums(at)bellsouth.net
Guest
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| Posted: Tue Jan 09, 2007 6:16 am Post subject: Wing center section questions |
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At 07:18 PM 1/8/2007, you wrote:
| Quote: |
Working through various bits on my new old Ultrastar, and more confusion.
1. I didn't get a center gap seal with the plane;
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Gap seal pictures.
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lcottrell
Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or
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| Posted: Tue Jan 09, 2007 8:10 am Post subject: Wing center section questions |
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One thing you will need to check before you use Possums method, is whether
your wings are the same distance apart front and back. I didn't build my
plane, (probably would not have been any straighter if I had) but there was
about 3/4 inch difference wider in the back of the wing. It was very tight
to get in, and not supported in the back. A wider runner would have solved
the problem, however I didn't notice until I had already mounted the
runners.
Larry, Oregon
do not archive
---
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