Today's Message Index:
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1. 07:13 AM - Re: email (flylightning)
2. 07:47 AM - Re: email (Johnny Thompson)
3. 10:41 AM - Re: email ()
Message 1
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I will work on getting a drawing out on the web site so it can be
duplicated..we use it for setting the wings to match.we set one, than set
the next one to match..
Nick Otterback
Arion Aircraft, LLC
_____
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of
N1BZRich@aol.com
Sent: Sunday, May 18, 2008 8:45 PM
Subject: Re: Lightning-List: email
In a message dated 5/17/2008 10:47:16 A.M. Eastern Daylight Time,
cjk129@cox.net writes:
Take a clear plastic tube with water in it. Line one wing up with the wing
root. Line the water level at one end up with the leading edge where the
wing meets the root. The tube goes under the wing and up to the trailing
edge. Measure the distance from the water level at the other end, to the
trailing edge. This measurement is the vertical height difference between
the leading and trailing edges.
Hi Colin,
I used a "water level" extensively when rigging my Pitts. The neat
thing about it is that it can be any length - such as wing tip to wing tip.
The method you describe above should work. However, I think the new
incidence jig that Lightning has come up with will be simple and likely do a
more precise job when using one of the new digital levels. But as I said,
your "water level" method will work.
Blue Skies,
Buz
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Message 2
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I used a simple system that worked well on N8WN. I put a 6" 2x6 directly
above the aft "C spar" of the wing then placed the digital level on the
2x6 with the forward point of the level on the wing on top of the main
spar. I repeated this mid span and then on the tip of the wing. As I
suspected I had some (minor) difference in twist between the two wings
but not enough to matter. I set the incidence on the left and the wing
matched the karmen perfect. On the right I had to place downward force
on the leading edge to bring the wing into 0.2 degree of the left wing.
I then had to add micro balloon mix to the top forward of the karmen
about 1/4" to bring it into alignment with the wing. The bottom on the
wing is not a perfect match but with years of experience with composites
this is about normal. Not a big deal at all. What matters is the
aircraft flew hands off without any roll at all. Johnny
----- Original Message -----
From: N1BZRich@aol.com
To: lightning-list@matronics.com
Sent: Sunday, May 18, 2008 6:52 PM
Subject: Re: Lightning-List: email
In a message dated 5/17/2008 12:26:35 P.M. Eastern Daylight Time,
clive.james@uk.bp.com writes:
Is there a concern with the lighting that the fuselage isn't a good
enough template?
Hi Clive,
The karmen on the two fuselage sides are probably pretty close in
the original molds, but that may change over time with use. Plus the
individual layups could vary, as could the way the two halves are
glassed together. All of these processes leave some room for very
slight miss-allignment of the karmen on each side. In the past, some
Lightnings have come out with no roll when using the karmen and others
have had a roll to correct. So it just depends. The new jig that SYI
is using makes sure both wings are set to the same incidence. Adds one
step to the process, but insures they are the same.
Blue Skies,
Buz
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favorites at AOL Food.
Message 3
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Thanks Johnny. I will use your method as an extra check!
Colin K.
---- Johnny Thompson <14az@mysprocketmail.com> wrote:
> I used a simple system that worked well on N8WN. I put a 6" 2x6 directly above
the aft "C spar" of the wing then placed the digital level on the 2x6 with the
forward point of the level on the wing on top of the main spar. I repeated
this mid span and then on the tip of the wing. As I suspected I had some (minor)
difference in twist between the two wings but not enough to matter. I set
the incidence on the left and the wing matched the karmen perfect. On the right
I had to place downward force on the leading edge to bring the wing into 0.2
degree of the left wing. I then had to add micro balloon mix to the top forward
of the karmen about 1/4" to bring it into alignment with the wing. The bottom
on the wing is not a perfect match but with years of experience with composites
this is about normal. Not a big deal at all. What matters is the aircraft
flew hands off without any roll at all. Johnny
> ----- Original Message -----
> From: N1BZRich@aol.com
> To: lightning-list@matronics.com
> Sent: Sunday, May 18, 2008 6:52 PM
> Subject: Re: Lightning-List: email
>
>
> In a message dated 5/17/2008 12:26:35 P.M. Eastern Daylight Time, clive.james@uk.bp.com
writes:
> Is there a concern with the lighting that the fuselage isn't a good
> enough template?
>
> Hi Clive,
> The karmen on the two fuselage sides are probably pretty close in the original
molds, but that may change over time with use. Plus the individual layups
could vary, as could the way the two halves are glassed together. All of
these processes leave some room for very slight miss-allignment of the karmen
on each side. In the past, some Lightnings have come out with no roll when using
the karmen and others have had a roll to correct. So it just depends. The
new jig that SYI is using makes sure both wings are set to the same incidence.
Adds one step to the process, but insures they are the same.
> Blue Skies,
> Buz
>
>
>
>
>
> ------------------------------------------------------------------------------
> Wondering what's for Dinner Tonight? Get new twists on family favorites at
AOL Food.
>
>
>
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