Today's Message Index:
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1. 09:09 AM - Aileron question (Dan Loegering)
2. 05:36 PM - Re: Aileron / Wing Chord Question (Rcaprd@aol.com)
Message 1
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| Subject: | Aileron question |
--> Pietenpol-List message posted by: "Dan Loegering" <danl@odayequipment.com>
Hi All,
Have a quick question on the layout of the wing ribs. When I lofted the dimensions
from the plans onto my rib jig, I noticed that everything lined up well with
the full size rib print except the rear-most vertical member in the rib.
The full size print has this part almost 1" further forward than what the plan
dimensions show. This will result in a shorter chord dimension on my finished
ailerons. Looking for what the finished dimension should be close to from the
hinge line to the trailing edge... would anyone be willing to throw a tape
measure on their aileron (OK - lay it gently on...) and see what you come with?
Currently am at the "got a bunch of big sticks and cut them into little sticks"
stage and am quickly gearing up for the "now glue them back together to make
ribs" stage.
Dan Loegering
Fargo, ND
Message 2
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| Subject: | Re: Aileron / Wing Chord Question |
In a message dated 10/12/2005 11:11:11 AM Central Standard Time,
danl@odayequipment.com writes:
Have a quick question on the layout of the wing ribs. When I lofted the
dimensions from the plans onto my rib jig, I noticed that everything lined up well
with the full size rib print except the rear-most vertical member in the rib.
The full size print has this part almost 1" further forward than what the
plan dimensions show. This will result in a shorter chord dimension on my
finished ailerons. Looking for what the finished dimension should be close to
from
the hinge line to the trailing edge... would anyone be willing to throw a
tape measure on their aileron (OK - lay it gently on...) and see what you come
with?
Currently am at the "got a bunch of big sticks and cut them into little
sticks" stage and am quickly gearing up for the "now glue them back together to
make ribs" stage.
Dan Loegering
Fargo, ND
Dan,
I built 2 extra ribs over 7 years ago. They make great wall hangings !!
Here are the results of the measurements that I just took:
From the aft edge of the rib (where the trailing edge goes) to the aft side
of the rear most vertical member is - 10 1/2". The plans call for 11 3/4".
From the aft edge of the rib to the fwd edge of the aft 1" spar opening - 23
3/16" The plans call for 24 1/2".
Between the openings of the 1" Spars - 27 3/4" The plans call for 27 3/4".
This is the most important dimension, because it is what the center section,
and lift strut points are built to.
I used 3/4" spars, therefore I had to use 1/8" shims on each side of the
spars, at each rib location. If I would do it again, I would build the ribs to
use 3/4" spars so I wouldn't have to shim them, yet maintain the center to
center dimension of the spars, which works out to be 28 3/4".
My total wing chord, with leading & trailing edges installed, came out to 60
1/8".
Chuck G.
NX770CG
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