Just got back from a local EAA meeting where Rod Hightower was the speaker
to around 100 local aviators. It seems that EAA is going back to its roots
while advancing into the new era of aviation and technology. EAA has been
re-organized to bring more value to the members. I think Oshkosh is goi
Anyone interested in a 'bent' centre spar should take a look at Darren
Crompton's site http://www.kr-2s.com/. There are some good ideas there.
Cheers,
Tony King
Queensland Australia
On 10 February 2012 00:48, GaryH wrote:
> Bill,
> This is an interesting thought and I like the idea. Where wo
I'm working on a library for my EAA chapter, if you could send me a
copy, I'll make sure it gets a permanent home.
-mdg
On Thu, Feb 9, 2012 at 10:08 AM, Phillip E. Harrison
wrote:
> Jeff,
> Great advice, you are right on. There is a long history of wood
> being used in airplane structures
Joe is exactly right on this count. The plywood on the spar is called "Sheer
Webbing" as it's loading is all in sheer with the top spar cap attempting to
move one direction and the bottom spar cap in another direction. In the case of
the center spar, the spar caps want to bow in flight and the s
Thanks Joe, thanks for the insite. I was looking at building a KR but the
list is encouraging me to buy an unfinished project instead of building.
This mode has made me looking at the plane from a different point of view.
Now I need to be an inspector first, then a builder. I want to be able
phill,I am not an engineer but have some real life experience with this idea.
(construction & structural steel) Typically a small hole in the centerline of
the web is not an issue. The futher the hole needs to be up or down from center
determines if it would need reinforcement. Also the distance
The bend would be at the fuselage-stub-wing joint.
I've got another project (Turner T-40) that uses such a design - a solid
center-spar of laminations, bent at a 5-degree angle on each side, where
the side exits the fuselage.
On 2/9/2012 7:18 PM, GaryH wrote:
> Bill,
> This is an interesting th
Jeff,
Great advice, you are right on. There is a long history of wood
being used in airplane structures.
Mr. Wade,
"looking for stress in wood" /grading wood is critical. Things to
consider are: grain slope angle-straight "grain" is what you want, spacing
of growth rings...
Bill,
This is an interesting thought and I like the idea. Where would the "bend"
be located along the spar? How would you carve or contour the foam over a
complex curve?
Anyone,
On another note, I've read in the plans that one layer of 5.6 oz glass cloth
is used for covering. It seems this is
Recently I ran across a picture of a KR that had what looked like a 3/8"
metal tube, like a fuel line, or similar, running through the main spar
just inside the cabin, then farther inboard, a hole with a control rod
running through it. This was the main spar, not the aft spar. It didn't
loo
Come on guys. Read his message again. What I'm reading here is a desire to
build the spar caps using Doug Fir rather than Spruce.
Mr. Wade. This isn't new ground. Others have done the same. Select your wood
carefully. Keep in mind that when a spruce tree is selected to be used as stock
for ai
Mr. Wade, If you are going to build a solid centre wing spar of laminates
you might bend them so there is no change of angfle where the outer wing
panels joins the centre section.
Bill Wer
Okay Mr Wade, I can be opinionated!. You sound like you know what you are
doing, i.e. making a solid center spar as opposed to the plans built box
construction. Not a bad idea if the center spar is going to have a lot of
other than plans built extras attached to it. Your spar will be about 10%
13 matches
Mail list logo
