I agree with you the spacer & one single bolt is stronger than the two
bolts.
The only problem is to start with this when you fit the WAFs to the spars,
if the WAFs are slightly out of alignment you have a hellve job to get the
bolt in without damaging the bolt or the WAF's . As there has neve
Perhaps I should point out that the main reason I did the single bolt thing
was so I could eliminate that unsightly at the WAFs and not have to access
the nuts, although it is also the optimal way to do it (not that the single
shear method hasn't worked just fine for 100% of the KRs built to dat
I have been around this thing for a long time and this subject keeps coming
up. I think that the consensus is that the single bolt, with spacer, is the
--
Dan
I use the single bolt, but what I did to make aliment easier was, I
installed the was in
I have been around this thing for a long time and this subject keeps coming
up. I think that the consensus is that the single bolt, with spacer, is the
way it should be done. However, I will bet that there are at least as many
done with a bolt in each attachment as there are with the single bolt
Hi Mark,
Did you use steel spacers; or would aluminum work or will it "crush" over time?
Thanks,
Ron
--- On Sat, 10/2/10, Mark Langford wrote:
> From: Mark Langford
> Subject: KR> WAF spacers
> To: "KRnet"
> Date: Saturday, October 2, 2010, 9:30 PM
OK Guys..bear with me. the concept of the Experimental Aircraft program
is for Personal Education, and I am certainly learning something I had
not considered before. A slightly different way for me to view this is
that the spacer between them tends to make the two separate WAFS act
more like a
OK, this isn't the greatest picture, but check out
http://www.n56ml.com/900hour/100717140m.jpg . It shows a thin aluminum
angle used to position a 3/8" nutplate for each WAF bolt, and one continuous
WAF bolt for what was a place for two (in single shear). Astute viewers
will notice there's to
Thank you Mark. With your info, I did a short Google search and came up
with this article:
http://www.pirate4x4.com/tech/billavista/NutsandBolts/Nuts&Bolts_signed.pdf
So the point is that with one bolt on each fitting, only that one
fitting must lose friction in order to load its bolt in shear.
Thank you Mark.
I was actually in the process of drawing up the WAF's in SolidWorks to
illustrate the difference, but you nailed it right there.
Cheers.
Pete.
On 3/10/2010 13:30, Mark Langford wrote:
> Replacing the two bolts with one longer one and a spacer replaces two bolts
> in single shear
Replacing the two bolts with one longer one and a spacer replaces two bolts
in single shear (not the best) with one bolt in double shear, which is far
better. Although I knew it already, I relearned that lesson when I checked
my flaps after 930 hours and found the oilite bushings elongated and
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