Larry, I think this might be what you are referring to....
http://www.krnet.org/as504x/as5046inst.html and http://www.krnet.org/as504x/
On 10/10/2021 4:28 PM, Flesner wrote:
On 10/10/2021 1:58 PM, Mark Wegmet wrote:
. the difference (other than length and height) between the original
KR-2 spars and the KR2S spars is that the original plans for the KR2
spars had the mahogany plywood (shear web?) on one side of the spar,
and the 2S spar has this on both sides of the spars (necessitating
the addition of weep holes) . The basic "ladder" style construction
of the primary spar structure is, essentially, the same.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The 2 had the center section spars shear webbed on both sides and the
outer spars shear web on one side only outboard of the WAF's.
Somewhere along the line it was suggested to double shear the forward
outer spar, not sure about the aft spar. On the new airfoil, the
thicker of the two options, I recall the spars had the same dimensions
except the caps were made thicker to accommodate the thicker airfoil
and the spar was longer for additional wingspan.
If someone would, please post the link for the full story on the new
wing for those not familiar. I thought it was on Langford's site but
I only found a short reference.
Thanks........
Larry Flesner
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________________________________
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