"costewart23" wrote:
> Thanks Mark, I was looking at yours on your website and it looks
like you just cut the top half of the spar cap off but I just wanted to
be certain.
Maybe we're talking around each other....both top and bottom spars need
to be tapered. Epoxy upper and lower spars with spacer blocks together
as a rectangle, and then taper both top and bottom of the spar assembly.
I think that's what we all mean. There is the argument that you could
taper the "inner" edges of the spar caps (before assembly), leaving the
continuous grains on the outside for absolute maximum strength, but
these spars are so over-designed, that's just not even worth worrying
about. A spar test to failure at one of the Gatherings proved that the
webbing is going to fail first. The bending of the spars before even
that happens is mind-blowing, like 24" from root to tip of the "full"
wing (inner plus outer spars)....
Mark Langford
[email protected]
http://www.n56ml.com
Huntsville, AL
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