Paul wrote- > I wish we could come up with a new max weight with the new wings.
Unless I'm mistaken, the "new wings" are only a new airfoil design optimized for the KR's performance envelope. Nothing was done to change the wing spars, which are the structural part that transfer the loads. In fact, I believe one of the design criteria for the new wing was that it would be possible to build to the AS504x airfoil using the same spars and WAFs as with the RAF48. That being the case, using the new wings do not change the allowable loadings or the original structural calculations that determined the design maximum gross. Your own maximum gross may vary from design based on how you build the airplane or how you elect to test fly it. Complete details and history on the development of the AS504x wing are here: http://www.krnet.org/as504x/ Oscar Zuniga Medford, OR
