The design of the KR was based on the Taylor Titch. A well respected plans seller for years. RR could have accepted that the design criteria was adequate and acceptable for the changes for the KR, Virg
On 9/26/2014 2:41 AM, Mike T via KRnet wrote: > I agree with DJ, and I think other kitplane makers do too. Recently the > designer of the CX4 (an aluminum single-seat design about 10 years old), > discovered the cable attachment method on the rudder was causing fatigue > cracks in the rudder cables of his prototype. So he redesigned the part > and emailed it as a "MANDATORY DESIGN CHANGE" in big letters to all > registered builders. Larger kitplane makers like RV make similar > improvements in their plans all the time. > > According to some KR-Net posts, Neil Bingham's design review talking about > the unsafe aft CG limit appeared in Sport Aviation in 1986 and also in the > KR Newsletter. Even if Rand-Robinson claimed they never heard of Sport > Aviation, they can hardly claim they didn't know about the Newsletter > because they occasionally made contributions to it. >