> > On 4/13/2021 6:02 PM, Dr. Feng Hsu wrote: > > Do you know if there was any design justification or reasons for the KR2's > > inability of recovery from a spin? > > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > I've not seen or heard of any evidence that says a KR built to plans, > flown with the proper CG location, by a competent pilot is not capable > of spin recovery. I've also not seen or heard of anyone saying it is in > fact capable of doing and recovering from a spin. In spite of it being > a 50 year old design that area of the flight envelope is largely > unexplored. It certainly is in my case. That being said has not kept > me from flying and enjoying my KR for 750 hours. Langford and others > have 1000 + hours in theirs. They won't spin if they don't stall. > > Larry Flesner
The KR design was never really spin tested. One thing to remember is that no two KRs are built the same. We all made our own modifications, changes and "improvements" (which can be debatable). I did test my KR for recovery from an incipient spin. I had no issues with recovery, but my plane was also flying with the CG quite forward, but inside the recommended CG limits. I did NOT allow a spin to fully develop. I only did a spin entry and 1/2 rotation before performing a normal spin recovery. To me, it was a non-event. However, just because my aircraft was capable and it was a "non-event" for me, does not mean anyone else's KR is capable or that it won't be eventful. I don't recommend spin testing as it is not necessary for a cross country machine like the KRs. For example, I have not spin tested my RV. I know it is capable, but I don't feel the need to prove it. -Jeff Scott Arkansas Ozarks. ________________________________ -Please see LIST RULES and KRnet info at http://www.krnet.org/info.html -Change list delivery options at https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info Board -Search recent KRnet Archives at https://list.krnet.org/empathy/list/krnet.list.krnet.org/ -Search John Boyea's decades of archive at https://www.mail-archive.com/krnet@list.krnet.org/
