Welcome to the list, and the best source of KR information, John. I have not seen anything about v tails before, as for the airfoil, I think this will explain most of it.
http://www.krnet.org/as504x/ Best Regards Gunnar Olsen Siljan, Norway > a.) Has there ever been any discussion about putting vee-tails on > KRs.....you know, ala Monnet Waiex &/or Beech Bonanzas? > > b.) Has there ever been ANY discussion about building any different > airfoils to utilize [much!] greater horsepower for faster cruise? > >