Most aircraft use 15% to 35% mac. The forward limit is influenced by the distance to the horizontal and size. The aft limit is not. I think most go wrong in the mac. The mac for a kr2s is slightly smaller than for a KR2 and the plans are for a kr2. The governing factors are taper and sweep. You can measure both easily. Something I found interesting with the new airfoil is that it looks like the sweep is different than what is in the plans.
https://sites.google.com/site/mykr2stretch/ https://sites.google.com/site/mykr2stretch/parts-for-sale On Aug 17, 2015 5:40 PM, "Chris Prata via KRnet" <krnet at list.krnet.org> wrote: > The plans call for using 8 inches - 16 inches of the wing cord. So forward > point would be 8 inches aft of the wings front edge. Aft would be 16 > inches. > This is for the RAF 48 airfoil. > I wonder if the new airfoil would be different???? > > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
