KR> CG 2 vs 2S
You are correct that the new airfoil can change the cg limits...the aft cg limit is based on the wing...not the aircraft...so a different airfoil might affect the c.g. range. I looked through a selection of different aircraft and 15%-35% mac is a pretty common range. https://sites.google.com/site/mykr2stretch/ https://sites.google.com/site/mykr2stretch/parts-for-sale
KR> CG 2 vs 2S
>...the kr2s should actually have a >smaller cg range than the kr2. This is because the kr2s has a shorter mean >aerodynamic chord. 15% to 35% mac is a smaller range on the kr2s than a >kr2. +++ Where is the center of lift on the new airfoil compared to the RAF48 and won't that determine where the CG should be located? Just asking. Larry Flesner