Undoubtedly Mark will chime in here with the facts, but it seems to me that one variant of the AS series airfoil was designed to be a retrofit to the original spars. However, it is recommended to break the rear spar out of the fuselage and raise it a bit to correct the incidence of the wing with the AS series airfoil.
While many seem to poo-poo the RAF-48 airfoil, mostly for it's unknown data points, it is a gentle airfoil with plenty of warning for stalls. It's less than ideal for higher speeds, but it's also not that slow. I've not seen another KR with the same power as mine that is any faster than mine with the RAF-48 airfoil and Diehl skins. Generally speaking, if you are building from scratch, taking advantage of a newer designed airfoil is probably a good idea. But if you have a plane with the older RAF-48, it's probably not going to be worth the cost and labor to change it. -Jeff Scott Arkansas Ozarks. > Sent: Friday, March 13, 2020 at 8:51 AM > From: "Samuel Spanovich via KRnet" <[email protected]> > To: [email protected] > Cc: "Samuel Spanovich" <[email protected]> > Subject: KR> AS5046 wings on RAF48 inner stub wing? > > I am curious if this is even possible, let alone a good idea. I’ve heard > nothing but good things about the new airfoil wings, and certainly wouldn’t > mind having them on my existing KR, however I am curious if they can be ran > without modifying the inner stub wing utilizing the RAF48 airfoil. So > essentially having two different airfoils on the aircraft. > > I understand that Troy Petteway installed the new wings on his aircraft, but > I am unsure of if he went ahead and modified his stub wing as well (if this > has already been discussed, I apologize). > > What issues might arise with this setup? Any insight is greatly appreciated; > I certainly am no expert on Aerodynamics. > > First post back here in a while; work has been keeping me on my toes. > > Sam Spanovich, > 74S, Anacortes WA > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/[email protected]/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to [email protected] > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
