In all of my plans there was a true airfoil shape, Virg On Thu, 13 Apr 2006 15:47:07 -0500 "countryhomeprint" <countryhomepr...@bellsouth.net> writes: > KR-netters > > After consulting with the Aerospace Department at Mississippi State > University concerning the pitching up of my KR-2 upon stall > approach, a probable cause has been reached. The Horizontal > Stabilizer is stalling prior to the wing stall. This may be caused > by the longer wing by Dan Deihl. This creates a very dangerous > condition. There are three ways to prevent this condition. (1) > Increase the stabilizer area by increasing by several inches the > length of the stab. The standard flat stabilizer is only about 50% > as efficient as a stabilizer with a true airfoil which leads to the > 2nd method of prevention. (2) Change the stab airfoil to a true > airfoil which will increase the efficiency of the stab. And (3), > Don't stall the aircraft, keep the airspeed well above stall. > It has been noticed that some KR-2 builders constructed a true > airfoil rather than the flat stab shown in the plans. Maybe it > should be noted to other KR builders to do the same. > You guys who have true airfoil stabs, where did you get your plans, > technical info., etc. I would like to change my stab to a true > airfoil. > > Maybe if I put Armorall on my horizontal stabilizer my problem will > be solved. > > I'm still finding dingle berrys after that close call. > > Bill Page > boliverp...@bellsouth.net > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > >
Virgil N. Salisbury - AMSOIL www.lubedealer.com/salisbury Miami ,Fl
