At 01:52 PM 10/10/2004, you wrote: >Hi frindes ..hope all of you are fine and and well ...these quistion are >very important for me ,the reson is because I did not fly any kr2s in whall >my life ...ok my quistions are : > >-1 Do we have to mass balance the control surfaces?
The short answer is Yes. The longer answer is that ailerons MUST be balanced, elevators can be balanced, and rudders are not really a concern. >-2 has any body encouter any flutter or unusual viprations at high speed ? Supposedly, one KR based based plane broke apart during a high speed run and it is believed that a mass balance broke off of one aileron and it went into flutter. This happened at one of the gathers back in the 80's. Don Reid - donreid "at" erols.com Bumpass, Va Visit my web sites at: AeroFoil, a 2-D Airfoil Design And Analysis Computer Program: http://www.eaa231.org/AeroFoil/index.htm KR2XL construction: http://users.erols.com/donreid/kr_page.htm Aviation Surplus: http://users.erols.com/donreid/Airparts.htm EAA Chapter 231: http://eaa231.org Ultralights: http://usua250.org VA EAA State Fly-in: http://vaeaa.org