lml@lancaironline.net Mailing List Archive

<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> In a message dated 6/13/99 9:48:51 PM, you wrote: <<The elevator control surface balancing is done to keep control pressures on the stick constant when the aircraft is experiencing G forces.>> NO! NO! NO! Control surface balancing is done to prevent flutter. Please don't even THINK about ignoring this. While there may be an impact to the stick-force-per-G curve, as Ed suggests, the primary purpose of balancing the movable control surfaces.is to keep the airplane in one piece by preventing flutter. The bob-weight is the thing that increases the stick-force-per-G. Note that "irreversible surfaces" (ones where the aerodynamic load cannot change the surface position) do not require balancing. Flaps are one example. Hydraulically-boosted control surfaces are another, but there aren't any of those in Lancairs ..... yet! - Rob Wolf LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html