Chris Johnston wrote: > I am told the rod end bearings have a habit of cracking and failing, > and have a habit of working loose, any truth to these statements? I would > have thought that if enough were used on the control surface, say 6 or 7 > for the elevator and four say for the rudder, then failure would not be an > option, and what I am told is an old wives tail.
I'm sure that some are better than others, but I wouldn't say that as a whole they are prone to failure. Just buy quality parts and you'll be fine, especially considering the low loading they will see on the back of a KR. Replacement is easy enough if one fails, but you won't have to. > I also want some clarification on hinge bolt holes, the hinge half on > the fixed portion of the surface, ie tailplane, has bolt holes diagonally > opposing, while on the hinge half fixed to the movable surface, ie > elevator, the plans show two bolts separated vertically only, am I correct > in what I say, I would like to make doubly sure I am right because it > takes ages to get another piece of wood if I drill in the wrong place! > Fortunately, I have not had to buy any " other pieces of wood " yet!! Personally, I staggered mine to diagonal corners, but even that is just about impossible given the width of the outer ones. Either way will work. Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net
