RE: SIG Four Star 60 modifications
Just almost ready to fly mine now. It seems to have taken ages to build. I have built about 5 arfs since I started this. The only mods were to slightly increase the rudder elevator and airleron sizes as well as sheet the leading edge. The tips have all been rounded which added about 2" to the wingspan! Dubro tail wheel used and all the sheeting that they say for the empenage. The CG seems to be literaly spot on. Must double check that but thats what it seems. The engine is an O.S. 91 FS