Sean I am imagining a scarf about 7 inches long (11-12 times 5/8"). That will serve you very well. One added measure is to keep the scarf slope visible to the side so that the side ply further adds to the strenght of the glue joint. You could put them all in the same bay without worry but more assurance would be gained by having the upper longeron scarfs at the firewall end because this will later be doubled up. In this case I would leave the scarf slope visible to the top. It will more readly conform to the curve. Good luck. Pat ----- Original Message ----- From: "sean duggan" <seanjuly1...@yahoo.com> To: <kr...@mylist.net> Sent: Saturday, March 05, 2011 1:32 PM Subject: KR> Longeron Splices
> Hey Neters, > > I received my wood in good condition from wicks last week. Since then, I > have > been preparing to build the fuselage sides. This morning I started laying > out my > jig board for the sides. After placing the top 5/8X5/8" longeron on the > table, I > immediately noticed that it was too short. All of the long 5/8x5/8" spruce > longerons that I received are a hair over 12' long and I need about 13' > for the > build. So at this point I am left only with scarfing on a longer piece of > spruce > to extend my longerons. > > > I am looking for some advice on where to put the scarf joints. I need to > lengthen the top and the bottom longerons. I figure that somewhere close > to the > tail is a good place for the bottom longeron scarf, as there is minimal > contour > that far back. Maybe I can do the same for top longeron to conserve my > long > pieces of wood. Would there be any strength issues putting the top and > bottom > scarf joints in the same bay? I'm considering the bay between Fuse > Stations L > and M. > > Thanks for help. > > Sean > > > > > _______________________________________ > 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 >
