Should be no problem at all. The vertical grain of the plywood is mainly what the shear web needs (radio controlled planes usually use only vertical balsa sheet) so vertical splices don't really loose any strenght. Also, as Dean pointed out, the scarfed ply is just as strong anyway.
I put all of my scarfs centered over the vertical spacers also to make it easy to clamp and glue them (waste of time to glue the scarfs and let them dry before assembling the spars) and so that strength of the scarf really is not a factor anyway. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Dene Collett (SA) Sent: Monday, September 27, 2004 11:33 AM To: krnet Subject: KR> ply scarfs Hi gang After cutting my ply strips for the spar webs, I found that I had cut two strips too many for thr rear outer spars leaving me short of one skin for one of the forward outer spars. After sifting through all my offcuts I found that I could make up the web from three seperate offcuts. Would this be acceptable, my scarf joints are all 1:20. The spar would have had one scarf joint anyway due to the size of the ply sheets sold here. They will be situated at approx 25%, 40% and 90% of outboard spar span. Thanks Dene Collett KR2S-RT builder Port Elizabeth South Africa mailto: dene.coll...@telkomsa.net P.S: checkout www.whisperaircraft.com _______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
