RE: GP Extra 300S - Group Winter Build
Started the wing. Photo #1 shows the R-2 being placed with G1. Root rib on left and G1 on left of rib. There sure was not much "meat" to glue those little tabs on to the spars! Had to give in and use CA. (As a side note, the instructions are not the best...for example, they do not even mention using G-1 to set R-1, R-2 and R2A and I would have thought that a special mention would be made for the root rib which is the one that really matters)
For the shear webs, I come from the school that says mechanical reenforcement is better than adhesive so I wanted to put the webs between the spars. For a tapered wing, this even made me question my resolve but with a bit of sanding and testing fitting, I am pleased with the outcome (Photos #2 and #3). What I did was rough-cut, and then sand the length with the second spar removed. I then glued the spar in, setting all angles. I then sanded down the top of each side to get the height.
Question: I have been reading ahead and have a question on the glueing of the root rib. They have you glue the dihedral to the spars and CA the TE spars but they do not mention glueing in between the root ribs? They have you put wax paper underneath but no mention of glueing the root ribs while glueing the braces. This does not make sense to me. Can someone comment on the wing joining procedure?