The wing spars were rather simple to complete. Once the frames were completed I glued the plywood sheeting on them.
My crew of cheap labor had a great time removing staples.
I then feed the spars through the table saw to cut the angle in the top of each spar.
Lastly glued the RS-561 center gussets in place.
The root gussets are not glued on at this time, they are added during wing assembly.