ORIGINAL: carrellh
The second page of the PDF says use CA or wood glue (your choice) unless otherwise noted.
A few steps that specifically mention using epoxy:
44, 47, 51, 52, 54, 55
I noticed a step somewhere that specifuically mentioned using CA but do not see it now.
I remember seeing CA in there too.. I think it has a pic with the bottle too.. haha
I read that part about choices, just always curious if someone has found out the "hard way" that a certain step should have been changed in the plans... Now after a few others have said to use the Epoxy on the wing spars, I wish I would have went with my 1st instinct and used it there no matter what the plans said... I guess will see what happens.