Hi. i have just covered my Chipmunk and when i have come to attach the wings the angle of rib one is giving a dihedral of almost two inches each side the plan states the dihedral should be 11/16 ths, as rib one is attached to W4 which has a set angle this seeme very strange and is miles out, has anyboy else had this problem and how did you fix it, good job i did not glue the wings on and then check the dihedral.
Thank you for any help Skyjet