DRG (Dihedral Root Gauge) redone as per Ken’s modification. Main and rear spars measured and marked for the Dihedral Angle – Bottom edge of gauge tight against the spars and wing sheeting while ‘Rib W2’ edge of gauge tight against rib W2. Pencil mark at location where the outside face of rib W1 will be installed.

W1 rib slid into place. Placement and angle test-fit with DRG upside down as instructed, to keep rib tilted at the proper dihedral angle.

Decided to go back before gluing and check and mark the DRG angle of the L.E and T.E, so that I have some mark in the front and rear of the wing panel to better judge the placement of rib W1. Now let’s go back and try to glue it in again.

Rechecked the tilt (dihedral) angles one last time before the glue dries. Instructions call for thin CA to be applied to rib W1, but I am using Titebond II in case something shifts I have about 30 minutes to adjust it. This is a crucial part of the wing construction so I do not want to mess this up. Looks good so letting it dry while I read ahead in the booklet and plans.

Photo 1 - Front top and bottom main spar marked; Photo 2 - Balsa rear top and bottom spar marked;
Photos 3, 4 & 5 - Tilt (dihedral) angle measured, looks good; Photo 6 - DRG marked at L.E;
Photo 7 - DRG marked at T.E; Photos 8, 9 & 10 - Dihedral angles checked again before the glue dries.