Prepping trailing edge and wing hinge pins
Hinge pin holes drilled in wing trailing edges. 90º angle drill used to clear the trailing edge root tab
Trailing edge wood is about 1/4" thick hardwood or plywood
Root edges of flaps cut off to allow clearance to make flap removable
Balsa hard points are different shapes on either flap.
Balsa hard point does not touch inside skin of the flaps. Saw cut through the aluminum hinge pin.
Pins marked for cut off to allow fit into the wing
Dremel cut off wheel used to cut hinge pins. The wood is only about 1/4" wide and cutting off the hinge pins allows easier install.