Learning to Fly: The Wright Brothers Adventure pdf - ER - NASA

2. Using the templates as a guide, mark thelocations of the rib lines on the tops andbottoms of the wing and elevator sectionswith the ultrafine-tip black marker. Maketwo sets of marks, one on each edge. Connectthe marks to make the rib lines. Make a ribtemplate from a manila folder to draw the riblines (so the end of the template can be bentto conformto the rounded shape of theStyrofoam).2.3.3. Cut out the center of the lower wing (only ofthe lower wing) as shown by the dotted lineson the template. Cut two toothpicks in half andsharpen the cut ends of three of them. Dip theends in glue and stick them in the cut edges tojoin the lower wing halves, leaving a .6-inch(1.5-centimeter) gap between the halves. (Ifthe Styrofoam is thin, glue the toothpicks tothe underside of the wing instead.)3.Learning to Fly: The Wright Brothers’ Adventure EG–2002–12–007–GRC49