In step 5 lines are drawn on the bottom of the foam material which was cut in step 4. The bottom side is rougher than the top side of the Raft-R-Mate material (if there is no difference in surface roughness use either side). The air foil shape pattern is created on the bottom side. Draw a dot midway down the center line. Then draw a dot between the middle dot and the leading edge and finally a dot between the 2nd dot and the leading edge. Repeat this same process about 75% towards the wingtips of each wing. Connect each middle dot with a straight line. Do the same for the dot toward the leading edge, forming 3 parallel lines on each wing. Each line will be thermoformed into a bend to create an airfoil for each wing.
For more information about other walkalong glider designs and how to fly models by controllable slope soaring see:
http://sites.google.com/site/controllableslopesoaring/
@rcplanetim53 correction: maybe?
denson123123 1 year ago
that pen was trying to give you a hard time!!! next time try a pencil mabe?
rcplanetim53 2 years ago