Plan file details
Dragonfly. Rubber cabin sport model.
Quote: "Simplicity is the keynote of this little cabin model, but it has turned in out-of-sight flights. Dragonfly, by Elmer G Powell.
THE Dragonfly is a trim little plane that was designed to provide everyday flight enjoyment; the model on more than one occasion has turned in out-of-sight flights. Because of the excellent flying characteristics, more than a score of this design have been built by members of our model organization. Reproduce the Dragonfly and you will be more than satisfied.
Before starting construction of this model, a careful study of the one-half size plans should be made; knowing what you are about to do will prevent faulty construction. In order to determine any dimension when drawing the full size plan, place a scale over the desired section; note the reading and multiply by two. Now let's begin.
Fuselage: The longerons, vertical and diagonal braces are of 3/32 x 3/32 in strips. Former 1 is made of 1/16 in plywood while the remaining formers are of 1/16 in sheet balsa. The first step is to pin the longerons in place; then cut the vertical braces to the required length and cement in their correct positions. Another side, an exact duplicate of the first, is then made in the same manner. Allow the cement sufficient time to dry before you remove the sides from the worktable.
The sides are fastened together by cement-ing the crosspieces at the widest portion of the fuselage, when referring to the top view. Be sure the sides and crosspieces are square before the cement sets. When dry, join the two rear ends of the fuselage together and cement securely. Now cement former 1A at the nose. The remaining crosspieces and formers are attached at their respective places.
The 1/16 x 1/16 in stringers may now be added as well as the wing mount and the 1/16 in diameter dowel. Bend the landing gear from .040 in wire and attach it to the crossbrace. Carve the spinner from a soft, balsa block and cement it to a 10 in propeller; complete this unit as shown on the plan..."
Direct submission to Outerzone.
Update 08/11/2018: Added article, thanks to Pit.