I am moving on to the tail section. This will turn my attention to the next complex building task as wel as complete another area of the fuselage that will help assess overall weight and CG for balance. The tail section is built out of laminated balsa, something I have never done before. I consulted several good YouTube tutorials and a friend at the club. I started out with building the templates from foam (two layers glued with Elmer's glue) that were accurately cut according to the plans: I wrapped the template with clear plastic (Saran Wrap) and pinned it to my building board. I soaked five strips of 1/32" thickness balsa cut to 5mm wide in boiling water for about 20 minutes and wrapped them around the template with PVA wood glue between the layers. I let this dry for 24 hours: After the glue was thoroughly dry I unpinned the lamination: Now I can build the fin and rudder strictures: I repeated the same lamination steps for the two laminated sections of the elevator and h...
Each wing panel needs to have a 1.5 degree washout that is built in with a 3/16" shim at the TE of the outer most rib. I so happens that the building magnets I use are exactly 3/16" think so this helped, and all I needed to add where a few shims along the TE. To get the washout locked into the wing shape a followed advice in an RC groups article. First, build the TE, ribs, and bottom spar on flat surface. Next, raise the structure per washout requirements and build in everything else: webbing, top main spar, sub-spar and LE. After both wing panels where complete I turned my attention to building the aileron. These had to be cut out from the built wing and rebuilt with a new LE and TE. I made sure to mark the cut lined on the relevant ribs before gluing them into the wing:
I had a few ideas for hinging including thread-stitched hinges, covering film, etc. Since I will be using Esaki Japanese tissue I decided to use traditional nylon hinges instead of follow the building article with iron-on film and film hinges. The tissue and dope method is one of my favorite ways of covering, it is both old-school and helps bring out the beauty of balsa built models rather then covering them with opaque film. Covering side-bar: Here's a test square I made with Esaki tissue from Peck Polymers that I purchased for the Velie Monocoupe since they have the blue and orange colors I wanted. The square is 120x100mm and the net weight of the cover is about 1gr: Back to aileron hinges. The new LE and TE for the ailerons was not thick enough for the hinges so I built out the area with two 1/16" balsa strips that will hold the hinge between them. The first layer is glued 1/16" below the top so that the second sheet is flush with the top of the rib: I marked the hing ...
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