RE: PERIGEE Prototype Kit Build
OK guys. Here we start the wing. I have taken some pictures for comparison of the original ribs and spars along with the new fitted 3/32 lite plywood spars. Like I said when I started this thread this Perigee will not be an exact duplicate of the original. Her lines will remain accurate and she will be eligible for the VRCS Concours event but items like the plywood spars and landing gear ribs have been changed to make them stronger than the original. Unfortunately many of Hal's designs using the balsa spars were prone to folding wings. Seeing how this model can be flown in the SPA and BPA we want to make sure she can handle the extra stresses with the hotter engines. With that said here we go on the wing:
The plywood spars fit snuggly into the rib slots. I elected to use the curved spar arrangement due to design and for appearance when using the transparent covering materials. Notice I used some finishing nails positioning the wing at its proper shape before gluing. Us the smaller nails and put them below the rib line so the top sheeting can be installed while the wing is still securally held in place.
As shown, the ribs and spars have building tabs to insure an accurate and flat wing panel. I suggest sanding the laser points just a bit to get the brown off for a better adhesion of your glues. I generally do this before assembly but I wanted to test the fit of the parts as they came from the laser remember this is the prototype build whereas when I find a mistake it can be corrected before the kit goes into production. I will disassemble, sand and final assemble the wing.
Next I will install the pre-shaped trailing and leading edges. Maybe tomorrow. I am waiting for my balsa order to arrive to sheet the wing. I am considering adding the wing sheeting in the kit already laser cut to these arches to speed up the process but will have to pass it by Dan as this is quite a bit of cutting which increases cost. What do you think?
Bob Harris