Building Tips and technical articles. > Building techniques

Vertigo II Build

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Don Jenkins:
Time to start on the wing.  I obtained an SV foam wing from Randy Smith about 6 or 7 years ago and decided to use it for this build. I've only built one plane with a foam wing, and it sure does cut down on build time.  I sanded the trailing edge with a 3 foot sanding bar to ensure it was true, sanded the center sections for a squared fit, installed the controls and epoxied the 2 wing haves together.  Seems like it came out straight!?

Don Jenkins:
I used 2 ounce glass cloth and 30 minute epoxy on the center section and cut the flaps from a decent light weight piece of 3/8.  I ordered some wood for this build from National Balsa requesting "Aero Light", and although pricey, it was good quality.

Don Jenkins:
Wing tips are next.  I glued a stack of balsa together (tack glue the center) and sand to rough shape with 80 grit on a sanding bar. I leave about a 1/16 inch larger than the wing, then split them in halve which makes hollowing them out easier.  Install the slider and weight box then glue them to the wing.  Then sand to final shape. I keep my vacuum close at hand while sanding that much balsa.

Don Jenkins:
Rough sanding complete.

Don Jenkins:
I took this photo before final sanding and cleaning up the inside of the tips.  I was able to remove a bit more wood to save a few more grams of weight.

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