What are the primary advantages/disadvantages of this type of construction over that of balsa or Obechi sheeted wings?
IMHO – advantages: time, cost, less finishing work, lower weight (esp. on chuckies). disadvantages: I’ll let you know when I find some;-) 7.5.1 Advantages over built up construction 7.6 Wing incidence >I am trying to set up the incidence on the wings for my Shadow 120. This is a typical ARF with presheeted wings, wing rod hole and incidence hole pre-set in the wing, and the wing rod hole pre-drilled in fuse. My job is to drill two matching incidence holes in the fuse. I tried it once and it came out wrong. Yes, incidence is VERY important on 120 inch sailplanes since the thing had a hard roll tendency which was difficult to correct. I am trying to correct the situation and I am interested in some good hints on how the pro’s set up these small holes. >thanks for any help. > >Joel If you have one, a Robart incidence meter (glorified level) can be used for the job. Otherwise you can make a sighting jig that will do the job. 1) Take the wings (off the fuse) and a short piece of 1/2″ tubing
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