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Jun 09, 2021 6 Wing Sweep Testing,Pitot Tube Fit Check and More Category: Wings
Installed the wings on the fuselage today for two main reasons: wing sweep clearance check and pitot tube clearance with the wing strut. There were builders on the Kitfox forum who ran into issues where the butt rib interfered with the wing as it was swept back and they had to trim the butt rib to get it to clear. So we mounted the wings and then VERY slowly swept them to a position where they were actually over-swept a bit (normal sweep has 8'6" between the two leading edge wing tips and we were right at 8' 1"). Happy to report that even with the over-sweep I did not have any interference issue. Yes there was a happy dance and no there are no pictures.

The Kitfox forum also has reports of the pitot tube being damaged by persons as they walk around the aircraft (lookie-loos) and run into the tube/mast. The instructions have the tube located just outboard of the wing strut. The damage normally is to the wing mount for the mast and requires some pretty major repair. I decided to place my pitot tube inboard of the wing strut to provide it some protection from this issue. I had measured twice and all but had never set the mast and pitot tube in the wing with the wing mounted. Happy to say that the tube clears the wing strut by over three inches and is now well protected.

The next step in the wing build is to fit and epoxy the fiberglass leading edge fairing. Started sanding the capstrips and make sure rib forms correctly to the leading edge. This is one of those steps that isn't really hard but needs to be sure it's done right. So I am working the ribs now and once that's done, will begin fitting fairing.


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