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Posted: Mon Aug 14, 2006 12:03 pm Post subject: Installing the middle top skin on the 601XL |
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To David Glass and others interested:
I have two strong recommendations, based on my experience with the 601HD fuselage. First, trim the middle top skin to end at the rearmost tubular frame. Skin the area between the tubular frames with a pair of skinny triangles spliced at the top. This eliminates any problem of the two tubular frames having slightly different contours. Also, it is much easier to form the base of the skinny triangular piece around the curve of the longeron. Perhaps even more important, if you aren't satisfied with your first try at it you don't have to replace the entire skin, just that small piece.
I had very poor luck trying to curl the skin edge around the forward tube. I ended up cutting a wide notch between each rivet location and curling the resulting tongues of skin around the tube. This provided a satisfactory appearance, but were I to do it again I wouldn't worry about curling the skin at all. Rather I would let the skin edge project forward and protect it with a U-shaped rubber molding. Aircraft Spruce's catalog P/N 05-01400 would be my choice. I believe I have seen this on a factory demo airplane. Perhaps someone else can confirm this.
I have a clear photo of the middle skin clecoed in place, showing these mods. I would be happy to send a copy, if you are interested.
George
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