Sequoia Aircraft Corporation F.8L Falco, Construction Manual

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F.8L Falco Construction Manual 10–12 Revision 4, March 1, 2002
Figure 12
For many of the wing ribs you can use the rubber bands to clamp the ribs in place. These are the
“open” ribs; that is, they do not have plywood glued to the face of the rib.
To clamp a corner block in place, the method shown in Figure 13 is most often used. The
clamping blocks will try to slip, so you can clamp a couple of blocks in place to keep them from
moving, or you can drive a couple of small nails through the clamping blocks so that the ends of
the nails will stick out slightly and bite into the wood.
Figure 13
Figure 14 shows a method for clamping a trailing edge strip in place. The nails are for rubber
bands. If this type of clamping block is positioned right over the rib, you will end up gluing it as
well, so you can use some wax paper to keep this from happening.