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Layout and
lamination of the rudder trailing edge. First real part for the BF. The
tail feathers were carefully drawn on a 4x8 sheet of plywood then built on
top of the ply. |
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This is the
rudder laid out on the table. The L-shaped blocks are used to assemble the
rudder, vertical and horizontal stabs, and the elevators. Since all these
surfaces are symmetrical and not flat, you have to build them off the
table surface. |
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Here you can see
how the rudder is loaded into the fixture. Once you figure out the
drawings, it's really pretty simple. These are only a small number of the
total clamps you'll need, both 2 and 4 inch. |
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Side view of the
rudder loaded into the fixture. It's all clear now.... |
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Finished Rudder
and first major assembly! |
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This is the wet
bend of the spruce parts for the vertical stab leading edge. Soak in water
for a long time then bend and clamp. When dry, laminate and shape as
required. |
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This shows the
leading edge shaper I made from a razorblade and a 2x4 block. The blade is
shaped to the leading edge shape and the block is split to accept the
blade, then clamped together. This is then pulled across the leading edge
to form a consistent curved shape. The trusty "Workmate" has
proved indispensable and is still around today, none the worse for the
wear. |
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Here's the
vertical stab frame loaded into the fixture. |
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More of the
vertical stab in the fixture. As I mentioned, you can never have too many
clamps! |
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Completed rudder
and vertical stab. A big moment. |
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Here's the
outboard edge of the first elevator being laminated. |
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Elevator
trailing edge glued for laminating. The T/E was a lamination of four
strips of spruce. |
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After the
outboard and trailing edges were complete, the inboard and spar get cut
(routed) and are in the process of being fitted. |
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First elevator
frame in the fixture. |
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Once the major
parts are glued, the elevator is removed from the fixture, joints cleaned
up, and gussets applied. |
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The first
elevator is complete and the second is going together. Outboard and
trailing edges were shaped the same way as the vertical stab. |
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Horizontal stab
leading edge gets the lamination treatment. At six feet, this is the
largest part of the tail assembly. |
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HS in the
process of assembly. You can see that all the tail feather parts are
assembled in the same manner. |
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Another view of
the HS as it progresses. |
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Almost done with
the HS. Just finishing the application of gussets. |
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Finishing the
stab. Note the Dremal tool which proved invaluable. I thing I went through
two of these during the course of the project. |
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Completed tail
assembly woodwork! On to the fuselage! |
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Tail feather
control horns in work. The metal work has been done and the birch ply is
being laminated to the sides per plans. |
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The stabilizers
are mounted for fitting. You can also see the hinges that are used.
Instead of using the machined parts called for in the plans. I substituted
AN eyebolts which have proved to work well. |