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13. Before beginning the next assembly process, take a few minutes with your sealing iron
on a medium heat setting and go over all seams, paying special attention to thin trim
stripes and the seam at the leading edge of the wing. If there are wrinkles in the covering
on the leading edge sheeting use a heat gun with a 100% cotton t-shirt to remove them and
prevent digging into the wood with an iron. Use caution and avoid excessive heat as you
may cause the Ultracote to shrink too much and lift at the seams. Also take the time to seal
the hinge gaps with Ultracote or Blenderm tape. Clean the wings with Windex and put
them away.
Rudder horn installation
14. Locate the rudder, the rudder control horns and the 2 slotted base plates. Use a sharp
#11 blade to remove the covering from the 2 pre-cut slots in the rudder. Trial fit the 2
rudder horns through the slots in the base plate and into the slots in the rudder. Trace
around the base plate with a fine tip felt marker. Remove the control horns and cut away
the covering from the area where the base plate will mount as done previously with the
aileron and elevator. Mix up some 30 minute epoxy and use a small blade to fill the 2 slots
with epoxy. Use plenty of epoxy and be sure to completely fill the two slots. Use an epoxy
brush to completely cover the areas on the rudder horns and base plate that will glue into
the rudder. Slide the rudder horns back into their proper position and immediately wipe
the excess epoxy from the horns. Repeat this process on the other side of the rudder.
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