We started working on the Left Wing Trailing Edge. First, using a fine saw we cut away the top and bottom rib cap strips in line with the rear face of the rib web. We had to use a straight edge to keep the saw blade square, otherwise it was difficult to keep the saw blade straight. Two pieces of pre-bent aluminum trailing edge material was fit on the wing trailing edge with the two pieces butted up tightly in the middle over a rib spare cap. The two ends were marked and the excess material was cut off. After filing and deburring the material the two pieces were clamped onto the wing trailing edge.
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| Trailing edge material clamped in place |
Hole locations were marked and first drilled with #40 bits followed by #30 bits. Once all the holes were drilled everything was disassembled and all the holes were deburred. Since the assembly manual calls for countersunk rivets, the aluminum trailing edge piece was dimpled and the rib cap strip was countersunk. A liberal amount of Hysol epoxy was used where ever the aluminum mated with the rib web and cap strip. The trailing edge aluminum was placed on the wing and aluminum 1/8" countersunk rivets were installed.
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| Trailing Edge Attached with Epoxy and Rivets |
After allowing the Hysol epoxy to setup for 30-40 minutes, the excess epoxy was smoothed to form nice transitions and fillets. Hours: 3
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| Smoothed Epoxy Transistion |
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