CH-640 Fuselage Hull - Stage One (21 of 206)


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Make two simple wood jigs. The lenght of the jig should be 1076mm as shown on drawing 640-F-20. I made a jig with a center section that slides into the center spar and the 1076mm part can slide forward and back. Then I moved the 1076mm long part so that it was 618mm from the inside of the center spar to the rear of the jig. Then I secured it in place with screws. The center part of the jig is bolted to the center spar.
Make two simple wood jigs. The lenght of the jig should be 1076mm as shown on drawing 640-F-20. I made a jig with a center section that slides into the center spar and the 1076mm part can slide forward and back. Then I moved the 1076mm long part so that it was 618mm from the inside of the center spar to the rear of the jig. Then I secured it in place with screws. The center part of the jig is bolted to the center spar.


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