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RV-7A Tip-up QB build project
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Date: 5-15-2012
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Number of Hours: 8.00
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Manual Reference:
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Brief Description: Canopy shroud disassembly and prime
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With the braces fitted by bending all the tabs to fit the frame channel and tube in the proper locations, and the braces, fillets, attachments and clasps having all fitted, match-drilled and matched, I again disassembled the canopy shroud frame from the skin and the brackets and braces and began to prep for prime each part. I removed the clecos from the brackets on the frame assembly holding the forward halves together and also from the hinge pins at the attachment to the frame halves. I prepped all the metal inside and out, all hidden edges and conrners and undersides and insides by rubbing down with scotchpad and using thinners where necessary to clean the metal of corrosion, stickers, glue etc. I also filed down the sharp and burry edges and sanded lightly the welds to get some of the bumpiness away, after a thorough prep I cleaned everything with silicone remover as per usual and then washed with soap and water. I repeated the process opn the skin and all the loose parts. The panel was also prepped but for the inside edges of the cutouts which will require adjustment for the fit of the avionics units when the finally arrive.
Once ready I began spraying a standard mix of primer on to the many parts, starting with the skin inside and all the rivet lines on the outside, I gave everything a very light first coat and then a second, final covering coat and got a great primed finish of all the metal.
The now primed panel was re installed in place and then new control knob bracket (manufactured last week) re installed on the panel, the cables were re attached to the forward bracket and again gathered and saftied at the firewall and into the engine bay. Then the various shroud parts were prepared for assembly (paint removed from holes etc), the skin laid face-down and clamped level on the tabletop by propping up the ends as before and the frame laid on top of it for assembly. Again I started with the ends and started clecoing the skin by pulling in to place and securing.
With the ends cleco'd and in tension
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