Dimpled left top wing skins

Removed material from the corners where they overlap and butt up against the tank skin so that they’ll lay flat. I used 60 grit sand paper. Then deburred all the edges of the skins and wing walk doublers. I deburred all the holes I drilled in the doublers too.

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Dimpled the skins with the DRDT-2.

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Made it through both left wing skins before my arm got tired.

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Today’s Time (hours): 2.0
Wing Time (hours): 73.0
Total Time (hours): 284.0

Drill and countersink inboard top skin and wing walk doublers

Match drill #40 rivet holes for nut plates along inboard edge.

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Final drilled #19 the screw holes and dimpled the one furthest aft.

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Final drilled #40 and countersunk all of the holes in the skin that are common to the wing walk doublers.

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Disassembled everything.

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Today’s Time (hours): 2.0
Wing Time (hours): 71.0
Total Time (hours): 282.0

Riveted rear spars to ribs and started on top skins

Riveted the rear spars to the wing ribs. I tried to use the squeezer but it was cumbersome with several different rivet sizes and with the flanges in the way. So I switched to the gun. This was much easier.

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And of course, no section is complete without a few mistakes. I used the wrong size rivets in ribs behind the doublers. I used 4-4’s and needed 4-5’s the shop heads were too thin to be acceptable. So I drilled them all out. Nine rivets in total. I couldn’t punch the rivets out because there was nothing to back them up when I hit them with the punch. So I had to drill them all the way out. I was super careful but the holes are enlarged ever so slightly. If this wasn’t a critical structure, I’d probably just re-rivet it but this area carries the load from the ailerons and flaps. So I’ll go with a larger river to ensure structural soundness. I order some -5 rivets, a #21 drill, and a 5/32″ rivet set from Spruce.

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I clecoed the wing walk doubles and inboard top skins to the spars and ribs.

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I also put in an order with Van’s for some fuel tank sealant.

 

Today’s Time (hours): 2.0
Wing Time (hours): 69.0
Total Time (hours): 280.0

Aft Fuselage Complete!

My replacement cover plate arrived from Van’s. I deburred it, broke the edges, and dimpled the correct side this time! I’ll prime the inside next time I shoot primer.

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We riveted the top skin in place. We moved the fuselage to the floor and Remy crawled inside and bucked while I shot.

Still looks more comfortable than a Delta coach seat.

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And that completes the aft fuselage!

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All that’s left is fitting and drilling the horizontal stabilizer and elevators and a bit of fiberglass work on the tips. Then the entire empennage kit will be complete!

Today’s Time (hours): 3.0
Empennage Time (hours): 186.0
Total Time (hours): 186.0

 

Riveted the top side skins

Clecoed and bolted the vertical stabilizer to the aft fuselage and match drilled the upper attachment holes.

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Rolled the aft fuselage on its side to rivet the top side skins.

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Finished riveting both top side skins to the aft fuselage.

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Clecoed the top skin in place.

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Tomorrow I’ll rivet the top skin and that will complete the aft fuselage.

 

Today’s Time (hours): 3.0
Empennage Time (hours): 183.0
Total Time (hours): 183.0

 

Vertical Stabilizer Complete!

Scuffed and prepped the new parts. Then sprayed them with primer.

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Riveted the doubler and ribs to the forward spar.

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Clecoed the skin to the forward spar and ribs and started riveting.

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Finished riveting the skin to the forward spar and ribs.

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Clecoed and riveted the rear spar to the skin and ribs.

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VS Complete! Very pleased with how well it turned out. Once I replaced the parts I messed up, everything went smoothly. I’m much happier with my workmanship than the first attempt. A little experience makes a world of difference.

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Rearranged the work benches and started picking parts for the horizontal stabilizer.

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Today’s Time (hours): 3.0
Empennage Time (hours): 46.0
Total Time (hours): 46.0