Began work on Fuel System (Section 31)

Took a break from riveting the the fuselage together. Jared’s lending me his engine-stand-fuselage-rotisserie. So I’ll wait until he drops by next weekend to finish the riveting. It’ll be a lot easier if we can roll the fuselage on its side.

So… Got started on the fuel system tonight. Picked and inspected all the parts.

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Separated the fuel line brackets and riveted to the cover ribs.

 

 

Disassembled the fuel selector valve. Oriented the fittings per the plans but couldn’t screw them in because I didn’t have the Loctite 648 that the instructions called out. Ordered some from Amazon. I riveted nut plates to the flanges of the valve. Finally I machine countersunk the screw holes in the face plate.

 

 

Crimped the connectors on the leads from the fuel pump. Added thread sealant to the fuel filter fitting and screwed it into the pump. Mounted the pump and filter into the into the fuselage.

 

 

Attached the AN elbows to the firewall and fuselage sides.

 

 

 

Today’s Time (hours): 3.0
Fuselage Time (hours): 136.0
Total Time (hours): 590.5

Began work on Aft Fuselage Attachment (section 30)

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This section only has a few parts and I was setting up to prime all the parts for section 29 so figured i’d get these while I was at it. Picked and inspected the parts. Cut apart the ones that needed to be separated on the band saw. Deburred all the edges. Scuffed and primed everything.

 

Today’s Time (hours): 1.0
Fuselage Time (hours): 84.0
Total Time (hours): 538.5

Completed most of the fabrication steps

In case you haven’t noticed, I’ve settled into a strategy for most sections of the build… First I pick, inspect, and peel all the parts for the section. The I take a first pass through the instructions and perform all of the steps that require cutting, grinding, bending, etc. Then I deburr, scuff, and dimple all the parts. Then I prime everything. Finally I assemble and rivet everything. I’ve found this approach is much quicker then going step by step in the order of the instructions. I can set up the shop and tools for each operation and reorganize after each operation. I kind of get into a groove with each of the operations and avoid frequent tool changes. I also only need to set up for paint, which is a major operation, once per section.

Today I was focused on fabrication steps… I started with the upper longerons. I cut and trimmed according to the plans. The fabricated a couple of clamping blocks that allowed me to secure each longeron in the bench vise and clamp a lever to the end in order to bend a 10 degree twist into them. Finally I clamped and clecoed the upper engine mount brackets to the forward end of the longerons and match drilled them.

 

Drilled and cut the lower longerons and match drilled them to the lower engine mount brackets and longeron doublers.

 

Fabricated the hinges that will attach the cowling to the firewall.

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Separated a whole bunch of parts. Unfortunately my bandsaw blade gave up the ghost early on and I didn’t have a spare. So I used the snips for the thinner aluminum and the Dremel with a cutoff wheel for the thicker parts. A little bit slower but not too bad.

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I managed to lose a part somehow. I turned the shop upside down and couldn’t find the F-01422 Fuselage Side Ribs. I checked it off on the inventory. No idea what happened to it. Ordered a new one from Van’s.

 

Today’s Time (hours): 5.0
Fuselage Time (hours): 80.0
Total Time (hours): 534.5

 

Completed Forward Fuselage Lower Structure (Section 28)

Applied a bead of tank sealant to the bottom flanges of the muffler shroud sides and riveted them to the forward skins. Riveted the muffler shroud ramp to the sides and added a fillet of sealant to the bottom of each seam.

 

 

 

Positioned the firewall assembly on the forward skins and muffler shroud. Added sealant between the skins and firewall and around the curved area where the muffler shroud connects to the firewall and clecoed everything together. Riveted the cover bases to the skin. Riveted the curved part of the firewall to the muffler shroud sides and ramp.

 

 

 

Riveted the firewall angle to the firewall and skins. Dimpled the cowl places and shims and riveted them in place.

 

 

 

Riveted the tunnel sides to the skins and muffler shroud.

 

 

Riveted the routing bracket and fuel selector bracket in place.

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Riveted and bolted to forward center section bulkhead to the tunnel side. Riveted the skins to the cover ribs.

 

 

Sealed and screwed the firewall penetration fittings to the firewall.

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Fabricated and assembled the cabin heat vent assemblies. Then riveted them in place on the firewall along with their control cable brackets.

 

Machine countersunk the battery box attach holes and riveted it to the firewall.

 

Dimpled the cover panel and riveted it to the forward flanges of the cover ribs along with a gazillion nut plates.

 

Forward Fuselage Lower Structure… Done! On to the side structures!

 

 

Today’s Time (hours): 8.0
Fuselage Time (hours): 73.0
Total Time (hours): 527.5

 

Completed forward mid fuselage bulkheads (Section 25)

Received the new bulkhead bars from Van’s. Cut and deburred them. Scuffed them, Machine countersunk and riveted them. Reamed all the holes and bolted them to the aft bulkhead.

 

Today’s Time (hours): 2.0
Fuselage Time (hours): 22.0
Total Time (hours): 476.5

 

Began work on mid fuselage lower structure

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Picked and inspected all the parts. There are a lot of them.

 

Cut all the parts that needed to parted using hacksaw, bandsaw, and Dremel. Pro tip: peel the parts BEFORE you cut them. Otherwise there are a lot more of them to peel. Duh!

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Peeled all the parts.

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Ready for edge deburring.

 

Today’s Time (hours): 3.0
Fuselage Time (hours): 16.0
Total Time (hours): 470.5

 

Cut, deburred, and scuffed mid fuse parts

Peeled the blue vinyl from all the parts.

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Cut the parts that needed to be separated on the band saw.

 

Deburred all the edges and scuffed the parts.

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Ready for priming. Plans call for reaming several off the holes to .311″. I didn’t have a .311 reamer so ordered that from McMaster. Should have it by next weekend’s build session.

Today’s Time (hours): 3.0
Fuselage Time (hours): 3.0
Total Time (hours): 454.5

 

Pitot mast fit and all remaining wing parts prepped for primer and assembly

Cut, deburred, dimpled, and scuffed all the remaining wing parts to prep for priming. This included the aileron trim, the aileron push tubes, the inspection covers, and the wing tip ribs.

Fabricated a bracket to secure the pitot mounting bracket to the wing rib.Drilled the holes in the mounting bracket to match the holes in the rib. Then match drilled the new rib bracket to the mounting bracket and the rib. Match drilled everything to the skin and cut out the hole for the pitot mast using 1/2″ drill, Dremel, files, and sand paper. Pleased with how everything came out. Should be nice and secure once everything is riveted together.

 

Dimpled and scuffed the skins. Everything is ready for primer and assembly.

 

Ordered avionics and hoping to get the A/P servo, pitot tube, and magnetometer installed before closing up the wings. I also ordered tubing for the AOA line and wire for the pitot heat. Hopefully I’ll have everything and be able to get the wings buttoned up next week.

Today’s Time (hours): 6.0
Wing Time (hours): 239.0
Total Time (hours): 391.0