Section 41: Wing Attachment

Rv14 Build September and October

Wing Attachment

Since Im not ready to mount the wings there is only a few things I can do in this section. I primed the wing walk gap covers.

Prime the support for the wing walks.

Riveting on the supports

Done and done, keeping the different support in the correct location proved to be challenging. I wish I was more careful in labeling when priming.

Found out these holes are not countersunk or dimpled on the tank to install the wing gap fairings so I had to do that.

Making the pushrods for the flaps.

Flap pushrods.

Ive decided to buy these from aircraft specialty. They have a mod to change these and add fuel filters in the wing area for easier service and to have a seperate filter on each tank.

Bending the vent lines. Had the plans printed to the proper scale, that should help with the fit.

Still haven't figured out the bender perfectly, but I was able to get these bends to scale.

Finished vent lines.

Section 41 Wing Attachment 9.5 Hours

Section 61: Canopy Harness

 RV14 Build October

Canopy Harness

From other post I found it was a good idea to wire the Canopy Latch switch during the canopy build process. So these were already in place for the wiring.

You can see the coiled wire at the front of the canopy assembly.

So definitely optionally added more work for myself here. I didn't like the way the wire were planned to run from the defrost fans. So I removed the stop wires and soldered in #22 and spliced with a solder sleeve the ground from the vans into the ground from the canopy switch. I also spliced the power wires together in a more logical way so there is just 1 power for the fans, 1 ground for the fans and the canopy switch, and 1 switch signal/power wire.

All I need now is the LED light strip to wire in and terminate the ends into the molex.

Section 61: Canopy Harness 3.5 Hours

Section 33 Rudder and Brake System, Parking brake

RV14 Build October

Section 33 Rudder and Brake System

I decided to install a Matco parking brake. I started with the cable to see how much control throw I would have.

Then put the valve o nte bracket and started to imagine how to mount it up. The L bracket it something I added during the build knowing I might install a parking brake.

This was the basic bracket mount that I came up with.

Its getting real, cut the tubes from the kit to install the valve.

Ordered some new tube components.

Started to measure and cut the tubes to length and installing end fitting and into the valve.

New lines are installed valve and ready to go into the airplane.

Valve temporarily installed to check the 3D mounting plate. You can see the black plastic below the valve. I had to reinforce it with fiberglass for now till version 2 gets printed.

The lines come from the left side brake cylinders into the Matco valve, then to the respective sides on the firewall.

All I need now is figure out the mounting bracket and the cable. This is the 3D bracket before I reinforced it with fiberglass. Gonna print another version that is more rigid.

Section 33 Parking Brake 2.5 Hours

Section 18 Fuel Tank Repair

RV14 Build September & October   

Fuel Tank

Just to recap, I dropped the wing and damaged the fuel tank and is caused a leak.

Luckily for me the tank was just repaired and the repair patch was right above this, so i drilled it out so i could remove sealant on the inside to reseal. This allowed me to inspect for damage as well and I found what looks like 2 tears in the metal down in that same corner.

I decided I am going to replace the part and possible the aft inboard tank rib as well. First things first, time to drill out the parts, CARFEULLY so I dont mess up the skin.

After drilling out the parts and getting a much better look at the support bracket It doesn't look town afterall and that was surface scratching possible from the plastic scraper I used to dig out the sealant. The skin in the corner where that rivet I drilled out was however was cracked in the dimple so I'm going to drill that up a size and put in an oops rivet.

Primed the new brace, only on the side outside of the tank.

New brace is riveting pro-sealed in and about to get riveted. I didn't need to use the oops rivets after all. But now I have them for the future if needed.

Made sure to tighten the vent line and added pro-seal around the fitting just to make sure incase the rotation loosened the old seal.

I forgot to get sealant between the nose rib and the new brace so I loaded the seam on the inside and outside of the tank to compensate.

Adding sealant to every possible place it could leak.

Sealant is done, just need to cure so I can test it.

Looks like I FINALLY have leak free tank again.

Installing the tank back into the wing. This time I'm not going to worry about the screws on the top of the wing until the wings come out of the cradle for install.

Reinstalled the torque tube and aileron pushrods.

Other end of the aileron push rod.

Fuel Tank Repair 15.0 Hours

Section 18 Fuel Tanks

 

RV14 Build October

Fuel Tanks

To recap. My left wing fuel tanks was leaking when I tested it. I determined it was leaking from between the skin of the Aft inboard tank rib and the VA-141 fuel flange.

Testing the tank.

Leaking.

After talking with Vans they had me ship it back to them and they performed the repair. I received the tank back relatively quickly and tested it again just to be sure.

Matt made a shipping crate out of the crate the wing parts came in, nice to recycle!

The repair patch Van's had to cut and install into the tank.

Not a great picture, but I endescoped the vA-141 flange to see the repair and it looks like they added more sealant around it.

The tank tested well and Liz and I went to install it into the wing. Before I did I was reading in the plans and noticed the wing walk gap is dimpled but the holes in the tank attach bracket aren't. I spoke with Vans and they are supposed to be countersunk , but its not in the plans at all.

Quick countersinking while testing the tank.

There is a lot of screws and torquing the AN3 bolts takes a while, especially when you don't set the torque wrench correctly and strip 2 of the AN3 bolts. But we did it and finally got a working tank installed and reinstalled the push rod.

I got smart this time and installed the torque tube while installing the tank. It is WAY easier this way. I can move the torque tube up and down enough if I take out 1 set of bolts to install any washers that I might need.

This is where things took a nasty turn. I was using a ratchet strap to hold 1 end of the wing in the air while removing the work bench so we could put the wing back into the cradle and the ratchet strap unhooked itself and the wing dropped about 4 feet. The newly repaired and installed tank took most of the impact with the lower arm of the tank attach bracket assembly absorbing most of it.

Obviously my hart dropped with the wing and part of my soul died it felt like. But we removed the tank to inspect it and the wing. Thankfully the tank took everything and the wing looks undamaged. I was able to bend the flange back into alignment where the wing walk skin matched up.

There was 1 rivet in the corner that I was worried about so I drilled it out and re did it. I also added some preseal under the flange before riveting and then sealed the whole area.

After the proseal dried I tested again.......and it leaks. When the flange bend it separated the seal between itself and the skin.

For more on this saga look for the fuel tank repair post.

Fuel Tank 8.5 Hours