Tag Archives: hinges

Finishing the Flaps

Hours: 6

With the ribs for the Flaps out of the way, I am ready to finish the flaps. First order of business is to ensure that I have the ribs all in the right order.
Completed ribs laid out along the right Flap

Once that was figured out, I first clecoed the ribs in place to the bottom of the skins and then closed up the skins and clecoed the top as well.
Ribs clecoed in place to the bottom of the Flaps skin Clecos in place to close up the right Flap

After checking that everything is aligning properly with the skins, I started riveting the skin. The top side is pretty straightforward. For the bottom side, there are a couple of tight spots next to the hinges, so the close quarter rivet wedge came in handy for a couple of the rivets.

Rivets in place Close quarter rivet wedge to rivet the tight space next to the hinge Bottom right side Flap ready to rivet Bottom right side flap almost done riveting

With the right side Flap finished and closed up, I then repeated it all for the left side Flap. There was also a couple of the edges where the hinges sit that needed a bit of deburring attention.
Some deburring was needed for the hole where the hinges go through Upside down view of the left side Flap ribs clecoed in place Almost done with the left side Flap riveting

After I finished the top skins, I did one quick alignment test fit on the wings and everything looked good, so then I finished up both sides by riveting the front rivet lane that closes the skin against the other side.
Front line ready to close up the skins of the Flaps for good Almost done riveting the Flaps Completed left Flap Both Flaps completed

Final alignment check

Once I finished all the riveting, I did one final test fit onto the wings. I used a bit of mason string and my laser level and everything is looking good. Now onto finishing the Elevator.
Final test fitting and alignment checks Final test fitting and alignment checks

Timelapse of building the Flaps

Getting started with riveting the Flaps

Hours: 2.5

With the priming of the Flaps ribs out of the way, I got started riveting the Flaps. First order of business was laying out all the ribs in the correct order.
Flaps ribs laid out in the correct order

After laying out the ribs in the correct order, I started laying out the right hinges to go with each rib. There is one interesting rib that needs to be riveted in two steps as one part goes on top of the other:
Hinge and bracket to be riveted onto the rib Ready to rivet those 3 rivets that will hide under the angled bracket Ready to rivet the bracket on top of the hinge

Once I figured all of that out of the right side Flaps, I repeated the steps for the left side Flaps:
Right side ribs done and laying out the left side

I received the missing rivets for the assembly the other day, so now I was able to finish the riveting all of the hinges to the ribs to actually complete the flaps.Completed ribs laid out along the right Flap