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Right Flap Hinge Retention

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Alright, with all the excitement of getting the flap on the wing, I decided that I might as well continue with the flap hinge.

Currently, the flap hinge pin hangs out 2 feet on the inboard side of the wing, so let’s get that thing cut down to a reasonable size.

I’m following the method of cutting some hinge eyelets from the middle of the wing/flap and attaching two halves of the hinge pin in the middle. At the end of the last session, I had marked the middle eyelets.

Here's me unbending the two middle eyelst on the wing so I can cut them off.

Where's my file?

Can’t find it. I’ll have to clean those up later.

I cut the hinge pin in half and 90° bent them.

OMG, more toes!

With some careful measuring, cutting, and bending, I got one of the halves right where I wanted it.

Like a glove.

Then matched the other side to that.

Like some other builder’s, I’m going to use the hinge eyelet method of securing the hinge pins.

During this whole process, I kept thinking how easy it would be to drill a single hole in the flap brace and just safety-wire these two hinge pins in, but I couldn’t bring myself to not finish with the original plan. More later.

Two of my hinge eyelets from scrap.

The hardware I’m going to use.

I'm using the 2-lug, MS2169106 (I think that's right) and the AN507-6R6 screws.

There's a nutplate under there.

Rivets set.

The two eyelets are not countersunk or dimpled. I'll eventually need to replace this countersunk head screw with a panhead.

After getting the hinge pins secure, I checked out the outside.

Yikes. I'll definitely need to clean those up.

2.0 hours. Really? That was 2 hours? I couldn’t believe it. Maybe I fell asleep or something. I have a visitor coming this weekend, so maybe I’ll try to prep some flap parts before then so we can bang some rivets while he’s here.

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2 Responses to Right Flap Hinge Retention

  1. Justin Lott says:

    So… no building since January? I’ve gotten a lot of useful info from your blog for my RV-7A… Was just curious :)

    Looking good so far. Keep it up!

  2. Scott Boling says:

    Come on Andrew, where’s the updates. You just can’t leave us hanging like this. Your blog has been extremely useful.

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