I finally finished leak testing both tanks this week. Spent a lot of time going over every single rivet, joint, fitting, etc with soapy water to make sure neither tank leaked. After two go arounds with the right tank, it has no leaks. The left tank tested perfect the first time. NO LEAKS! Tanks are *done*. Glad to move on from that.
Started fabricating the flap attach brackets and aileron attach brackets. Also did a test fit of the aileron bellcrank - trying to decide if I should do it now before the bottom skins are on (*much* easier). Discovered I need to ream the brass bushing to size. Need to find out what the proper reamer size is and acquire/borrow it.
Finished deburring and cleaning up the aileron attach brackets and angles.
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| From Right Wing |
Match drilled the aileron attach brackets to the spar.
Outboard aileron attach bracket.
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| From Right Wing |
Inboard aileron attach bracket.
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| From Right Wing |
Match drilled, deburred and riveted the flap brackets to the appropriate ribs.
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| From Right Wing |
The perimeter holes on the flap bracket are left open for the reinforcing angles.
Once the brackets are riveted on, the reinforcing angles are fabricated, fitted and match drilled.
This picture didn't quite show what I wanted - I'm using a long (12") drill bit and you can bend it around a pretty good corner to get at tight spots, which is required for the flap bracket attach angles.
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| From Right Wing |
Here are the angles (bare aluminum pieces) after clamping in place and match drilling.
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| From Right Wing |
