May 31, 2009

Aileron trim

Category: Center fuselage — Steffen @ 17:15 — Hours: 7

The weather has been absolutely great here the last two days, so a little bit of gardening was in order. I did get time for some RV quality time as well, but the in-laws came by last night for some BBQ, so I didn’t get time to update my site.
Yesterday I started out preparing the parts for the electric aileron trim.
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First I had to modify this trim block that will hold an control arm.center-fuselage-045-400x

I had to chamfer one edge, to make it sit nicely into the bracket.
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I drilled two holes using my drill press…
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Finally I made a notch, that will allow me to install a cotter pin into the trim control arm.
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I trimmed the bracket to length & deburred all the edges.
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Then I marked a line, and aligned and drilled it to the seat floor pan.
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Then I bolted it to the center seat ribs, and drilled another two holes. This was as far as I got last night. 🙂
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After drilling the holes for the plastic trim block and the nutplates, I countersank the block hole…
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…and the nutplate holes.
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A little deburring..
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I had to find the neutral position of the trim servo. For that I used a 9volt battery.
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Then I could put the whole trim assy together, so I could mark the position of the trim servo.
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The assy in place, I fixed the servo to the rib with tape.
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Then I carefully removed the rib and drilled the servo to the rib.
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Now it was time to do the final hole deburring and surface scuffing. I also had to countersink various holes for nutplate rivets, like these ones on the seat belt brackets.
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The baggage area ribs ready for primer.
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I had to drill the outer seat rib nutplate holes.center-fuselage-061-400x

I managed to deburr all the baggage area ribs and about half the seat ribs today. I’m hoping to finish tomorrow, and get everything primed as well.

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