January 1, 2007 - Wing Skin Riveting, Trim Servo |
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New Year's Day. My resolution is to fly the RV-7 this year. I
think it's possible if I work hard and stick with it.
I've made the decision not to go the IFR route so eliminates a number of things I would have had to do. Not to mention cost and weight. My engine will be a stock 360, carbureted, so again, nothing out of the ordinary that will require extra effort. Lynnette and I shot the remaining rivets on the right wing bottom outboard skin. They were fairly easy because I had good access to the rivets through the rib holes on the end rib. The rivets came out well and the right wing is done. |
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You can't see my right arm because it's inside the wing with the bucking
bar.
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Looking good! | ||||||
I turned my attention to the elevator trim tab and servo mechanism.
First I mounted the trim tab on the left elevator. I had trouble
getting the wire through until I had the great idea of tapering one end
by filing it a little, then the wire slipped right in.
I gathered all the servo and governor components and instructions and
read through them. I was told by an "ace" repeat offender that the
governor was really necessary with the electric trim so I got one.
I believe it's also necessary if you want to operate the trim with a
"hat" switch on the stick grip, which I am doing.
Regardless, the Governor instructions were very well done.
I'm no electrical engineer but the wiring seems straightforward.
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For the first time, I screwed the
servo and mount plate into the elevator. I had to trim with the Dremel
tool a small area so that the thing would fit in. The plate covers it
up so no one will ever know.
I'll need to trim the threaded push-rod, but I don't want to do that until I run the servo through its full range. With the trim tab and servo on the elevator, the elevators are fairly well balanced -- just slightly nose heavy. The counterbalance weights are just where they should be at this stage of the project. |
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I worked on trimming the HS and elevator fiberglass tips. | ||||||
The trusty Dremel tool is the tool of choice for this job. | ||||||