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RV-9A: Forward Section - 2/19/2009
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Making the F-996C reinforcement anglesMaking the F-996C reinforcement angles
These angles provide added strength and a place for the wing tank attach bracket to bolt on to. Before making these guys, I checked a number of other builder websites and just about all of them had remake these parts over and over again. But I really didn't understand why until I did it for myself. I made two angles, both 5 3/4 inches long and drilled all the holes except the bottom one like the instructions said. Then when I tried to cleco the angle to the fuselage using the hole in the side skin the angle hole was off, WAY off. It was so out of alignment that I had to trash the angles and start over. After I made new angles, I used the holes in the skin as a guide to drill the holes in the angle pieces. Here in the picture you can see just how "off" the drawing is. Note: My camera has a goofy wide angle lens which makes the angle piece look bigger than the drawing, but it's not.
Here's the measurement between the holes in the skinHere's the measurement between the holes in the skin
Here's the measurement between the holes on the drawingHere's the measurement between the holes on the drawing
To get this length, I used both the drawing lines and measurements on the drawing. Now I'm going to have to figure out whether the F-996B spacers I made are off as well and also try to figure out if the holes in the drawings are mis-marked on these pieces as well. Stay tuned...
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