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Building Integrity
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Date:  5-16-2012
Number of Hours:  8.50
Manual Reference:  ch 17
Brief Description:  Installing pitch trim system

This project looks simple but was one of the longest to complete to date. I really didn't like Rutan's idea of using "safety wire" to attach the spring and cable assembly. I just thought it was a sloppy way of making a connection. Some of the expensive titanium and composite hardware from my RC days came to mind and it's REALLY paying off! This setup allows a VERY quick release via pin for canard removal but also adds the ability to adjust the tension of each spring individually making a very smooth and accurate trim lever. Not to mention the ease of tightening the wire when things break in and start to wear. Now I will begin fine tuning it but that will have to wait for tomorrow.
Finally I set up the throw template and verified I was getting the 15 degrees up and 30 degrees down that I need for the Roncz. Interesting though when I use a digital level it says the template is off by a few degrees. I think I'll trust the technology :)
This portion of the project took over 8 hours to design the link system and install the canard.
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titanium and composite links

titanium and composite links

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setup installed

setup installed

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checking throw

checking throw

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