I continued work on the mount for the autopilot servo that will control the ailerons. A right angle stiffening bracket was riveted to the mounting plate that mounts under the control stick mixer. There are two gaps in the rivet line to avoid interference with a secondary mounting bracket that holds the servo. I actually had to make the bracket twice because I screwed up the first one by not making the bracket wide enough.. and the rivets would have been too close to the edge. But nothing wrong with a little extra practice. The second stiffening bracket came out just fine.
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| Stiffening bracket riveted to mounting plate |
I temporarily installed the mount, and also clamped on the servo bracket temporarily to figure out the alignment. Once more I broke out the orange string to precisely determine the best spot to place the servo. I found that I needed to drop the servo down just a bit more, so added some spacers between the servo bracket and the base plate to until I got the string to align within a degree or two of all the pulleys.
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| Servo temporarily clamped to the bottom of the mounting plate |
On Friday Ed and Michael located and drilled the mounting holes for the fuel selector valve plate. On Saturday, Michael installed the fuel selector valve on the fuel selector plate. This involved drilling a large hole in the plate and locating the mounting screw holes. Since we wanted to have the valve removable, nutplates were installed on the fuel selector plate to accept the mounting screws. We realize that the valve needed to be rotated 180 degrees so that the PILOT could read the markings. So a new fuel selector plate was made from 0.040" aluminum plate using the original as a template. The second one was completed much quicker.
Mike also installed a flexible connection from header tank to sump valve. 6AN fittings were installed into the header tank and the sump valve. Stainless steel braided fuel line was added between the header tank and sump valve. We went with a flexible hose here because of the short distance and vibrations during flight. On each end of the SS braided fuel line a 6AN fitting was installed.
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| Fuel Selector Plate Drilled and Cleco'd |
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| Fuel Selector Valve Installed in the Correct Orientation |
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