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Dave's RV-10 Build Log
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Date:  2-18-2019
Number of Hours:  6.00
Manual Reference:  
Brief Description:  Preparing Avionics Cage Mounting

Removed the panel and frame from the plane to provide access.

Installed a 3/4" angle along the top of the left angular panel brace to replace stiffness/strength from notching this for the audio panel. Prepared the angle by drilling #40 holes along the length of the angle and deburing. Then primed the angle with self-etching primer. Clamped the angle to the brace just above the cut line and match drilled holes into the brace. Riveted the angle to the brace with AN470AD3-4 rivets.

Removed the control cables bracket from the sub-panel by drilling out the 6 rivets. The bracket was blocking the rear access to the GTN650, and is not needed with the placement of the throttle quadrant on top of the tunnel cover.

Re-installed the panel. This time attached the GTN650 rack to the panel mountings before installing the panel. Still have a few of the panel frame mounting holes that are slightly too small.

Considered ways to provide support to the back of the GTN650 rack. While I purchased some 3" aluminum angle for this purpose, it is too thick and heavy to be a good solution. After looking more at the control cable bracket, decided to try to fabricate a similar bracket to use for the GTN650 support from the sub-panel.

Measured and sketched up the bracket on paper, then cut it with snips from sheet aluminum removed for the baggage door. Layed out the bend locations on the aluminum piece and drilled 1/4" relief holes at the intersection of the bends. Clamped the aluminum sheet with a piece of wood with radiused edge in the bench vice and then made the narrow edge bends starting by hand and then using a dead blow hammer to finish them. Clamped the same way to start the bend for the larger mounting flange, but then had to finish this bend using the hand bending pliers. Determined the location required for the slot in this new bracket to fit over the bottom stiffening flange on the sub-panel, drilled with a #30 bit at the end of the slot for stress relief, than cut the slot with the band saw. Cleaned
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