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Date: 08-19-2018
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Number of Hours: 2.50
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Short Description: Firewall Components
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I did some volounteer work with my Rotary friends today, so just a short day at Roxby Downs Aeroplane Company as a result.
I finished making up the small doubler plate needed for mounting the battery and starter relays to the firewall. This is not just a matter of blindly copying the plans as I needed to be sure all mounting holes suited my specific relay types.
First I fitted a nutplate to the inside of the firewall for the battery relay. Then, with the relay bolted up to this hole I was able to mark the position for the other side hole, which then in turn became my datum for the doubler plate. With the doubler plate in position I could next match drill it to the firewall.
I finished off by riveting the nutplates to the doubler plate and giving it a coat of paint (after alodinging and priming). In between I also made up the short fuel vent line that connects to the left side fuel tank.
The doubler plate for mounting the battery and starter relays to the firewall
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Firewall is drilled, ready for the doubler plate
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I also made up the second bit of fuel breather tube that connects to the left side fuel tank
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