CH-640 Fuselage Hull - Stage One (42 of 206)


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Position the firewall to the front bottom skin. I will try to take a more detailed picture of this since this is a bit tricky. I spent a lot of time searching through the drawings to figure out how the firewall should connect to the skin. I think I have it figured out. The front bottom skin slides in between the lower horizontal firewall angle and the bottom lip of the firewall. This also means that the bottom lip of the firewall goes between the skin and the center floor channel and also between the skin and the longerons. I am not going to drill and rivit this section until I can confirm with Zenair that this is correct.
Position the firewall to the front bottom skin. I will try to take a more detailed picture of this since this is a bit tricky. I spent a lot of time searching through the drawings to figure out how the firewall should connect to the skin. I think I have it figured out. The front bottom skin slides in between the lower horizontal firewall angle and the bottom lip of the firewall. This also means that the bottom lip of the firewall goes between the skin and the center floor channel and also between the skin and the longerons. I am not going to drill and rivit this section until I can confirm with Zenair that this is correct.


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