Today is the day to start riveting the Firewall together. To start, I clecoed the four Firewall Angles to the Firewall Sides. I wanted to see how all the holes and parts lined up. Also, it gave me a 15th chance to make sure I didn’t rivet the holes I wasn’t supposed to (you can see some of the “do not rivet holes” with orange tape on them).
Here is a close up of the top center of the Firewall.....
.....without the upper Firewall Angle.....
.....the bottom right corner of the right Firewall Side with all three Firewall Angles and Gussett.....
.....the bottom left corner of the left Firewall Side with all three Firewall Angles and Gussett.
Once I was able to see how things went together, it was time to install the rivets....a lot of them. All of rivets used today were AN426AD4-4 and AN426AD4-7 (only where the Gussett covers the Firewall Angles. Here is the front of the left Firewall Side showing the manufactured heads of the rivets installed on the Firewall Side.
Here is a closer look at the corner that has the Gussett (on the other side of the Firewall Side).
This is the opposite side of the picture above showing the Firewall Angles and the shop head side of the rivets.
And a close up of the Gussett to Firewall Angles.