Firewall 27-2-6, 27-4-6, Tunnel Access Panels

There are a couple more tasks I needed to finish before I start riveting the forward fuselage assembly together including Dimpling the firewall Installing tunnel access panels to make future inspections inside the tunnel easier Firewall recess flange holes dimpled. Here you can see that I had already started thinking about control cable pass-thrus and had made some markings in the recess. I'll talk to this in an upcoming post Dimpling the firewall with the DRDT-2. Stainless steel dimples very easily and the dimples appear crisp Holes near the flanges of the firewall were dimpled with the squeezer For a few holes right next to the flanges, I used the rivet dimpling technique Firewall dimpled as seen from the forward side... ...and the aft side I test fit all the angles and brackets to make sure everything aligned I also decided to redimple the scat tube support as I wasn't fully happy with the attempts earlier. To get a crisper dimple I pulled the flange out about 20 degrees usi...