Today I spent a lot of time drilling holes in the arms of the HS-3201 forward spar doubler. As mentioned before, this is a key place to be using a drill press for maximum accuracy. I don’t have a lot of discussion to add. I think the pictures here speak for themselves and my process. […]
F1 MOD – Drilling the HS-3201 Forward Spar Doubler
Tonight I removed the HS-3201 forward spar doubler to drill the rivet holes used to attach it to the spar. This isn’t too difficult to do. First I started by determining the required rivet edge distance and I started with the most outboard hole on each arm of the doubler. As this doubler is an important […]
Horizontal Stabilizer – Trimming and Drilling
The horizontal stabilizer is really starting to come together. Now that I have all the ribs in and drilled, it’s time to take the skins off and once again get access to the internal structure for a little bit of trimming and some more drilling. With the skins off, you can see that I still […]
F1 Mod – Drilling Ribs HS-404 to HS-405
While reading other build log posts about this part of the Horizontal Stabilizer assembly there are a few different approaches to getting good results when drilling. This is critical because if you screw up and don’t drill something straight, not only will you ruin the rib, but also the forward spar. What is documented here […]