Riveted the Rudder Drive Horn Assembly together. This is the first piece of the airplane I've riveted, and it turned out really well.
As a confirmation, I fitted it into the bottom of the rudder, where it will be riveted in place in the future. I'm very pleased with the way it fit. I'm not sure if you can tell from the picture, but the bend angle of the drive horn matches the rudder. You can see how I bent the drive horn a couple of posts ago.