Today I began to work on beefing up the outer end of the left elevator trim tab spar (E-606PP) by tying it into the E-720J Stiffener. You can see this in the diagram below. Unfortunately when I started this, I didn’t have too much in the way of guidance or direction. Just that it would […]
Work Continues on the Left Elevator and More F1 Mod Details
Tonight I’ve enlisted the help of my buddy Garet to help me with bending the elevator skin tabs to close out the trim tab area of the left elevator. There are several options when it comes to how to deal with these tabs. Some builders opt to cut them off and make a little rib […]
Trim Tab Spar Machine Countersinking
Tonight I had a quick work session, but it required some precise work. The building instructions talk about machine countersinking the top flange of E-606PP (left elevator trim tab spar) to accept the dimples in the E-701-L elevator skin. I started by using some scrap wood and clamps to securely hold the E-606PP spar. This […]
F1 Mod – Elevator Tip and Counterbalance Skin Stiffener
In this log entry I’m working on one of the F1 Rocket elevator mods to stiffen the elevator skins in the area of the counterbalance skin (E-713) and tip rib (E-703). See the diagram below to see the skin stiffener (red) and doubler (green). In the picture below, you can see that I start with a […]