The two tubes needs to be replaced. They have big scratches from the rudder control wire slamming into it. I thing the reason is to low wire tension. The tension is created by rubber cords holding the rudder pedals forward. The two tail support tubes are mounted on the upper boom tube by this aluminium bracket shown on the picture. The bracket is riveted on the boom tube. It needs new rivets and to be reassembled, because it has to much play now. It shouldn’t have any play at all. I am also going to insert delrin/ pom/acetal plastic rods in the tube ends. I can’t understand why they don’t use inserts from the beginning. Maybe to save weight and costs, but I guess they didn’t know better.
Jag är ett sätt att tänka.
Anders Aircraft & Automation 