February 3, 2021
Somewhere along the way Van did some spin testing on the RV-7 prototype. The spin recovery characteristics of the plane did not meet his expectations, and a larger rudder is the fix. The RV-7 kits started shipping with the RV-9 rudder, and he gave those of us that already have the other rudder kits for free. That's hard to beat. The new rudder is built the same way as the other except the trailing edge is riveted instead of bent and it is larger of course.
Started on the new rudder today. I got as far as cutting the stiffeners out and back drilling half of them to the left rudder skin.
Finished back drilling all the rudder stiffeners, deburred all the stiffeners and both skins and started dimpling.
Finished deburring / dimpling the stiffeners and skins. Primed the stiffeners
Backriveted the stiffeners to the rudder skins and started fitting the rudder skeleton pieces together
Drilled all the rudder skeleton parts together and started deburring / dimpling the parts.
Finished the deburring and dimpling of the rudder parts except for the trailing edge piece. I still need to countersink that thing
Finished all the dimpling and countersinking and primed the rest of the rudder parts.
Started riveting the rudder parts together. I got as far as the reinforcement plates the bottom rib and the counterbalance skin.
Did a little more riveting on the rudder.
Finished the second rudder. I must say I liked the first one better. I did'nt care for the whole riveted trailing edge thing.
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