More fins work...

Last weekend, I attached the three fins to the engine tube along with the centering rings. I spent time sussing out the alignment of the outer shell to the fins and slotting them through the shell. I also devised the attachment method for the shell to the engine mount. Taking a cue from Dr Sue, I used blind nuts pressed into the aft centering ring. After all that engineering, I was rewarded with a clean fitting fin can.