Installed primed support brackets into airframe; aligned and pulled tail boom into support brackets, re-aligned tail boom to airframe with plumb bobs and laser for final tail boom alignment; measured tail boom up-angle; drilled all holes through support brackets and into tail boom; bolted and torqued all in place. I Measured the distance of the predrilled holes (in tail boom) for horizontal stabilizers and found there to be slight differences in the locations between the port and starboard sides.
