Today was spent positioning the tail channel mount brackets, lower and upper. The tail box web was also positioned and drilled to size 40. The tailwheel steel tube and bracket was located and drilled into place in with the tail bulkead piece and mounts. The access to all these piees is tight and challenging but the order of dig so worked well whhile the fuselage was upside down and the lower skin able to be retracted for access at times when the full structural tightness required with the skin on wasn't needed.