Wednesday 6 August 2008

6th August 2008 - Right Horizontal stabiliser

After the little distraction on the ailerons and flaps it's into the right HS. First the outline was laid out on the building board. The 1-1/4" main spar sets the datum for the height of the tubing so I needed 1/4" under the rear spar, 5/16" under the top cross piece and 3/8" under the front edge. As before drills were used as the shims to set the heights. The various pieces of tubing were then cut to length and notched as required. They were then half welded into position before the stabiliser was turned over and the rest of the welding completed and the second bottom cross member added. Next the leading edge and the two spars need cutting to length, the remainder of the cross members adding together with the tab that will be bolted to the fuselage to set the HS incidence.





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