Finished some of the stiffeners sanding and fabricated the R918 parts.
Cleco'd the internal structure together to get a good understanding of the way it all fits. Then we packed up the bits to returned to the Horizontal Stabiliser.
The front spar of the Horz Stab is common between the RV 7 and 8. The RV7 has to be slightly modified.
First we drilled the #30 pilot holes
Then opened up the edges to the 1/4" using the uni-bit
The finished product ready for bending to the magic 6 degree line along with the spar angle stiffeners.
The method we used to bend the front HS angle stiffeners. They did require quite a firm hit, about 3 - 4 times. The problem was if you didn't hit it hard enough the material started to work harden which meant you then had to hit it even harder. Mainly preparation time and getting everything lined up.
We next fluted all the HS ribs and cleaned up the parts. This is all the HS internal parts together ready for the skin to be cleco'd on so that we can complete the match drilling.
The finished cleco'd complete HS structure. We struggled with the front nose ribs and it needed some gentle 'persuasion'.
We drilled out the #19 rib holes on the rear spar. It was after dinner time so we called it a day.
