13 October 2010
Floor Stiffeners

3.0 hours

Drilling lightening holes
Drilling lightening holes (Full size)

The F-6118 bracket can have lightening holes. Drilled those

Finished with holes
Finished with holes (Full size)

I followed the dimensions on the drawing, but the center hole is not lined up with the others. I probably should have adjusted the location and fixed that.

Locating floor stiffeners
Locating floor stiffeners (Full size)

The F-972-B-L/R longerons are located in place, then drilled. This was not easy as they had to be held in place overhead, while the first holes are drilled. It was quite hard to hold them still. This picture is from the floor looking up.

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