Hrs: 16

Joggled doublers for CF stringers

Due to the winter cold I didn’t work on the plane in the recent 2 months. Since this week it’s around 10 degrees so some work could be done.
There are 3 stringers on each side of the CF that have a flange with a 2.4 mm step and limited edge distance, this joint didn’t feel very strong so I strengthened it with joggled doublers.

This seems like a weak joint:

CAD, since they are not identical I added some notches to identify them:

CAD forming blocks:

CAM ready:

Test fit left side:


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