8 August 2010
Alignment and final drilling

9.0 hours

Forward plumb bob
Forward plumb bob (Full size)

I created plumb bobs from sockets and fishing line. This allows me to make sure the assembly is vertical from front to back before drilling the j-stiffeners

Another plumb bob
Another plumb bob (Full size)

The next one back

Line it up with the centerline
Line it up with the centerline (Full size)

Making sure it is correct.

The final plumb bob
The final plumb bob (Full size)

This one is at the end of the tailcone.

Final drilling j-stiffeners
Final drilling j-stiffeners (Full size)

Now that everything is lined up, drill the stiffeners and cleco. After this the assembly is much more rigid.

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