Thursday, April 11, 2019

Levelling the twist in the Aft Fuselage - 4 hours

A couple of evenings in the garage with not a whole lot to show for it. I dug out the plumb-bobs and set up to remove the twist out of the aft fuselage. Setting up the plumb-bob for the back is vary easy, but a bunch of time spent figuring out how best to hang the plumb bob out front. The angle of the bulkhead prevents the plumb-bob hanging from a cleco hole above. In the end I used a long aluminum angle to line up the backbone of the airframe, and then suspended the plumb-bob off of that.



To help ensure everything was straight. I used levels across the top as well.

If that wasn't enough...I made extra sure checking plumb-bob alignment with the laser. (I was a little unsure how aligned the angle at the top of the bulkheads was....this proved it)