Project: Mike     -     Entry

Nov 29, 2020 1.5 Drilled the center bearing bracket Category: Empennage
Not a big job but a lot of setup to get it so that you can drill these six #30 holes in the right side HS-411 bracket. As mentioned previously, the left side HS-411 and the bearing itself already had the 6 holes drilled in them. So it was just matter of positioning the left side 411 bracket and the bearing so that their holes lined up and then clamping that little assembly together so that you could match drill the remaining 6 holes in the right side 411 bracket.

So a bit of a setup to make this happen properly. Elevate the entire spar assembly with the 411 brackets and bearing cleco'd in place from the bottom up to make room for drilling. Also had to reverse a few clecos on the top and bottom sides to be able to get the drill in there without interference. Van's says to drill 4 of the holes and then take the assembly off of the spar and drill the remaining two on a bench. Easy enough and that's what I did. The bearing was a bit difficult to drill through but other than that, pretty straight forward.

Vans says you can prime the bearing if you want (not the actual rotating part obviously) so just a quick scuff and prep and a quick spray with the rattle can and let that hang dry for the evening. Will rivet this assembly together during the next work session.

Finished the night by skipping ahead a few steps and bringing the initial front HS spar parts out to the shop. This part looks a bit more complex, doh! Time for some online research.


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