Sunday, November 18, 2012

Nov 18th, 2012

This week I finished up the F705 bulkhead assembly, then did the F706, F707, F708, F711 and F712 bulkheads.  Kind of nice working on the tail cone guys.  Not much to them.

Last week I fouled up a couple of the seat belt attach brackets.  Failed to notice some of the fine print on the edge of the plans and made a mistake match drilling them.  I ordered a couple more.  They arrived this week and I match drilled them to the F705B bar.


The F711 bulkhead is another two part unit. There are two basically identical bulkheads that get riveted back to back. The top center section is trimmed out per the plans to provide clearance for the elevator pushrod tube to connect to the elevators. Two large 1/4" flat aluminum bars provide reinforcement on each side and stick up vertically above the bulkhead. These will be used later to attach the empennage to the fuselage.
From Fuselage
Riveting the two bars to the F711 bulkhead.


From Fuselage
Completed F711 assembly.
From Fuselage
The last thing I did this week was dig out the longerons. It's finally time to use them. They came with the wing kit almost a year ago and have been hanging on the wall waiting for the day I could use them. The longerons are each about 15' long and have to be trimmed down to 173 7/16" inches. I must have checked the measurement a dozen times before I finally did the cut. Do *not* want to have to get another one of these because I messed up. The first thing they have you do is mark them up for left/right up/down fore/aft so there is absolutely no doubt about which is which. Then a couple of slots and a tang are cut out of the aft end to provide clearance for the F711 bars. Here's a shot of the cuts after they were more or less done.
From Fuselage
Next week I'll do the bends. Then it will finally be time to rivet some of the pieces together.