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Task: F-705 tasks
we did a bunch of required tasks for the F-705 bulkhead. There
is a lot going on with it. It serves as the seat back support,
rear wing spar attach, along with the support for the tip-up
canopy to latch into. Under all the U-channels is the F-705G
angle. This is a very thick piece of angle stock that needs
a 1/4" hole drilled through for the static line pass-through
(left side only). It is the only way to get the static line
from the aft fuse forward to the panel. Next we cutout the
notches in T-757-T for the canopy latch to go into. This took
careful measuring, some drilling, and lots of filling. Lastly,
we drilled 3 more holes in the upper longerons that go into
is the left T-706G angle after drilling the 1/4 hole on the
right side. I marked some of the undrilled holes just to get
an idea of where they would be located. The angle is thick
enough that no bushing is required.
moved onto T-757. Using the plans, we carefully marked the
square that needs to be cutout for the canopy latch finger.
Marking 1/8" in from each side, I drilled 4 1/8"
holes and then opened them up to 1/4".
A hole in the exact center opened up nicely with a unibit.
After some filing, the cutout looked great!
The left side T-757-T went even quicker as we could use the
right side as a template.
Next we measured
and marked the location for 3 extra holes in the upper longons.
Rivets will secure the T-757 to the bottom side of the longerons.
we match-drilled through the longerons into T-757 and opened
the holes up to 1/8"