Front Control Stick
Most
of us figure out
pretty quickly that the front control
stick needs to be cut to fit in the RV-8.
If left at its original length, it bangs into
the
instrument panel before
you can get full forward on the controls.
The two big changes most
of us make are bending the stick
(if you are going to), and adding some sort of stick grip. Here is what I did for
both.
Bending
the Stick
The choice to bend or not
is another one of those personal
things that make building your own airplane so much fun—you can
customize it to
fit you perfectly. I
have read and
talked to a few builders who decided to keep theirs unbent. If this fits for you,
perfect. Because I
have shorter arms, I wanted the
stick grip a little farther aft than it would be unbent. Yes, this makes the grip
pretty close to my
stomach when full aft, but the normal, level flight position is
comfortable.
In the past, a lot of
guys sent their front control stick off to a guy who specialized in this kind
of bending, but that
service is no longer available. The
dimensions are available, though, so I used them as a starting point to
bend my
stick
to the shape I wanted.
Original
recommended bending dimensions
I live in a small town in
Louisiana,
so I brought my stick to the only
shop in town that does this kind of metal fabrication. He promised he could make
the bends and not
ruin the stick by having buckles or wrinkles.
Unfortunately, he couldn’t, and I got back a
junked piece of metal that
I would never put in my airplane.
So I
ordered another stick from Vans, and decided to cut and weld it myself.
I used the ruined stick
as a template to get the correct
positions for the cuts. I
found that the
dimensions for the original bending weren’t perfect for me. The bottom bend was a
little too low and
caused the stick to hit the seat before full aft was achieved. So I moved the bend up a
little. I added my
final dimensions to this diagram.
My
bending dimensions
I made two cuts almost
all the way through the stick, one
for each of the two bends. Then
I bent
the stick in both places ensuring the stick stayed straight and
untwisted. Then I
welded those two cuts shut. I
repeated this process a couple of times
until I got the degree of bending I wanted.
I spent a little time
with the grinder, making the welds
look pretty, then I filled in the really low spots with JB Weld, but
Bondo or
any other type of filler would have worked just as well. Then I primed and
repainted the stick.
Stick
Grip
I
waited until after the
bending was complete before cutting
and fitting the stick grip. Bending
the
stick changes the total length, and I wanted to make sure everything
fit properly.
Fitting the infinity grip
was straight forward. The
hardest part was putting the grip back
together onto the stick. The
switches
kept falling out of the slots, and the wires kept moving in the way. But with a little
patience, I got it all to
fit.
I chose to use a d-sub
fitting for the electrical
connections, as this seemed to be the smallest connector that would
handle
enough wires.
I
haven’t assigned all the
switches yet, but I do have the trim and autopilot disengage on the
front control stick. I connected
every wire to the d-sub, so
adding more functions in the future will be a lot easier—I won’t have
to pull
the stick apart, or do any more wiring on it.
I’ll only have to run the circuits to the
d-sub.
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