I don't believe I have seen any one ask about this and I am suprised
it hasn't come up.
I am setting up the pitch pushrods, torque tube and that whole mess
under the cockpit. Yes I did have the same problem that I believe Tony K
had where the centerline of the pushrods didn't match the centerline
of the aileron torque tubes. I did the same fix, thanks Tony. Though I did
measure the distance and got a good measuerment at least with my tape
measure. The pitch torque tube was slightly off. A word of advice to
those who have not intstalled your aileron torque tubes yet. When
positioning those puppies and getting ready to mount the rear bearings use your
actual pitch torque tube as a jig to set it up. Make some sort of
plug to fit inside the aileron tube that hooks to each of the pitch
tube mounts on centerline that way you will be absolutely sure of being on
the money.
Enough of that, now for my question. I have found that the pitch push
rods as you know have to rotate inside the aileron tubes. However
they are constrained where they are attached to the pitch torque
tube. The ball end of the rod offers some degree of freedom to allow
rotation however it doesn't offer enough to accommodate the full travel of
the control stick in both left and right directions. In order to
achieve this one has to leave the locknut loose on the rod end by
the stick so the the ball end rotates slightly on it threads. Though I
have the cockpit upside down I know when I am sitting in it the control stick
won't go as far because my legs will be in the way. However the situation
with the stick at its max travel should not cause the rod end to bump into the
pitch torque tube mounting tab for it. I have not gotten to the
point of plugging in the wings yet. Does the full movement of the
ailerons constrain this motion so that the pitch push rods don't rotate far
enough to make this a problem?
Any thoughts or history will be much appreciated.
Thanks guys,
Steve Hagar
A143
Mesa, AZ
--- Steve Hagar
--- hagargs@earthlink.net
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