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Thread: [BAC-Mail] Yoke Shaft Bushings

  1. #1

    [BAC-Mail] Yoke Shaft Bushings

    Yeah, I have an idea. We need to have some sort of
    facility that has all the machines and goodies to make
    all these good ideas that we have come up. Then we
    can have a yearly fly in to this place and when we
    aren't eating hot dogs (and hamburgers) and talking
    planes with everyone else. You could slip over to a
    machine and create some user supplied parts.

    We could call the yearly event "BAC in the air"...

    Jay

    --- Mark Gooderum <mark@jump.tc> wrote:

    > I have found a nice external padded gust lock that
    > fits the ailerons
    > well (and thanks to the bungeee interlocks
    > reasonably stabilizes the
    > rudder).
    >
    > However, I can't find or even envision an external
    > solution for locking
    > the stabilator and at least on my SuperMouse the
    > seat belts don't even
    > come _close_ (I'd probably need another foot or more
    > of webbing) to
    > being able to loop through the yoke ala the "Piper"
    > gust lock.
    >
    > Having looked at the bushing it seems like a
    > replacement machined out
    > aluminum would be a much more durable and perfectly
    > serviceable
    > replacement (maybe with an internal nylon or - I
    > don't even think it
    > would take a CNC process to do it. Basically cut a
    > billet of stock
    > (maybe water jet?) to shape, drill the holes and
    > then plane the front
    > and back face to the correct angles. Of couse
    > without a PMA or STC this
    > would have to be an owner produced part - but on the
    > flip side maybe an
    > STC wouldn't be that hard...demonstrate that part is
    > dimensionally
    > equivlent and stronger than the original? Aluminum
    > replacing nylon
    > would clearly not be a flammibility issue...
    >
    > Failing that - any creative ideas for a stabilator
    > gust lock?
    > -=-
    > Mark
    >
    >
    > > -----Original Message-----
    > > From: bac-mail-bounces@beechaeroclub.org
    > > [mailto:bac-mail-bounces@beechaeroclub.org] On
    > Behalf Of
    > > Michael Rellihan
    > > Sent: Tuesday, April 11, 2006 11:13 AM
    > > To: bac-mail@beechaeroclub.org;
    > musketeermail@yahoogroups.com
    > > Subject: [BAC-Mail] Yoke Shaft Bushings
    > >
    > > Lately I have received a rash of requests for the
    > white Nylon
    > > yoke shaft bushings. The recent high winds have
    > caused
    > > owners to use their gust locks.
    > > Due to a number of factors, probably including
    > play in
    > > linkages, etc., many of the bushings have broken,
    > at the gust
    > > lock hole. In many cases, the break has
    > propagated through
    > > the bushing, rather than just breaking out the
    > side of the
    > > gust lock hole. The situation is probably
    > aggravated by the
    > > fact that most of the in-service bushings are now
    > thirty to
    > > forty years old.
    > > Everyone knows how brittle old plastic or Nylon
    > can get,
    > > especially if the plane has not been kept covered
    > or hangared.
    > >
    > > These bushings now run close to $400. While still
    > available,
    > > that's a horrendous price. My personal advice is
    > to save the
    > > Beech gust lock for emergency use only. Use the
    > seat belts
    > > if you can, when the control deflection won't
    > cause the tail
    > > to get bounced around. If you can't use the
    > belts, look to
    > > an aftermarket solution for a control lock.
    > Failing that,
    > > make yourself a padded external gust lock. I will
    > be looking
    > > into a PMA partner for these bushings, unless Oz
    > can take
    > > them on. In the meantime, try to protect the ones
    > you have.
    > > I had to charge $150 for the last ones I found,
    > due to their
    > > cost to me. I suspect that the next ones will
    > have to be
    > > priced closer to $250-$300, if I am lucky.
    > > _______________________________________________
    > > BAC-Mail mailing list
    > > BAC-Mail@beechaeroclub.org
    > >
    >
    http://www.beechaeroclub.org/mailman/listinfo/bac-mail
    > >
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    >


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  2. #2

    [BAC-Mail] Yoke Shaft Bushings

    Is there any treatment or lubricant we can use on these to help
    preservation?
    -Rick




    >>In the meantime, try to protect the ones you have.



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