Today's Message Index:
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1. 09:19 AM - Re: Stab Replacement and Rigging (TeamGrumman@aol.com)
2. 10:14 AM - Re: Stab Replacement and Rigging (A. F. Cacella)
3. 07:38 PM - New Video (Jeff Simon)
Message 1
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| Subject: | Re: Stab Replacement and Rigging |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 6/26/04 11:49:22 PM, steven.jackson14@adelphia.net writes:
> I'm replacing the right stab on my plane and I'm wondering if I need the
> rigging fixtures to rerig the elevator and trim tab once I'm complete.=A0=20I
> checked the maintenance manual and its a little short on the details.=A0 I
> know that ideally, I'd use the fixtures, but since the only place to get
> them is Fletchair, I thought I would see if you can do the job properly
> without the rigging fixtures...
>
Sorry, I don't really know much about the 2-seat Grummans. Call Fletcher
and see if he can answer your question.
Gary
Message 2
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| Subject: | Re: Stab Replacement and Rigging |
--> TeamGrumman-List message posted by: "A. F. Cacella" <n4zd@juno.com>
> "Steven Jackson" <steven.jackson14@adelphia.net> writes:
> I'm replacing the right stab on my plane and I'm wondering
> if I need the rigging fixtures to rerig the elevator and trim tab
> once I'm complete.
Yes, =a= rigging fixture is specified to be used by the Service
Manual procedure, thus excluding the Mark-1 Eyeball alone.
> I know that ideally, I'd use the fixtures, but since the only
> place to get them is Fletchair,
Not so, rigging fixtures are not a Sole Source Entity as so many
other parts are, "only from Fletchair".
Maybard Crosby has a set left over from his Dealer Days,
and has indicated that he'll rent 'em out like Fletchair does.
One might try asking him at:
maynardccrosby@earthlink.net
But a fixture is just a fixture, a frame to transpose measures
and such from one place to another. The Service Manual photo
in Fig 5-3 is clear enough to illustrate what is already perceived
as a "big protractor" by the spec talking about angles.
> I thought I would see if you can do the job properly without
> the rigging fixtures...
It most certainly CAN be done without =THE= rigging fixtures
from Fletchair Tool Rental.
Making your own fixture out of cardboard sheets (one time use?)
or any lightweight material on-hand is both possible and adequate.
No need at all to spend any $$-bucks on such a simple item.
A few hints maybe less obvious:
1) the center point of the big protractor is the center of the
elevator
torque tube at the front of the elevator, the point around which
the elevator rotates.
2) the zero-degree starting point is the extended chord line of the
elevator and horizontal stabilizer as-one chord w/o "bend" from
the elevator trailing edge through the pivot-point center of the
elevator torque tube and on to the center of the leading edge of
the horizontal stabilizer. A "rigging fixture" for this need be
no more complex than a straight edge (ruler) held at arms' length
and sighted from abeam the tail as making that chord line from
the center of the leading edge, thru the torquetube center and
onto the trailing edge... ? A straight line scored across a
scrap
piece of Lexan or Plexi (or cheap acrylic) would be nifty and
work
well for "setting" that point in the center of the torque tube.
Nothing wrong with KISS and using the stuff ya got.
Personally, I think it might be a good and useful Service to the
community if someone having a Web Site would post some line
drawings detailing the simple nature of a rigging fixture. This is
not to compromise or intrude on Fletch's efforts to "make a buck",
nor to "cost them business". It is such a simple item, a fixture,
charging so much to rent it out is a bit --- overdone, perhaps ?
OTOH, in these days of Sue 'Em, attempting to disseminate such
information my pose a threat of subsequent liability. <sigh>
Even the simple stuff has to get complicated ?
Art Cacella 1970 American AA-1 N6155L "Dinkie"
Winston-Salem, NC
>
> Any suggestions
>
> Steven Jackson
> '75 AA-1B (O-320)
> N1434R
> L22
> Yucca Valley, CA
>
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> http://www.matronics.com/FAQ/TeamGrumman-List.htm
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Message 3
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--> TeamGrumman-List message posted by: "Jeff Simon" <jeff@irealtylink.com>
I just ordered this video to have a look!
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