Thanks for all your comments. I think I am over analyizing things sometimes!
For what it's worth, I found a post on the Cessna 170 associations website saying the rudder cables on the 170 shoulnd't really be tensioned, just remove the slack. Makes sense to me. If the cables were in too much tension they might start to 'saw' through the fairleads where there are slight angle changes.
My two cents, -Jason
--- On Sun, 1/16/11, Jason Beall <super_rebel131@yahoo.com> wrote:
setFrom: Jason Beall <super_rebel131@yahoo.com>
Subject: [rebel-builders] Cable tensions - Was:control cable turnbuckles
To: rebel-builders@dcsol.com
Date: Sunday, January 16, 2011, 4:14 PM
Thanks all.
One other question: I can't find any reference to cable
tensions in the builders manual!?
Thanks, -Jason
--- On Sat, 1/15/11, Ron Shannon <rshannon@cruzcom.com>
wrote:
turnbucklesFrom: Ron Shannon <rshannon@cruzcom.com>
Subject: Re: [rebel-builders] control cablesettingTo: rebel-builders@dcsol.com
Date: Saturday, January 15, 2011, 6:36 PM
A couple suggestions:
First, this job is easier with two people. Start byrest"the pedals or
stick, as the case may be, where you want at the "attubeor mid-travel.
With the pedals, you generally want the main pedalFindvertical, or perhaps
leaning aft just a smidge. Use some dowels and tubing
slipped into the
horizontal tubes to keep all pedals lined up together.thea way to fix
them in position, or have one guy keep them square tothefloor.
Mount the forward turnbuckle clevis in place, and setisturnbuckle to
about 3-4 threads showing on each end. The AC-43 std.them upmax. 3 threads
exposed, so that will give you some room to tightenthea smidge. Place
the thimble in the rear end of the turnbuckle. Pullendcable through the
Nicopress and around the thimble and back through the
Nicopress until it's
nice and snug, and pinch the cable at the rear, narrowthimble,of the thimble.
Use a Sharpie to mark the cable at the top of theand doi.e., forward
center of the turn around the thimble.
Then you can take the turnbuckle off the forward endforthe crimping in
a more comfortable position, back by the seat positionwillexample, just by
realigning the mark to the top of the thimble. One guyotherhold the cable
tight _near_ the narrow end of the thimble, while theperpendicularityone handles the
crimp tool. The holder can help sight fortimes,and fore and aft
position. Of course, you crimp the Nicpropress threeside.first in the
middle, then on the thimble side, then on the cablecable andHighly recommended to get some extra thimbles andfirst,practice a
couple of those first. Of course, do the rudder endsThat'sand lock the
rudder in a centered position. (See http://n254mr.com/node/1375) And be
prepared to do one or more of these over, and...airplane building.
I set my springs last, and used little steel tangs to
the tension
exactly where I want it. See http://n254mr.com/node/1391