Today's Message Index:
----------------------
1. 07:49 AM - Re: Push/Pull Tubes Instead of Cables? (Jim Belcher)
2. 11:59 AM - Re: Push/Pull Tubes Instead of Cables? (Gig Giacona)
3. 12:00 PM - Re: New List (Gig Giacona)
4. 03:00 PM - Re: Re: Push/Pull Tubes Instead of Cables? (Larry Winger)
Message 1
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| Subject: | Re: Push/Pull Tubes Instead of Cables? |
On Wednesday 06 August 2008 20:55, John Reinking wrote:
> Tried looking thru the archives (maybe I'm doing something wrong here...
> ) looking for input from you more experienced chaps regarding
> SUBSTITUTING push/pull rods instead of stainless cables for the
> ailerons. Have heard mention of same in earlier posts discussing this
> but would really like to hear your thoughts and opinions. For
> example, would they provide more effective control than cables (thinking
> about any stretching of the cables.)
Using tubes instead of cables is usually considered to give a smoother feel
than cables, since even the small amount of stretch is eliminated. This is
felt by some to be particularly true when the cables go around a pulley,
which induces drag.
But tubes weigh more than cables. Tubes also can't go around corners, which
cables can with a pulley or (small angles) a fairlead. If you have a corner
and a tube, something like a bell crank is needed to translate the motion.
Bell cranks also add to the weight.
As usual, it's a tradeoff. My gut feel is that there aren't enough pulleys nor
long enough cables in a 601XL/650 to make this worth the estra weight and
trouble.
================================================
Jim B. Belcher
BS, MS Physics, math, Computer Science
A&P/IA
Instrument Rated Pilot
General Radio Telephone Certificate
================================================
Message 2
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| Subject: | Re: Push/Pull Tubes Instead of Cables? |
The aileron cable is a fairly long and completely straight run. I'm thinking about
using push rods there. Dave Nixon used them in his 601XL and he is happy with
them. I'm waiting on some photos from him.
z601(at)anemicaardvark.co wrote:
> On Wednesday 06 August 2008 20:55, John Reinking wrote:
>
>
> > Tried looking thru the archives (maybe I'm doing something wrong here...
> > ) looking for input from you more experienced chaps regarding
> > SUBSTITUTING push/pull rods instead of stainless cables for the
> > ailerons. Have heard mention of same in earlier posts discussing this
> > but would really like to hear your thoughts and opinions. For
> > example, would they provide more effective control than cables (thinking
> > about any stretching of the cables.)
> >
> >
>
> Using tubes instead of cables is usually considered to give a smoother feel
> than cables, since even the small amount of stretch is eliminated. This is
> felt by some to be particularly true when the cables go around a pulley,
> which induces drag.
>
> But tubes weigh more than cables. Tubes also can't go around corners, which
> cables can with a pulley or (small angles) a fairlead. If you have a corner
> and a tube, something like a bell crank is needed to translate the motion.
> Bell cranks also add to the weight.
>
> As usual, it's a tradeoff. My gut feel is that there aren't enough pulleys nor
> long enough cables in a 601XL/650 to make this worth the estra weight and
> trouble.
> ================================================
> Jim B. Belcher
> BS, MS Physics, math, Computer Science
> A&P/IA
> Instrument Rated Pilot
> General Radio Telephone Certificate
> ================================================
--------
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=197172#197172
Message 3
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Yes it did and the 601 and the 650 are close enough that it would be stupid to
split them up.
Ron Lendon wrote:
> I think Zenith worked good enough.
--------
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=197174#197174
Message 4
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| Subject: | Re: Push/Pull Tubes Instead of Cables? |
Gig,
When the pictures come through, please re-post them here.
Thanks.
Larry Winger
601XL/Corvair
Fuse 50%, wings and control surfaces done
Do Not Archive
On Thu, Aug 7, 2008 at 11:59 AM, Gig Giacona <wrgiacona@gmail.com> wrote:
>
> The aileron cable is a fairly long and completely straight run. I'm
> thinking about using push rods there. Dave Nixon used them in his 601XL and
> he is happy with them. I'm waiting on some photos from him.
>
>
> z601(at)anemicaardvark.co wrote:
> > On Wednesday 06 August 2008 20:55, John Reinking wrote:
> >
> >
> > > Tried looking thru the archives (maybe I'm doing something wrong
> here...
> > > ) looking for input from you more experienced chaps regarding
> > > SUBSTITUTING push/pull rods instead of stainless cables for the
> > > ailerons. Have heard mention of same in earlier posts discussing
> this
> > > but would really like to hear your thoughts and opinions. For
> > > example, would they provide more effective control than cables
> (thinking
> > > about any stretching of the cables.)
> > >
> > >
> >
> > Using tubes instead of cables is usually considered to give a smoother
> feel
> > than cables, since even the small amount of stretch is eliminated. This
> is
> > felt by some to be particularly true when the cables go around a pulley,
> > which induces drag.
> >
> > But tubes weigh more than cables. Tubes also can't go around corners,
> which
> > cables can with a pulley or (small angles) a fairlead. If you have a
> corner
> > and a tube, something like a bell crank is needed to translate the
> motion.
> > Bell cranks also add to the weight.
> >
> > As usual, it's a tradeoff. My gut feel is that there aren't enough
> pulleys nor
> > long enough cables in a 601XL/650 to make this worth the estra weight and
> > trouble.
> > ================================================
> > Jim B. Belcher
> > BS, MS Physics, math, Computer Science
> > A&P/IA
> > Instrument Rated Pilot
> > General Radio Telephone Certificate
> > ================================================
>
>
> --------
> W.R. "Gig" Giacona
> 601XL Under Construction
> See my progress at www.peoamerica.net/N601WR
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=197172#197172
>
>
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