Control horns, is it just me or... ?

Wed Sep 3 09:48:30 AKDT 2003

Looks like the pin size in the clevis is larger
diameter than a Hayes pin clevise(comparable to the
4-40 rod in the picture). Should give greater bearing
area though, I know after a couple hundred flights the
Hayes or Rocket city metal pinned clevises wear into
the mating connector.

--- GW <gw at gwair.com> wrote:
> Thanks for the info Brian
> 
> Now  that product would accomplish what we want.
> 3/4" long will reach the
> hingline in most applications of aileron and
> elevator. The longer one would
> be a great match for Rudders with large bevels.
> Durability will be the next
> test.
> Probably want to dump the cotter pin setup, (have
> not seen one in hand, so
> Im guessing on that) Match up the Hayes clevises
> with steel pin and you
> would have a nice setup on the hingeline.
> GW
> Gerald Williams
> Email : gw at gwair.com
> Webpage: www.gwair.com
> 
> Support Tony Stillman District 5 VP
> http://webpages.charter.net/nneville/nneville/
> 
> 
> 
> ----- Original Message -----
> From: "Brian Young" <b4598070 at yahoo.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, September 03, 2003 11:04 AM
> Subject: Re: Control horns, is it just me or... ?
> 
> 
> > Have you seen the new Dubro products? They are
> > offering a couple new horns, one at 3/4" offset
> might
> > be about right:
> >
> > http://dubro.com/du-bro/dub_cat/images/DUB04.jpg
> >
> > They arent very sexy looking but could work.
> >
> >
> > --- Keith Black <tkeithb at comcast.net> wrote:
> > > Tom,
> > >
> > > You make a good point about the ZNLine horns not
> > > being adjustable in height.
> > >
> > > Honestly, if I could just find some longer arms
> to
> > > go on the IM horns that
> > > would solve the problem. It's surprising to me
> how
> > > many manufactures have
> > > not considered this, especially since pull-pull
> has
> > > been such a big deal for
> > > a while now.
> > >
> > > One reason I'm being picky about this is that on
> > > this plane I was
> > > considering using pull-pull on the elevator and
> > > rudder. That means three
> > > different surfaces (two elevator halves and the
> > > rudder) need the connection
> > > point over the hinge. This also rules out
> angling
> > > the horn arm since the
> > > opposite side would stick out the wrong
> direction.
> > > Since, I'll be doing this
> > > on three surfaces I'd prefer to use a product
> that's
> > > designed to do the job
> > > rather than trying to make something work that
> > > wasn't designed to solve the
> > > problem.
> > >
> > > Thanks for you input, you made some good points.
> > >
> > > Keith Black
> > >
> > >
> > > ----- Original Message -----
> > > From: "Koenig, Tom" <Tom.Koenig at actewagl.com.au>
> > > To: <discussion at nsrca.org>
> > > Sent: Tuesday, September 02, 2003 10:33 PM
> > > Subject: RE: Control horns, is it just me or...
> ?
> > >
> > >
> > > >
> > > > Keith,
> > > > Try a smaller bevel...but do both sides of the
> > > hinge line.
> > > >
> > > > I do it much like Gerald. I use 3 mm stainless
> > > steel rod however for my
> > > > horns. I make sure the threads are rolled
> threads
> > > and not cut. I bevel
> > > both
> > > > sides of the hinge line, and then I spend a
> little
> > > time on the lathe and
> > > > make up a little 'cone' style rod supports,
> much
> > > like what you now see on
> > > > the IM hardware.
> > > >
> > > > I prefer the threaded rod style 'horns'. The
> fine
> > > metric thread can give
> > > you
> > > > very precise adjustments when setting up a
> model.
> > > I do it all mechanically
> > > > first. I find then that the 'electronic'
> > > adjustment is only a few percent
> > > > either way. Sometimes I 'turn' my threaded rod
> by
> > > only a 1/4 of a turn to
> > > > get the exact throw I'm after, then I'll glue
> and
> > > lock it down.
> > > > Infact I have found great variations in
> accuracy
> > > in the actual servos this
> > > > way.
> > > >
> > > > I guess thats one advantage some sponsored
> flyers
> > > have..they can go
> > > through
> > > > a pile of servos to "match" them as close as
> > > possible to each other.
> > > >
> > > > I too have used the ZN, PL horns....but they
> limit
> > > you to the height of
> > > the
> > > > horn. There is only one place to mount your
> > > clevis. I find I cannot get
> > > the
> > > > mechanical adjustment I require from this
> style of
> > > horn...but they sure
> > > look
> > > > nice! Impractical in my book however. I just
> > > cannot maximise the
> > > resolution
> > > > of my radio using this style of horn.
> > > >
> > > > There are some plastic arms out there that
> measure
> > > 8mm from centerline to
> > > > the pivot hole. I buy them from our local
> > > shop...BUT...they only come as
> > > > part of  an aileron torque rod set up. I
> believe
> > > they are a British brand.
> > > > The make is RADIOACTIVE. I really cant help
> you
> > > much more than that. I am
> > > > unaware of a website for them ( I have not
> looked
> > > yet!). I just use the
> > > > arms. The torque rods end up getting twisted
> into
> > > "art" <BG> by my three
> > > > year old!
> > > >
> > > > If you get really stuck, I''ll ask what I can
> at
> > > our local shop. Failing
> > > > that , I can try and send some to you if  you
> are
> > > desperate. Just remember
> > > > I'm down here in the land of Aussies, so it
> too is
> > > a long way!
> > > >
> > > > Good luck and zap me offline if you need any
> > > further help.
> > > >
> > > > Tom
> > > >
> > > >
> > > >
> > > > > ----------
> > > > > From: Keith Black[SMTP:tkeithb at comcast.net]
> > > > > Reply To: discussion at nsrca.org
> > > > > Sent: Wednesday, 3 September 2003 13:49
> > > > > To: discussion at nsrca.org
> > > > > Subject: Re: Control horns, is it just me
> or...
> > > ?
> > > > >
> > > > > Gerald, thanks for the reply, your
> description
> > > was quite clear.
> > > > >
> 
=== message truncated ===

=====
Brian Young
Tulsa
b4598070 at yahoo.com
918-745-6046h
918-838-0900w

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