elevator pushrod exits

tph1 at bellsouth.net tph1 at bellsouth.net
Mon Dec 6 10:35:24 AKST 2004


They are all mounted and ready. I will start to lay out the lines tonight and get it ready for "surgery" tomorrow night.
thanks
> 
> From: "Troy A. Newman" <troy_newman at msn.com>
> Date: 2004/12/06 Mon PM 02:28:14 EST
> To: <discussion at nsrca.org>
> Subject: Re: Re: elevator pushrod exits
> 
> Yes the Temptation is narrower than most of the current designs at the tail
> post area. This means that your elevator control horns will be closer to the
> centerline of the model. This also means that you pushrod exits for the DEPS
> will be further aft than my Supreme exits...This is a generality as it also
> depends heavily on where you stick the elevator servo. All of these things
> must be mounted up and ready to go before you install the DEPS.
> 
> TN
> ----- Original Message ----- 
> From: <tph1 at bellsouth.net>
> To: <discussion at nsrca.org>
> Sent: Monday, December 06, 2004 12:23 PM
> Subject: Re: Re: elevator pushrod exits
> 
> 
> > Thanks a lot Troy. Now I have a clear picture of what I'm doing. This is
> for a Temptation and the fuse isn't very wide from the elevator servo back
> so I didn't want a mess to clean up and add extra weight to the plane.
> > thanks again, Tom
> > >
> > > From: "Troy A. Newman" <troy_newman at msn.com>
> > > Date: 2004/12/06 Mon PM 01:52:55 EST
> > > To: <discussion at nsrca.org>
> > > Subject: Re: elevator pushrod exits
> > >
> > > The exits will depend on you servo and elevator control horn locations.
> > > These need to be mounted first.
> > >
> > > Next locate the servo arm connection point and transpose this to the
> side of
> > > the fuse on the outside. We are going to project two lines down the fuse
> > > with a  long 3 or 4 ft straight edge.  Looking at the side of the fuse
> use
> > > the straight edge to connect the mark on the side of the side up at the
> > > forward servo connection and the top of the elevator control surface
> horn.
> > > I use masking tape on the side of the fuse near where I think everything
> > > will exit. I then draw a line on the masking tape along the straight
> edge. I
> > > use a pencil-sharpie(thin)-or a ball point doesn't really matter.
> > >
> > > Next step is to transpose the mark on the side of the fuse to the bottom
> of
> > > the fuse.. Place the model inverted on the table or in a  stand...Apply
> a
> > > length of masking tape vertical to the fuse and wrap it around the fuse
> past
> > > the bottom seam or center location. Note if your servo connection point
> is
> > > not centered in the fuse you'll have to offset this belly starting point
> for
> > > the next projected line. My elevator connections are always in the
> > > center...So my 2nd projected line starts at the fuse seam. or in the
> middle.
> > > If your servo connection location is 1" off to one side then you need to
> > > make a mark on the masking tape in this location...This is projecting
> down
> > > thru the fuse..you are just transfer this location to the tape.
> > >
> > > Now use your 4ft straight edge again and this time go from the forward
> mark
> > > on the belly out directly toward the control horns. Looking down from
> above
> > > put a mark on the side of fuse (on your masking tape that was done in
> the
> > > previous line projection down the side.) Where these two projected lines
> > > cross....This is your fuse exit location.  Depending on you fuse width,
> > > control horn spacing from centerline, and distances to the front
> > > servo...this slot is usually about 1.5 to 2" long. You will have to work
> the
> > > slot with a small round file to get the inside angles to prevent bending
> of
> > > the tubes as they exit..
> > >
> > > Trial fit the whole thing into place and use the round file to open the
> fuse
> > > up in order to eliminate bending of the tube guides as they exit. This
> is
> > > what causes friction in the system. Also make sure that you have no
> friction
> > > when the rods are in the tubes, tubes attached to the balsa sticks, and
> the
> > > system is not in the model. All you want is to duplicate this
> non-friction
> > > condition by not having the tubes bending as they exit the fuse.
> > >
> > > Its an easy thing once you try it. For reference my exits on my (2)
> Supremes
> > > are about 10inches in front of the elevator control horn locations. Yes
> 10
> > > inches of this 0.070" pushrod is un-supported. It is still stiffer and
> more
> > > solid than any other system I have seen or used. Depending on how wide
> your
> > > fuse is, where your elevator servo is located, how long the fuse is, and
> how
> > > far from the centerline your elevator control horns are will determine
> the
> > > exit locations.
> > >
> > > On a fuse that is not painted or finished its cake...Make the slots
> bigger
> > > and allow the system to float. Then fill the excess gaps with some
> > > lightweight filler. If the fuse is wood and monokote-Ultraote and
> unfinished
> > > its easy a small sliver of balsa can be your filler. If its already
> covering
> > > with iron on covering then you can patch a mistake.
> > >
> > >  If the model is done and painted...you have to be careful. I have done
> 3
> > > models recently that were finished painted and done. The exit slots can
> > > still be done clean and neat.
> > >
> > > Good Luck, Its not that hard to figure out.
> > >
> > > Troy
> > >
> > > ----- Original Message ----- 
> > > From: <tph1 at bellsouth.net>
> > > To: <discussion at nsrca.org>
> > > Sent: Monday, December 06, 2004 8:51 AM
> > > Subject: elevator pushrod exits
> > >
> > >
> > > > I'm trying to figure out a way to get my Dual elevator push rod system
> to
> > > be installed correctly. How can I determine where the exit hole/slot
> will be
> > > in the fuse for this? I don't want to leave a 4" slot in the fuse as an
> > > Oop's either.
> > > > thanks
> > > >
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