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The
Edinburgh lads have been raving about a system of all moving
tailplane control using square sectioned tubing that Andy
has perfected. He has obligingly sent in the following notes
and sketches of this system for us all to utilise. (Figure
1. )
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Figure 1
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With
building in mind, I promised Alan Hulme an article on a system
that I have been working with in my latest models, for all-moving
tailplanes. The idea came about whilst I was looking for a
system to enable my tailplanes on the large Tornado to be
used as tailerons as on the full sized aircraft. The basic
layout is shown in Fig 1 (above).
Figure 2 shows how the
layout has been used in my latest models. The system is based
on square brass tube and the Micro Mold tiller arm, which
is supplied with two brass bushes. The one we use is for 10g
piano wire. When you select the brass tube, take the one that
just fits the 10g wire and the next size up which fits inside
the tailplane. The diagrams should explain everything.
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Figure 2
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Figure
2 shows the layout in my new TORNADO. The sketch shows how
to use brass tube for bushes under saddle clamps but this
is not essential as the saddle clamp allows enough movement
to act as a bearing. This system works very well if you smear
a little 'Vaseline' on to the drive shaft, which will make
it easier to slide tailplanes on and also makes it tacky,
to prevent them from sliding off.
Figure 3 |
Figure 3 is for taileron models. In my case each tailplane
had its own servo operated via an airborne electronic mixer.
When flown in this mode it was like flying a rudder only model,
but when I get the wings to swing back the tailerons will
become very powerful.
Figure 4 |
Figure
4 shows the layout in my new larger BAe Hawk. This is a better
arrangement as you can make the back end more to scale.
In
this case the shaft is straight, the angle being made in the
tailplane as shown in the sketch.
Figure 5 |
Figure 5 shows the layout in my latest model, the
Aero L39 Albatross. This system can also be used in a normal
set up i.e. tailplane and elevator, and was handy since I
wanted to be able to remove the tailplane for transporting
the model in the car. Hope this has been of some interest.
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