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Operative
Missiles
Antonio
Alcaraz Betoret (Spain)
Si
tienes un artículo que quieras publicar, envíalo vía e-mail
por fax 986 224682 o por correo normal a: MNY c/ Mª
Berdiales nº 9-3ºJ -36203 Vigo(Spain)
Si tienes un museo naval
cerca, haz que se conozca. Hay más de los que sospechas.
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How to build operative missiles
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In the search for realism
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As
time goes by our models get better and better. We
endeavour to achieve more realistic products and we see
to it that those elements complementing the design carry
out their functions as similarly as possible to the
original models.
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When
navy enthusiasts tried to build classical models, they
could only reproduce the movements of radars or the
turning of gun turrets, but since times have changed,
navy has also changed in many ways and now missiles are
really trendy. For this reason, modellers are facing a
new challenge - they have to get their models to launch
missiles. |
Although it might seem to be a very
complicated task, it is not that difficult, it is just a matter
of using your imagination. To build missiles I use small
whistling rockets, because they do not explode like normal ones
do; on the other hand, the same shooting effect is achieved, but
we can rest assure that we are not going to hurt anybody, if we
miss the shot
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To build the launching
tube I use a 10-mm inner diameter aluminium tube, or I
adjust this measurements to the rocket size. A lid must
be built for the tube basis in order to prevent that in
the moment of ignition, a flame comes out of the bottom. |
| This lid must be built in
a conical shape with a hole in the middle to make room
for the fuse in the back of the launching tube where the
resistance that produces ignition lies.
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For
the resistance, we will utilise the wire used for
incandescent resistances that can be found in stoves and
burners, although we can also get it in a hardware or
electric supply store. We can also use the wire from a
stove that doesn't work anymore, but the length of the
resistance will depend on the voltage. To test the
voltage, we will connect the wire to a battery pole and
we will vary the length until we verify that the wire
gets incandescent without breaking. Once we have found
the appropriate length, we will build a spiral and we
will place it in the rear part of the launching tube
using a nylon tag (a terminal strip).
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 Once
we have finished building the launching tube and the
ignition resistance, we will assemble the box where the
missiles lie. But before this, we will make a hole on
this box for the missiles to come out easily, or we can
also build a lid to hide the tubes, and then take it out
when the moment comes to launch the missiles.
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In
order to shoot from the distance, we may use three types
of triggering mechanisms, depending on the number of
shots: for two shots, we can use two micro-switches
placed on a servo, so with each movement of the servo we
will activate one of them. For four shots, there is also
system in which we need a servo, which has to be
installed on a printed circuit board. By doing this we
obtain two independent contact points for each turning
direction of the servo and therefore we get four shots.
Finally we can also use an electronic circuit, which is
connected to the receiver and we can activate two
commuted relays in each sense so we get, like in the
previous case, four shots. However, we don't need the
servo. This device is supplied by electronize under the
denomination switchers with two our four relays. The
device is quite affordable if we take into account that
we don't need the servo. |
This system is perfect for nuclear
submarines, since it provides them with great realism. The last
thing I would like to tell you is that you must let your
imagination fly and provide your models with the realism they
deserve.
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Text and pictures:
Antonio
Alcaraz Betoret |
Home/
800x600.Actualizada.
30/11/05
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