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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.  

 

   

How to build operative missiles

In the search for realism

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.

 

image001.jpg (59451 bytes)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

image003.jpg (24019 bytes) 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.

 

image005.jpg (26797 bytes)

 

image007.jpg (36242 bytes)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).

 

image009.jpg (29782 bytes)image011.jpg (30805 bytes)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.

 

image013.jpg (50899 bytes)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.

 

Text and pictures: Antonio Alcaraz Betoret 

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