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Start / News and media / News Archive / News archive 2014 / Explosive Work at the Missile …

Explosive Work at the Missile Workshop

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Missile 15 is tested in the missile hall. Christer Hultberg, missile technician, makes sure everything works as it is supposed to.Missile 15 is tested in the missile hall. Christer Hultberg, missile technician, makes sure everything works as it is supposed to.

The bunker is locked, and the area is cordoned off and guarded when booster rockets, warheads and pyrotechnics are dismantled. The next job is the final testing of a missile.

A short bike ride into a Muskö hillside takes you into the missile hall. A missile, connected to computers and measurement equipment, hangs from the ceiling. Before the missile arrived here all explosive substances had been removed. Nearby, but separated from all other activities, is the workshop.

– This is where we remove all the explosives, wings, fins, and casings before missiles are taken to the missile hall for maintenance, says Lennart Larsson, Head of the Missile Section at FMV’s Muskö naval workshop.

A maximum of eight people are allowed in the workshop when the explosives are being removed – the workshop is locked and the area is cordoned off. Because the area also needs to be guarded, to prevent unauthorised people from being injured in the event of a mishap, work is carried out in so-called “campaigns”.

– For example, we might take apart 10 missiles in one week. Then we’ll do the work that doesn’t require any guards. Then we’ll reassemble all the missiles with the guard force back in place. This way we are able to reduce our guarding costs.

Flight simulation

In the missile hall in the hillside, missile technician, Christer Hultberg sits at a large desk with several computers. A missile hangs in a test rig nearby. Christer’s computers are connected to the missile and he simulates the missile’s flight when locked-on to a target.

– One of the tests involves checking the operation of fins by testing the target guidance magnetron. The magnetron transmits microwaves to allow radar guidance. Microwaves are transmitted to the target via an antenna and then reflected back to the missile.

During the half-hour test he checks that everything works the way it should and that no components need to be replaced.

Greater demands

In addition to maintenance of the actual missile, the workshop is also responsible for maintenance of the tubes in which the missiles are housed on board ship and in ammunition depots.

In older corvettes missiles are housed in tubes on the ship’s deck. However, on the Visby corvettes missiles are housed in tubes below deck. This places greater demands on the tube and has necessitated a number of modifications, including changes to the tube itself, the tube’s hatch system and the exhaust system – and even the location of individual seals.

- We have been working on the integration of the missile system into the Visby corvettes since 2006. It’s been a complex task and we have faced a number of challenges. However, we are now on the right track, says Lennart Larsson.


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Published: 2014-05-28 10:16. Changed: 2014-05-28 10:32. Responsible: Show e-mail address.