Bae Systems Bofors Ab

Forsvarets Materielverk

Saab Ab

Carin Vörde

Christer Thuman

Staffan Calsson

Kjell Wållberg

Henrik Skifs

Conny Sjöqvist

The invention relates to a method of, with a projectile () comprising a reactive charge (), combating an explosive-charged weapon unit (), preferably an enemy shell, so that undesirable harmful effects on the environment are reduced, wherein the projectile () is configured to penetrate the surface () of the weapon unit () upon impact so that a passage () is opened into the explosive () of the weapon unit (), through which passage () the reactive charge (), under the influence of the kinetic energy of the projectile (), is transferred to the explosive () of the weapon unit (). The method can be deemed to be characterized in that the reactive charge (), upon contact with the explosive () of the weapon unit (), reacts and starts a hypergolic reaction with the explosive (). The invention also relates to a projectile () for the said method.

Method for combating explosive-charged weapon units, and projectile designed for the same

The invention relates to a method of with a projectile () comprising a reactive charge (), combating an explosive-charged weapon unit (), preferably an enemy shell, so that undesirable harmful effects on the environment are reduced, wherein the projectile () is configured to penetrate the surface () of the weapon unit () upon impact so that a passage () is opened into the explosive () of the weapon unit (), through which passage () the reactive charge (), under the influence of the kinetic energy of the projectile (), is transferred to the explosive () of the weapon unit (). The method can be deemed to be characterized in that the reactive charge (), upon contact with the explosive () of the weapon unit (), reacts and starts a hypergolic reaction with the explosive (). The invention also relates to a projectile () for the said method.

A method of preparing salt of dinitramidic acid, comprising nitration of an initial compound with a nitrating acid mixture to form dinitramidic acid in a reaction mixture. A positive ion is added to the reaction mixture and forms with the dinitramide ion an ion pair complex which precipitates in the acidic reaction mixture, and the precipitate is separated from the mixture. The remaining spent acid can be reprocessed for recovery of acid for preparation of a new nitrating acid mixture. The preferred positive ion is the guanylurea ion which gives a precipitate of guanylurea dinitramide. The precipitate can be used as starting material for preparation of other dinitramide salts, such as KDN and ADN. The guanylurea ion can be formed in situ in the process by cyanoguanidine being reacted with the reaction mixture.

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Karlskoga, Sweden

Carin Vörde