US 6,269,747 B1Granted

Training rocket for smoke development

AssigneeNammo Raufoss AS

InventorsKåre R. Strandli, Johans Hamarsnes

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Abstract

A training rocket for smoke development. The training rocket includes a rocket tube which contains powder and constitutes a propulsion motor for the rocket. The rocket includes a forward training head which contains a smoke composition adapted to emit visible smoke upon impact. An igniter charge, such as a tracer charge, which can be ignited by the propellant powder is situated in the rearmost of the training head, behind a bursting charge which can be ignited by the igniter charge. The igniter charge and the bursting charge are situated behind the smoke composition in the training head, for igniting the smoke composition, in a capsule which can be forced rearwardly from the training head due to the increased pressure caused by combustion of the smoke composition, whereby an aperture is formed for passage of smoke gases rearwardly in the rocket, through the rocket tube and out of it.

Claims6

Dependent claims

A training rocket for producing smoke, the rocket comprising:

a propulsion motor comprising a rocket tube filled with propellant powder;
a training head attached to a forward end of the propulsion motor, the training head comprising a smoke composition which is adapted to emit visible smoke upon activation;
and
a capsule detachably secured to a rearward end of the training head, the capsule comprising front and rear end portions, the front end portion of the capsule attached to the training head, the capsule further comprising an igniter charge and a bursting charge, the igniter charge positioned at the rear end portion of the capsule, such that when the rocket is fired, the igniter charge is activated by the propellant powder, whereby the igniter charge, after a time delay, activates the bursting charge which then ignites the smoke composition, and the capsule is forced rearwardly into the rocket tube due to increased pressure caused by combustion of the smoke composition, thereby permitting smoke generated by the smoke composition to be released out of the propulsion motor.

1 more element

Dependencies are inferred from the claim text.