Fuse with reversible airbrake
AssigneeBae Systems Bofors AB
InventorsThomas Pettersson, Anders Ekberg
Life of this patent
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Abstract
A fuse is provided with a reversible airbrake intended for a projectile, wherein the airbrake is arranged such that errors which occur in the flight path of the projectile can be corrected by performing one or more extensions and retractions of the airbrake. The airbrake includes at least two braking surfaces symmetrically arranged each behind a respective protective device arranged on the casing surface of the fuse, wherein the brake surfaces can be extended and retracted in a rotational direction behind the at least two protective devices via a twist shaft arranged centrally in the fuse.
Claims9
A fuse with a reversible airbrake, comprising
- a casing having a casing surface,
- protective devices arranged on the casing surface, and
- a reversible airbrake intended for a projectile, wherein the airbrake comprises
- at least one brake disc, the at least one brake disc comprising at least two brake surfaces arranged on a brake ring, the at least two brake surfaces being in a form of radially protruding parts on a periphery of the brake ring, the radially protruding parts being evenly distributed around the casing surface and arranged each behind a respective protective device of the protective devices in order to reduce the air resistance of the brake surfaces behind,
- wherein the brake surfaces are rotationally movable about a longitudinal axis of the fuse between a retracted position behind the respective protective devices and an extended position and, when retracted to the retracted position, the brake surfaces are concealed behind the respective protective devices when viewed from a front end of the fuse.
Dependencies are inferred from the claim text.