Process for the in-flight programming of a trigger time for a projectile element
AssigneeGiat Industries
InventorsGérard Lamorlette, Thierry Bredy
Life of this patent
Estimating the term…
Abstract
A process for the in-flight programming of a trigger time for an element of a projectile by a fire control system of a weapon, wherein the muzzle velocity (Vo) of the projectile is measured and the distancing velocity of the projectile at at least one other point during its trajectory after exiting the weapon barrel it measured. Based on these measured values an optimal trigger time is determined for the element so as to minimize the difference between the actual ground impact point and the desired ground impact point for the projectile or for a payload released during the payload's trajectory, and a programming or corrective programming is transmitted to the projectile which takes this optimal trigger time into account.
Claims19
A process for the in-flight programming of a trigger time for an element of a projectile by a fire control system of a weapon, comprising the steps of:
- a muzzle velocity of said projectile is measured,
- a distancing velocity of said projectile at at least one other point during its trajectory after exiting the weapon barrel is measured,
- based on these measured values an optimal trigger time is determined for said element so as to minimize the difference between the actual ground impact point and the desired ground impact point for said projectile or for a payload released during its trajectory,
- a programming or corrective programming is transmitted to said projectile in flight which takes this optimal trigger time into account.
A fire control system for the in-flight programming of a trigger for a projectile comprising a speedometer, a computer transmission means for transmitting to the projectile during a flight trajectory, and a programmable fuse, comprising a timer, a receiver, a computation unit and an element which is triggered during the flight trajectory, wherein said speedometer uses radar technology.
A process used by a fire control system of a weapon to correct a trajectory of a projectile in flight, the projectile fired by the weapon, comprising the steps of:
- measuring a muzzle velocity of the projectile substantially at a time the projectile leaves the weapon;
- measuring a flight velocity of the projectile at at least one point along the trajectory;
- computing an optimal trigger time for an element of the projectile to correct an actual trajectory of the projectile to provide projectile detonation substantially at a designated target impact point;
- and
- providing triggering programming to the projectile in flight based on the optimal trigger time.
Dependencies are inferred from the claim text.