Fire-control device for a small arm and small arm

A small arm, comprising:

• a fire-control device comprising:
• an inertial sensor unit for six degrees of freedom;
• a distance sensor configured to determine a distance to a target sighted via a sight;
• a user-input device comprising a push-button;
• and
• a computation device configured to determine a target orientation of the small arm from the distance and from parameters, predefined in a storage unit of the computation device, of a projectile to be fired by the small arm,
• wherein the target orientation is an orientation of the small arm in which the small arm is able to hit the target,
• wherein the target orientation comprises a target elevation angle,
• wherein the computation device is configured to determine the target elevation angle of the small arm from the distance and from parameters, predefined in the storage unit, of a projectile to be fired by the small arm, and
• wherein, after a change in position of the small arm, the computation device is configured to correct for the distance and the target elevation angle using data from the inertial sensor unit, and
• wherein the computation device is configured to detect a change in position of the small arm by way of the inertial sensor unit and to correct the target orientation using data from the inertial sensor unit,
• wherein the computation device is configured to determine the distance to the target after a user input,
• wherein the computation device detects changes in elevation and target azimuth angle of the small arm and distance to the target as long as the push-button is held by the user and determines an assumed movement of the target from these changes after the push-button is released,
• wherein the computation device is set up to determine the target azimuth angle of a current orientation of the small arm from data from the inertial sensor unit when the small arm is directed towards the target relative to an initialization position.

An assault rifle comprising:

• at least one of an under-barrel grenade launcher, a portable grenade launcher, or a grenade gun, and
• a fire-control device comprising:
• an inertial sensor unit for six degrees of freedom;
• a distance sensor configured to determine a distance to a target sighted via a sight;
• a user-input device comprising a push-button;
• and
• a computation device configured to determine a target orientation of the small arm from the distance and from parameters, predefined in a storage unit of the computation device, of a projectile to be fired by the small arm,
• wherein the target orientation is an orientation of the small arm in which the small arm is able to hit the target,
• wherein the target orientation comprises a target elevation angle,
• wherein the computation device is configured to determine target elevation angle of the small arm from the distance and from parameters, predefined in the storage unit, of a projectile to be fired by the small arm, and
• wherein, after a change in position of the small arm, the computation device is configured to correct for the distance and the target elevation angle using data from the inertial sensor unit, and
• wherein the computation device is configured to detect a change in position of the small arm by way of the inertial sensor unit and to correct the target orientation using data from the inertial sensor unit,
• wherein the computation device is configured to determine the distance to the target after a user input,
• wherein the computation device detects changes in elevation and target azimuth angle of the small arm and distance to the target as long as the push-button is held by the user and determines an assumed movement of the target from these changes after the push-button is released,
• wherein the computation device is set up to determine the target azimuth angle of a current orientation of the small arm from data from the inertial sensor unit when the small arm is directed towards the target relative to an initialization position.