Abstract: The invention relates to a recoil impulse generator for a weapon simulator comprising a force storage element and an impulse mass that can be moved and that is moved from a stressed to an unstressed position with a triggering element is actuated in order to simulate a recoil impulse. The recoil impulse generator comprises a drive that drives a spindle uninterruptedly during a shot sequence simulating several shots; a coupling that is connected to the impulse mass and to the force storage element and that engages in the spindle in an engaged state and that is moved along the spindle by means of rotation of the spindle in order to bring the impulse mass into the stressed position again the force applied by the force storage element; a disengaging means that switches the coupling to a disengaged state when the impulse mass has reached the stressed position; and an engaging means that switches the coupling to the engaged state when the impulse mass has reached the unstressed position.

Abstract: The invention relates to a pressure vessel (10) for gases, in particular helium, which is characterized in that the pressure vessel has an outer casing having pressure resistance up to an internal gas pressure of at least 10 bar, in that the outer casing of the pressure vessel has at least one highly diffusion-resistant barrier layer having a leak rate for helium at an internal gas pressure of 10 bar and room temperature of preferably less than 10?2 mbar·l/s, and in that the vessel has an accommodating volume for gas at atmospheric pressure of at least 25 liters. The outer casing of the pressure vessel can comprise at least one barrier layer made of a flexible polymer film having a high barrier function or ultra barrier function or at least one highly gas-tight flexible barrier layer made of EVOH. The vessel can be bag-like or, in particular at higher pressures, inherently rigid.

Abstract: The invention relates to a device for determining the target point of an observation unit. The device comprises a target area; a scan line projector, which projects at least two non-parallel scan lines and moves said scan lines across the target area; a control unit, which controls the movement of the scan lines; and an optical target point detector, which provides a target point signal to the control unit if a scan line is detected. The control unit determines the position of each scan line 03 in the target area at the time of the detection by the target point detector and outputs the virtual intersection of the two scan lines at said time as the target point. The invention further relates to a method for determining the target point of an observation unit.

Abstract: The invention relates to a recoil impulse generator for a weapon simulator comprising a force storage element and an impulse mass that can be moved and that is moved from a stressed to an unstressed position with a triggering element is actuated in order to simulate a recoil impulse. The recoil impulse generator comprises a drive that drives a spindle uniterruptedly during a shot sequence simulating several shots; a coupling that is connected to the impulse mass and to the force storage element and that engages in the spindle in an engaged state and that is moved along the spindle by means of rotation of the spindle in order to bring the impulse mass into the stressed position again the force applied by the force storage element; a disengaging means that switches the coupling to a disengaged state when the impulse mass has reached the stressed position; and an engaging means that switches the coupling to the engaged state when the impulse mass has reached the unstressed position.