NSH – 122 mm BM21 GRAD
Panoramic Telescope P – M78
Panoramic telescope P – M78 serves for sighting in azimuth during firing from multiple rocket launcher BM – 21 122 mm.
Technical data:
| Magnification | 3,7x |
| Field of view | 10° 25’ |
| Diameter of outlet pupil | 4 mm |
| Distance of outlet pupil | 20 mm |
| Range of the azimuth mechanism | 60-00 |
| Range of the elevation mechanism | ±3-00 |
| Angular correction graduation scale on reticle | ±0-20 |
| Special graduation scale | letters and numbers |
| Temperature operating range | -30°c to +55°c |
| Mass | 1,6 kg |
Range Quadrant D -122 BM 21 – M78
Technical data:
| Range of the elevation mechanism | 0-00 to 12 -00 |
| Range of the angle of sight mechanism | +4-00 to – 2-00 |
| Range of the cross leveling mechanism | ± 6° |
| Temperature operating range | 4 mm |
| Range of the azimuth mechanism | -30°c to +55°c |
| Mass | 11,85 kg |
Collimator K – M78
Collimator K – M78 serves as sight point during firing from multiple rocket launcher BM – 21 mm and it can also be used in boresighting of sighting devices, orientation of weapon in basic direction as well as for connection survey of artillery battle order.
Technical data:
| Field of view | 10°40’ |
| Diameter of outlet pupil | 48 mm |
| Number of marks on reticle | 74 |
| Graduating value on reticle | 7,8’ |
| Marks on reticle scale | letters and numbers |
| The most convenient distance of the collimator | 6 – 8 m |
| Temperature operating range | -30°c to +55°c |
| Mass | 1,3 kg |
| Mass of the tripod | 3,5 kg |
Gunner’S Quadrant KM-2J
Gunner’s quadrant KM – 2J serves for measuring of barrel elevation and it can also be used for sighting in elevation in the case of sight devices damage.
Technical data:
| Range of the elevation scale | Lower angles group: 0-00 to 7-50High angles group: 7-50 to 15-00 |
| Accuracy | Lower angles group: 1,5’High angles group: 2’ |
| Temperature operating range | -30°c to+55°c |